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HomeMy WebLinkAboutItem 3.3TOWN OF LOS ALTOS HILLS February 5, 2009 Staff Report to the Planning Commission RE: SITE DEVELOPMENT PERMIT FOR A NEW TWO-STORY RESIDENCE WITH A BASEMENT AND THE REMOVAL OF 8 HERITAGE OAK TREES. LANDS OF LIU, 27755 EDGERTON ROAD (TO BECOME 27300 URSULA LANE), FILE# 166-08 ZP-SD-GD FROM: David Keyon, Associate Planner I/K APPROVED BY: Debbie Pedro, AICP, Planning Director -plP RECOMMENDATION: That the Planning Commission: Approve the requested Site Development Permit subject to the recommended conditions of approval in Attachment 1. BACKGROUND The subject property is a pie -shaped lot with frontages on both Edgerton Road and Ursula Lane and a panhandle that extends along the Ursula Lane right-of-way to Black Mountain Road. Driveway access is proposed from Ursula Lane, requiring a change of address to 27300 Ursula Lane from 27755 Edgerton Road. No structures or development currently exists on site. The property is 2 acres with an average slope of 37.3%, and is heavily wooded with oak trees (34 are Heritage Oaks as defined by Town Code Section 12-2.101). The property was created as part of a 10 -lot subdivision approved in 1976 (Tract 5762). This application is not eligible for the Fast -Track process under section 10- 2.1305.1(a)(3), as the applicant requests Grading Policy Exceptions for the front yard, driveway/turnaround, and house. DISCUSSION Site Data: Gross Lot Area: 2.14 acres Net Lot Area: 1.86 acres Average Slope: 37.3% Lot Unit Factor: 0.67 Item 3.3 Planning Commission Town Standard Increased Setbacks Proposed Front setback 40' Lands of Liu 178' Rear setback 30' 33'* 34' February 5, 2009 30' 33'* 98' to east, 65' west Height 27' Page 2 28' Overall height 35' 35' 30' Floor Area and Development Area (in square feet) Maximum Proposed Existing Increase Remaining Development Area 7,500 7,433 0 7,433 67 Floor Area 5,000 4,921 0 4,921 79 Basement n/a (852) 0 (852) n/a Site and Architecture The applicant proposes to construct a 4,921 square foot, two-story residence with 4,194 square feet on the main floor and 727 square feet on the lower level attached to an 852 square foot basement. The predominately 1 -story design keeps the residence within the height limit and minimizes visual impacts by reducing the two-story portion to the western end of the residence. Minimal yard area and landscaping is proposed, mainly due to the constrained nature of the site with steep slopes and oak groves. A front yard with tile and grass of up to 15 feet in width is proposed along the front of the house, which along with two decks and balconies provide the property with usable outdoor space. Setbacks and Heieht The house height ranges from 17'-7" to 22' for most of its length, increasing to 28' at the western end where the lower level (master bedroom) daylights. The maximum height is proposed at 28 feet. Per Town Code Section 10-1.504(a), the house is eligible for an increase in structure height subject to an increase in setbacks. The proposed residence meets the increased setbacks as outlined in the following table * Height increase from 27' to 28' allowed per Town Code Section 30-1.504(a) with 3' increase inside and rear setbacks and 4' increase in front setbacks. Driveway & Parkin¢ The owner proposes site access from Ursula Lane rather than Edgerton Road. With slopes around 50% and a large concentration of oaks at the northern end of the site along the Edgerton Road frontage, access from Edgerton Road is deemed unfeasible absent significant grading and removal of Heritage Oaks. The proposed 14' wide driveway is Town Standard Increased Setbacks Proposed Front setback 40' 44'* 178' Rear setback 30' 33'* 34' Side setbacks 30' 33'* 98' to east, 65' west Height 27' 28'* 28' Overall height 35' 35' 30' * Height increase from 27' to 28' allowed per Town Code Section 30-1.504(a) with 3' increase inside and rear setbacks and 4' increase in front setbacks. Driveway & Parkin¢ The owner proposes site access from Ursula Lane rather than Edgerton Road. With slopes around 50% and a large concentration of oaks at the northern end of the site along the Edgerton Road frontage, access from Edgerton Road is deemed unfeasible absent significant grading and removal of Heritage Oaks. The proposed 14' wide driveway is Planning Commission Lands of Liu February 5, 2009 Page 3 designed to preserve a 42" oak within the Ursula Lane right-of-way. The Fire Department requires a hammer -head style turnaround to provide the required access to the project site as most of the building site exists more than 150 feet beyond Ursula Lane. Four (4) parking spaces will be provided, three within the garage and one on the southern side of the house new the front entry. Outdoor Liehtine Lighting on the proposed residence will comply with the Town Code requirements, with light fixtures incorporating frosted or etched glass. Landscape lighting will be reviewed with the landscape screening application required prior to building permit final per Condition 2. Heritaee Oak Removal The site is heavily forested with 38 oak trees, 33 of which meet the definition of a Heritage Oak with a diameter of 12" or greater (Section 12-2.101 of the Town Code). Eight (8) heritage oaks we proposed to be removed for construction of the residence and driveway/tumaround. An arborist's report prepared by McClenaban Consulting (dated 4/22/08) outlines the characteristics of every tree on site and recommends a tree protection plan for the trees to be preserved (Attachment 7). One 35" oak (marked as no. 4 on the arborist's map) will be removed for construction of the driveway, which the Environmental Design and Protection Committee requests to be preserved. The specifications for the required fire engine turnaround require the driveway at the proposed location. Re -configuration of the fire engine turnaround would require additional grading and site disturbance and would likely result in the removal of the 20" oak to the immediate north of the driveway (which will provide screening for the downhill neighbor), as well as retaining walls in excess of the 13.5 feet currently proposed. Seven additional Heritage Oaks are proposed to be removed, all in fair condition with diameters of 12 inches to 20 inches. Due to the heavily wooded nature of the site it is impossible to construct a residence without the removal of some Heritage Oaks. Town Code Section 12-2.502(c) gives the Planning Commission the authority to require the replacement of each removed Heritage Oak by up to five (5) trees of reasonable size and the payment of a multi-year bond to ensure the trees are maintained and cued for. Due to the heavily wooded nature of the site, staff recommends a 1:1 replacement with 48" box oak trees (condition 2). To ensure protection of the remaining oak trees on site, staff recommends a condition of approval requiring all remaining oaks to be fenced per the Town's tree fencing standards prior to the start of work (condition 4). An ISA Certified Arborist must provide a letter Planning Commission Lands of Liu February 5, 2009 Page 4 stating that all recommendations in the McClenahan report regarding preservation of the remaining oaks were implemented during construction (condition 5). Grading Policy Exceptions According to the submitted grading plan, grading quantities include 1,200 cubic yards of cut and 600 cubic yards of fill, with a net export of 600 cubic yards. The applicant is requesting the following Grading Policy Exceptions: 1) Yard Area- the Grading Policy allows a maximum of four (4) feet of cut for yard areas. Up to 8' of cut is proposed for the patio/yard area at the front of the house. The total area affected by this Grading Policy Exception is 1,437 square feet. 2) Difference Between Existing Grade and Finished Floor -the Grading Policy states that the height of the lowest finished floor of a structure should generally not be set in excess of three (3) feet above existing grade. A difference of up to 10' between existing grade and the proposed finish floor elevation is proposed under the family room. The total area affected by this Grading Policy Exception is about 447 square feet. 3) Driveway and Turnaround -the Grading Policy allows fill of up to 3' for the construction of a driveway and fire turnaround. Up to 13' of fill is proposed for the driveway and fire turnaround, requiring a retaining wall of 13 '/n feet along the northern end of the driveway. The total area affected by this Grading Policy Exception is 2,188 square feet. The Grading Policy is used by staff in evaluation of development projects and making recommendations to the Planning Commission and City Council. Individual sites may dictate a need to deviate from the criteria, to the extent permitted by the Planning Commission or City Council. The project site has slopes of 20-25% covering most of the southern portion of the property (the area closest to Ursula Ln.), with slopes increasing to about 50% to the north of the site along Edgerton Road. No flat areas exist to provide a reasonable building envelope and flat driveway/turnaround area. The applicant seeks an exception to allow up to an 8' cut to create a 15' wide yard area along the front of the house. Together with the decks and balconies, this will be the only reasonably usable outdoor space on site. The retaining walls will be terraced (none exceed 4' in height), and will be hidden from view of surrounding residences by the house. The configuration and location of the house is designed to follow the contour lines and "step with the slope" to the greatest extent feasible, but due to progressively steeper Planning Commission Lands of Liu February 5, 2009 Page 5 slopes at the northwest portion of the building site the height of the finished floor exceeds three feet in height above the existing grade along the northern and northwest portion of the residence. The project Architect used most of this space to construct the master bedroom, but unused underfloor up to 10' in height remains and the applicant requests a grading policy exception for these areas. Despite the requested exception, the house maintains a relatively low -profile for most of its length, and existing oak woodland downslope will provide mature screening to minimize off-site visibility. Finally, the 13' of fill proposed for the driveway and turnaround is required to comply with Fire Department driveway and turnaround standards. The 13.5' retaining wall will be partially screened from adjacent properties by the existing oaks to the north of the driveway, with requirements for additional screening vegetation possible during the landscape screening permit. Drainage Existing natural drainage sheetflows to the northwest to a swale or to the northeast into Matadem Creek. The proposed drainage system consists of storm drains along the south and west side of the residence which collect runoff from the driveway/turnaround, southern portions of the house, and the "front" yard area and daylights into an energy dissipater before flowing into the natural drainage swale along the northewest property line. Geotechnical Review Cotton, Shires, and Associates, the Town's Geotechnical consultants, reviewed the proposed plans, Geotechnical Report by Milestone Geotechnical (6/11/08), and Engineering Geologic Report prepared by Steven F. Conelly, C.E.G. (5/9/08). Their review concluded that the design recommendations for the project identified in the reports generally appear appropriate for the conditions on site, subject to conditions requiring a final Geotechnical Engineering Investigation, a Geotechnical Plan Review letter, and a Geotechnical Field Inspection (conditions 27 through 29). Fire Department Review The Santa Clara County Fire Department reviewed the plans and requires a fire engine turnaround area (condition 30). The driveway slope is 20%, but was reviewed deemed acceptable by the Division Chief (Attachment 6). Committee Review Pathways Committee The Pathways Committee recommends that an off-road pathway easement across the property from Ursula Lane to Edgerton Road be dedicated to the Town per the 2005 Master Path Plan, and that a native path be constructed. The Committee determined that Planning Commission Lands of Liu February 5, 2009 Page 6 a native path is better suited to the terrain than a type IIB path, but gave the property owner discretion as to the placement of the path and easement. A 10' wide pathway easement with a 5' wide native path is proposed roughly parallel to the western property line. The pathway will be constructed according to Town standards for a native path, with roughening of driveway surfaces where the pathway crosses the driveway (conditions 21-23). Environmental Design and Protection Committee The Environmental Design and Protection Committee commented on the removal of the 35" oak proposed to be removed for construction of the driveway and the removal of the blue oak grove at the location of the proposed residence. They also expressed a desire for an open space easement along the northeast property line (parallel to Matadero Creek). The 35" oak tree is proposed to be removed to comply with Fire Department turnaround requirements. Open Space Committee The Town's Open Space Committee reviewed the project and recommends an Open Space easement be dedicated for the entire portion of the property below the 565' contour line and the portion of the site within 25' of the top of bank of Matadero Creek (condition 14). This dedication preserves the steeply sloped and heavily vegetated lower portion of the site along Edgerton Road. Neighbor Comments As of January 29, 2009, the Town received 2 e-mails and one letter from neighbors regarding the proposed project (Attachments 9-11). ENVIRONMENTAL CLEARANCE (CEOA) The proposed new residence is categorically exempt from the provisions of the California Environmental Quality Act by provision of Section 15303(a). Planning Commission Lands of Liu February 5, 2009 Page 7 ATTACHMENTS 1. Recommended conditions of approval. 2. Grading Policy 3. Environmental Design & Protection Committee comments, dated 9/8/08. 4, Pathway Committee Minutes, dated 8/25/08. 5. Comments from the Central Fire District, dated 10/3/08 and 9/25/08. 6. Arborist report by McClenahan Consulting, LLC, dated 4/22/08. 7. Geotechnical Review letter from Cotton, Shires, and Associates, dated 8/6/08. 8. Letter from John Chau, Town Engineer, dated 12/15/08. 9. E-mail from Stephen Pahl, neighbor at 27431 Black Mountain Rd. 10. E-mail from Elaine Nelson, neighbor at 27261 Black Mountain Rd. 11. Letter from Tatjana & Lennart Olsson, neighbor at 27343 Ursula Ln. 12. Site plan showing requested Grading Policy Exceptions, prepared by Giulliani & Kull, dated 1/28/09. 13. Proposed development plans, prepared by Chu Design and Engineering, received 1/15/09. Planning Commission Lands of Liu February 5, 2009 Page 8 ATTACHMENT RECOMMENDED CONDITIONS FOR A NEW RESIDENCE AND GRADING EXCEPTION LANDS OF LIU, 13571 27755 EDGERTON RD/27300 URSULA File #166-08-ZP-SD-GD PLANNING DEPARTMENT Any further changes or modifications to the approved plan or the required landscaping shall be first reviewed by the Planning Director or the Planning Commission, depending on the scope of the changes. After completion of rough framing and prior to the time of the pre -rough framing inspection by the Planning and Engineering Departments, the applicant shall submit a landscape screening, landscape lighting, and erosion control plan for review. The landscape screening and erosion control plan is subject to a public hearing. Particular attention shall be given to plantings which will be adequate to break up the bulk of the residence and preserving the existing screening. The landscape plan shall include the replacement of all removed Heritage Oaks on a 1 for 1 basis at a minimum of 48" box size. All landscaping required for screening purposes, replacement, and for erosion control (as determined by the City Engineer) must be installed prior to final inspection. All lighting must comply with Town Policy. 3. A landscape maintenance deposit in the amount of $5,000 shall be posted prior to final inspection. An inspection of the landscape to ensure adequate establishment and maintenance shall be made two years after the installation. The deposit will be released at that time if the plantings remain viable. 4. Prior to beginning any grading operation, all remaining Heritage Oaks are to be fenced at the drip line. Chain-link fencing shall clearly delineate the drip line. Town staff must inspect the chain-link fencing and the trees to be fenced prior to commencement of grading. The property owner shall call for said inspection at least three days in advance of the inspection. The chain-link fencing must remain throughout the course of construction. No storage of equipment, vehicles or debris shall be allowed within the drip lines of these trees. 5. Prior to final inspection, an ISA Certified Arborist must provide a letter stating that all recommendations in the McClenahan report of 4/22/08 regarding preservation of the remaining oaks were implemented during construction. 6. All new exterior lighting fixtures shall have frosted/etched glass enclosures or be shielded light fixtures. Seeded or bent glass is not acceptable. No lighting may Planning Commission Lands of Liu February 5, 2009 Page 9 be placed within setbacks except as shown on the approved plan. The applicant shall provide the Town with a lighting detail or manufacturer's specification on the fixtures to be used, prior to acceptance of plans for building plan check. All lighting must comply with the Town's Lighting Policyprior to final inspection. 7. Prior to requesting the foundation inspection, a registered civil engineer or licensed land surveyor shall certify in writing and state that "the location of the residence and roof eaves comply with the location shown on the approved plans relative to the property lines." The elevation of the residence shall be similarly certified in writing to state that "the elevation of the residence matches the elevation and location shown on the approved plan" The applicant shall submit the stamped and signed letter(s) to the Planning Department prior to requesting a foundation inspection. 8. Prior to requesting the final framing inspection, a registered civil engineer or licensed land surveyor shall certify in writing and state that "the height of the new residence complies with the 28'-0" maximum structure height (with increased setbacks per Town Code Section 10-1.504(a)), measured as the vertical distance at any point from the bottom of the crawl space or basement ceiling if excavated below natural grade, to the highest part of the structure directly above (including roof materials)." The overall structure height shall be similarly certified in writing and state that "all points of the building (including chimneys and appurtenances) lie within a thirty-five (35 ) foot horizontal band based, measured from the lowest visible natural or finished grade topographical elevation of the structure along the building line and the highest topographical elevation of the roof of the structure." The applicant shall submit the stamped and signed letter(s) to the Planning Department prior to requesting a final framing inspection. 9. Skylights shall be designed and constructed to reduce emitted light. No lighting may be placed within skylight wells. 10. Air conditioning units shall be located a minimum of 40' from the front property line and 30' from the side and rear property lines. 11. Fire retardant roofing (class A) is required for all new construction. 12. No new fencing or gates are approved. Any new fencing or gates shall require review and approval by the Planning Department prior to installation. 13. The applicant shall pay any applicable School District (Los Altos or Palo Alto) fees prior to acceptance of plans for building plan check from Los Altos Hills. The applicant must take a copy of required fee payment forms that have been completed by the Town to both the elementary and high school district offices, pay the appropriate fees and provide the Town with a copy of their receipts. Planning Commission Lands of Liu February 5, 2009 Page 10 14. The property owner shall grant an open space easement to the Town over the northern portion of the property below the 565' contour line and within 25' of the top of bank of Matadero Creek, as shown on the site plan (Sheet 1). The property owner shall provide legal description and plat exhibits that are prepared by a registered civil engineer or a licensed land surveyor and the Town shall prepare the grant document. The grant document, including the approved exhibits, shall be signed and notarized by the property owner and returned to the Town prior to issuance of the building permit. ENGINEERING DEPARTMENT 15. Peak discharge at 27300 Ursula Lane, as a result of Site Development Permit 166- 08, shall not exceed the existing pre -development peak discharge value of the property. Detention storage must be incorporated into the project to reduce the predicted peak discharge to the pre -development value. Provide the data and peak discharge hydrologic model(s) utilized, as well as, the calculations of the peak discharge value prior and post development. Determine the design peak runoff rate for a 10 -year return period storm and provide detention storage design plans to reduce the predicted peak discharge to the pre -development value. All documentation, calculations, and detention storage design (2 plan copies) shall be submitted for review and approval to the satisfaction of the City Engineer prior to acceptance of plans for building plan check. Prior to final inspection, a letter shall be submitted from the project engineer stating that the detention storage design improvements were installed as shown on the approved plans and in accordance with their recommendations. 16. Any, and all, changes to the approved grading and drainage plan shall be submitted as revisions from the project engineer and shall first be approved by the Town Engineering Department. No grading shall take place during the grading moratorium (October 15 to April 15) except with prior approval from the City Engineer. No grading shall take place within ten feet of any property line except to allow for the construction of the driveway access. 17. All public utility services serving this property shall be placed underground. The applicant should contact PG&E immediately after issuance of building permit to start the application process for undergrounding utilities which can take up to 66=8 months." 18. Two copies of an erosion and sediment control plan shall be submitted for review and approval by the Engineering Department prior to acceptance of plans for building plan check. The contractor and the property owner shall comply with all appropriate requirements of the Towels NPDES permit relative to grading and erosion/sediment control. The first 100 feet of the driveway shall be rocked during construction and all cut and fill slopes shall be protected from erosion. All Planning Commission Lands of Liu February 5, 2009 Page I1 areas on the site that have the native soil disturbed shall be protected for erosion control during the rainy season and shall be replanted prior to final inspection. 19. Two copies of a grading and construction operation plan shall be submitted by the property owner for review and approval by the City Engineer and Planning Director prior to acceptance of plans for building plan check The grading/construction operation plan shall address truck traffic issues regarding dust, noise, and vehicular and pedestrian traffic safety on Ursula Lane and surrounding roadways, storage of construction materials, placement of sanitary facilities, parking for construction vehicles, clean-up area, and parking for construction personnel. A debris box (trash dumpster) shall be placed on site for collection of construction debris. Arrangements must be made with the GreenWaste Recovery, Inc. for the debris box, since they have a franchise with the Town and no other hauler is allowed within the Town limits. 20. The property owner shall dedicate a 10' wide pathway easement along the west property line to the Town. The property owner shall provide a legal description and plat exhibits that are prepared by a registered civil engineer or a licensed land surveyor and the Town shall prepare the dedication document. The dedication document, including the approved exhibits, shall be signed and notarized by the property owner and returned to the Town prior to submittal ofplans for building plan check. 21. The property owner shall construct a native pathway through the property connecting Ursula Lane to Edgerton Road. Two copies of a pathway improvement plan shall be submitted by the property owner for review and approval by the City Engineer prior to acceptance ofplans for building plan check, and the pathway must be installed to the satisfaction of the Engineering Department prior to final inspection. 22. The driveway shall be required to be fully constructed and to be roughened where the pathway intersects, to the satisfaction of the City Engineer, prior to final inspection. 23. The property owner shall inform the Town of any damage and shall repair any damage caused by the construction of the project to pathways, private driveways, and public and private roadways, prior to final inspection and release of occupancy permits and shall provide the Town with photographs of the existing conditions of the roadways and pathways prior to acceptance ofplans for building plan check 24. A permit for a septic system shall be issued by the Santa Clara County Health Department prior to acceptance of plans for building plan check. All conditions of the Santa Clara County Health Department shall be met prior to final inspection. Planning Commission Lands of Liu February 5, 2009 Page 12 25. The property owner shall dedicate a 30' wide half -width public right-of-way to the Town over Edgerton Road and Black Mountain Road. The property owner shall provide legal description and plat exhibits that are prepared by a registered civil engineer or a licensed land surveyor and the Town shall prepare the dedication document. The dedication document, including the approved exhibits, shall be signed and notarized by the property owner and returned to the Town prior to submittal of plans for building plan check. 26. Geotechnical Engineering Investigation - The applicant's geotechnical. consultant should complete the geotechnical engineering investigation of the subject property and submit the final report prior to issuance of building permit. As part of this investigation, the consultant should evaluate areas in the vicinity of the proposed improvements underlain by surfrcial materials (e.g., fill, colluvium, and alluvium), and provide geotechnical design recommendations for all proposed improvements. The investigation should include, but not necessarily limited to, the following: a) Subsurface conditions should be investigated and representative earth materials (i.e. bedrock, colluvium/alluvium, artificial fill, etc.) should be sampled and tested to provide an engineering basis for recommended geotechnical design criteria. b) Geotechnical design criteria and recommendations should be provided, including but not limited to recommendations for: site grading, foundations for proposed structures and walls (including stability of temporary basement cuts), uplift forces in areas of expansive soil and bedrock materials (if applicable), surface and subsurface drainage improvements, and mitigation options for any recognized fill materials and expansive earth units. Design criteria for restrained walls should be addressed. c) Recommendations should be provided for a capillary break system beneath slab -on -grade floors and the potential need for an axial subdrain beneath the basement floor should be considered. d) The consultant should evaluate the apparent geotechnical suitability of the proposed septic leach field including the potential for surfacing of effluent or adverse slope stability impacts. e) 2007 CBC seismic design parameters should be provided for use by the structural engineer in the design of the residence. 27. Geotechnical Plan Review - The applicant's geotechnical consultant shall review and approve all geotechnical aspects of the project building and grading plans (i.e., site preparation and grading, site drainage improvements and design parameters for foundations) to ensure that their recommendations have been properly incorporated. Planning Commission Lands of Liu February 5, 2009 Page 13 The results of the Geotechnical Plan review shall be summarized by the geotechnical consultant in a letter and submitted to the Town Engineer for review prior to buildingpermit issuance. 28. Geotechnical Field Inspection - The geotechnical consultant shall inspect, test (as needed), and approve all geotechnical aspects of the project construction. The inspections shall include, but not necessarily be limited to: site preparation and grading, site surface and subsurface drainage improvements, and excavations for foundations and retaining walls prior to the placement of steel and concrete. The results of these inspections and the as -built conditions of the project shall be described by the geotechnical consultant in a letter and submitted to the Town Engineer for review prior to final inspection (granting of occupancy). FIRE DEPARTMENT 29. Provide an approved fire department engine driveway turnaround with a minimum radius of 36 feet outside and 23 feet inside. Installations shall conform with Fire Department Standard Details and Specifications D-1. 30. Provide an access driveway with a paved all weather surface, a minimum unobstructed width of 14 feet, a vertical clearance of 13 feet 6 inches, and a minimum circulating turning radius of 36 feet outside and 23 feet inside. 31. An automatic residential fire sprinkler system approved by the Santa Clara County Fire Department shall be included in all portions of the building. Three sets of plans prepared by a sprinkler contractor shall be submitted to the Santa Clara County Fire Department (14700 Winchester Blvd., Los Gatos, CA 95032) for review and approval. The sprinklers shall be inspected and approved by the Fire Department, prior to final inspection and occupancy of the new residence. 32. The project is located within the designated Wildland-Urban Interface Fire Area. The building construction shall comply with the provisions of California Building Code (CBC) Chapter 7A. Note that vegetation clearance shall be in compliance with CBC Section 701A.3.2.4 prior to final approval. Check with the Planning Department for related landscape plan requirements. 33. Emereencv Gate/Access Gate Requirements: Gate installations shall conform with Fire Department Standard Details and Specification G-1 and, when open shall not obstruct any portion of the required width for emergency access roadways or driveways. Locks, if provided, shall be fire department approved prior to installation. Planning Commission Lands of Liu February 5, 2009 Page 14 34. Premises Identification: Approved numbers or addresses shall be placed on all new and existing buildings in such a position as to be plainly visible and legible from the street or road fronting the property. Numbers shall contrast with their background. NOTE: the current address on Edgerton Road must be changed to Ursula Lane to allow for proper and timely emergency response. Upon completion of the construction, a final inspection shall be required to be set with the Planning and Engineering Departments two weeks prior to final building inspection approval. CONDITION NUMBERS 13, 14, 15, 18, 19, 20, 21, 23, 24, AND 25 SHALL BE COMPLETED AND SIGNED OFF BY TOWN STAFF PRIOR TO ACCEPTANCE OF CONSTRUCTION PLANS FOR PLAN CHECK BY THE BUILDING DEPARTMENT. NOTE: The Site Development permit is valid for one yew from the approval date (until February 5, 2010). All required building permits must be obtained within that yew and work on items not requiring a building permit shall be commenced within one year and completed within two years. TOWN OF LOS 26379 Fremont Road Los Altos Hills, CA 94022 Phone: (650) 941-7222 �.losaltoshil Is.ca.gov Code Sections: ALTOS HILLS Attachment 2 Grading Policy Approved by City Council -412197 Section 10-2.7020 of the Site Development Ordinance states that: "The amount of grading, excavation, or fill shall be the minimum necessary to accommodate proposed structures, unless grading is proposed to lower the profile of buildings." Section 10-2.703(a) requires: "Type II foundations - step -on -contour, daylight, pole foundations, or a combination thereof - shall be used on building sites with natural slopes in excess of fourteen percent (14%)." Intent• The purpose of this policy is to outline desired criteria for grading which assure that construction retains the existing contours and basic landform of the site to the greatest extent feasible. It is also intended that the policy provide guidance for "stepping" structures down sloped hillsides, and emphasizes cut to lower the profile of structures over fill or foundation walls, which tend to raise the profile of the structure. While balanced cut and fill is desirable to minimize import or export of soil, to or from a site, it is recognized that the Town's policies and the guidelines below may encourage export m cut is generally preferred over fill. These policies are intended to be used by staff in evaluation and maldng recommendations to the Planning Commission and/or City Council regarding site development applications, and as guidance for applicants. Individual sites may dictate a need to deviate from the criteria, to the extent permitted by the Planning Commission and/or City Council. - Grading Policy Page 2 Polic : Cuts and fills in excess of the following levels generally will be considered excessive and contrary to Town ordinances and policies to grade only to the minimum extent necessary to accommodate structures and to site structures consistent with slope contours, i.e., "step down" the hill*: Cut Fill House 8'** 3' Accessory Bldg. 4' 3' Tennis Court 6' 3' Pool 4'*** 3' Driveways 4' 3' Other (decks, yards) 4' 3' * Combined depths of cut plus fill for development other than the main residence should be limited to 6 feet, except that for tennis courts cut plus fill may be permitted up to a maximum of 8 feet. ** Excludes basements meeting Code definition. *** Excludes excavation for pool. 2. The height of the lowest finished floor(s) of a structure should generally not be set in excess of three (3) feet above the existing grade, to assure that structures step with the slope. 3. Driveway cut may be increased up to a maximum of eight feet (8) for the portion of the driveway or backup area which is adjacent to a garage that has been lowered with a similar amount of cut. 4. Cut and/or fill for drainage shall be limited consistent with the guidelines set forth above for each type of structure, but shall be the minimum grading needed for drainage purposes, as determined by the City Engineer. Environmental —esign and Protection Committee New Residence/Remodel Evaluation Reviewed by: c��-- Applicant Name L.. l u + Address CCiCery42 di`zs�-c,� VF-ikiQ�> Site impact/lighting/noise: Attachment 3 Date% I L cam. Existing Vegetation: / '1♦R n � Significant issues/comments: PATHWAYS C.Ol I t I I ! T EEL 110 Attachment 4 was referred to Town staff to answer his questions about specifications for path construction. iv. 12244 Windsor Court (Lands of Somasundaram). Windsor Court is a cul-de-sac off Black mountain Road; it serves only five properties. This property is a flag lot off the north side of Windsor Court and also has a border along Natoma. An existing path on the property along Natoma needs maintenance. The Town may not ask for a pathway in -lieu fee because a pathway already exists on a property. Courtenay Corrigan moved that the homeowners be asked to restore and bring up to IIB standards the existing pathway along Natoma. Jolon Wagner seconded. The vote was unanimously in favor. v. 26680 Plena Road (Lands of Parikh). Tom Mope, landscape architect, was present representing the owners. The property is on the west side of Elena at the intersection with Robleda Road. The opposite side of Elena is the preferred side for a roadside pathway. Chris Vargas moved that the Town request a pathway in -lieu fee from the owners of 26880 Dena Road. Courtenay Corrigan seconded. The vote was unanimously in favor. vi 14300 Miranda Road (Lands of Udinsky). The property is on the east side of Miranda at the comer of Miranda and La Larne Court A pathway exists on the opposite side of Miranda. Although Miranda is not designated in Resolution 36-96 (May 1996), as one of the Town roads that requires paths on both sides, Miranda is a major feeder to Bullis School and is heavily used by residents. Chris Vargas moved that the PWC request a IIB on 14300 Miranda Road along Miranda Road. Courtenay Corrigan seconded. The vote was unanimously in favor. It was also suggested that the PWC review and update the list of "two-sided roads" and propose a revised list to City Council for approval vii 13330 Burke Road (Lands of SoIbmzad). The property is on the east side of Burke Road across from the intersection with Chapin Easement maps show that the Town already holds a pathway easement along Burke on this property. A well-maintained pathway exists on the opposite side of Burke Road. A pathway was not required along Burke on the adjacent property (13241 Burke) and this part of Burke is not heavily used. Nick Dunckel moved that the PWC ask the Town to verify that an easement exists along Burke on 1330 Burke Road and if it does exist, to require the homeowner to show it on his maps. If an easement does not exist, a pathway in -lieu fee is required from the owner. Courtenay Corrigan seconded. The vote was unanimously in favor. �jp viii 27755 Edgerton Road (Lands of Liu). The property is on the west side of Edgerton Road between Edgerton and Ursula. The homeowners plan to site the house close to Ursula Lane, which will provide access. The 2005 Master Path Plan shows an off-road pathway through this property connecting Edgerton and Ursula. This off-road path provides an important connection between Town open space in Byrne Preserve and the pathway from Edgerton along Matadero Creek, which has been designated a Scenic Pathway and i- frequently used by equestrians. Because of the terrain, a native path rather that a IIB path is appropriate. Bill Silver moved that a pathway easement on 27755 Edgerton Road be dedicated to the Town and that the homeowners be required to install a native path through the property connecting Ursula to Edgerton Road The location of the pathway on the property may be at the discretion of the owners. XX seconded and the vote was unanimously in favor. It was also suggested that the Town install posts at each end of flus pathway to mark the path. DraftPWC Min 082508 10/15/OB e}�Pct coG Flhi, DEPARTMENT RECEIVED v Attachments TY SANTA CLARA COUNTY OCT d 3 2008 14700 Winchester Blvd., Los Gatos, CA 95032-1818 d::,.n�•` (408) 378-4010 • (408) 378-9342 (fax) a G .sccfd.org TOM OFLOS ALTOS HILI.$m.,,,enon.ly nu 1 ASmN PLAN Ru. HN®ER 0 8 2 S 16 BLDG PERMn NVYSER DEVELOPMENT REVIEW COMMENTS FRE NUMBER CODESEC. I SHEET REOLUREMEM plan only for 27300 Urusula(formerly 27755 Edgerton). Review of this Developmental proposal is limited to acceptability of site access and water supply as they pertain to fire department operations, and shall not be construed as a substitute for formal plan review to determine compliance with adopted model codes. Prior to performing any work the applicant shall make application to, and receive from, the Building Department all applicable construction permits. The driveway exceeds the County Fire Standard for grade, but is accepted by County Fire after review by the Division Chief. Plans approved. Any changes to this approved plan must be approved, in advance and in writing, by this office. qly pIAMS SPECS NEW RMDL /S CCCVPAHCI CDHST. TYPE AppIRaMNama DATc pPGE GIULIANI & KULL INC 10/1/2008 ? 1 LAH ® ❑ ® ❑ ❑ or CECJFLOOfl RRFA LOAD DESCRIp110N � grading only Residential Development Harding, Doug NPME OF pflOJECT LOCATION SFR 27300 Ursula Ln Organized as the Santa Clara County Central Fire Protection District Serving Sant. Clam Cuanty and the wmmunities q Campbell, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Monte Sereno, Morgan Hill, and Samtogo �P°L"n'ooL HkE DEPARTMENT f'ECEVED �a SANTA CLARA COUNTY ocr3 14700 Winchester Blvd., Los Gatos, CA 95032-1818 120$ (408) 378-4010 • (408) 378-9342 (fax) • wwwsccfd. * NOFLOS ALjDs W8 DEVELOPMENT REVIEW COMMENTS CDDESEC. FC Sec. 03.2, as dopted nd mended V LAHMC SHEET REQUIREMENT I .n.mr mw,.Bowy ArvaNm Ape,cy Fl AN RE VIEW NUMBER 08 .3010 BLDG PERM? NUMBER FILE NUMBER 1 ;n review of proposed new 4,976 squre foot 2 story single family residence attached garage. Review of this Developmental proposal is limited to acceptability of site access and water supply as they pertain to fire department operations, and shall not be construed as a substitute for formal plan review to determine compliance with adopted model codes. Prior to performing any work the applicant shall make application to, and receive from, the Building Department all applicable construction permits. This project is located within the designated Wildland-Urban Interface Fire Area. The building construction shall comply with the provisions of California Building Code (CBC) Chapter 7A. Note that vegetation clearance shall be in compliance with CBC Section 701A.3.2.4 prior to project final approval. Check with the Planning Department for related landscape plan requirements. 2 Fire Sprinklers Required: Approved automatic sprinklers are required in all new and existing modified buildings when gross floor area exceeds 3,600 square feet or that are 3 or more stories in height. Exception:One-time additions to existing buildings made after 01 / 01 / 2008 that do not exceed 500 gross square feet.An automatic sprinkler shall be provided in all new structures located in the designated Wildland-Urban Interface area. A State of California licensed (C-16) Fire Protection Contractor shall submit plans, calculations, a completed permit application and appropriate fees to this department for review and approval prior to beginning their work. CN PIANS SPECS NEW RMOL AS OCCWANCY CONET.TYPE APCObnU.me DATE PAGE -AH ® ❑ ® ❑ ❑ R-3 V -B CHU DESIGN & ENGINEERING 20/23/2008 1 2 OF (EChLOOR AIIFA LUAU DESCRIPTION SY :story 4976 sf Residential Development Harding, Doug NAME OF PRWECTLOCATION SFR - LIU 27755 Edgereton Rd Organized as the Santa Clara County Central Fire Protection District Serving Santo Clam County and the communities of Campbell, Cupertino, Los Altos, Los Altos Hills, Los Gatos, Monte Sereno, Morgan Hill, and Samtoga FIkE DEPARTMENT SANTA CLARA COUNTY 14700 Winchester Blvd., Los Gatos, CA 95032-1818 (408) 378-4010 • (408) 378-9342 (fax) • vww.sccfd.org DEVELOPMENT REVIEW COMMENTS CDDUSEC. I SNEET I NO.I REQUIREMENT CFC CFC Sec. CFC Sec. AD, PIAN AV.. NUMBER 0 8 3 01 0 BLDG PEANUT NUMBER ABLE NUMBER 3 Fire Apparatus (Engine)Access Driveway Required: Provide an access driveway with a paved all weather surface, a minimum unobstructed width of 14 feet, vertical clearance of 13 feet 6 inches, minimum circulating turning radius of 36 feet outside and 23 feet inside, and a maximum slope of 20%D. Installations shall conform to Fire Department Standard Details and Specifications sheet D-1. Non-standard slope approved under separate application. =oartment (Engine) Driveway Tum -around Required: Provide an ned fire department engine driveway turnaround with a minimum radius of outside and 23 feet inside. Installations shall conform with Fire Department rd Details and Specifications D-1. Turn -around as shown appears to be in uses Identification: Approved numbers or addresses shall be placed on all and existing buildings in such a position as to be plainly visible and legible . the street or road fronting the property. Numbers shall contrast with their eround. Noted on Plans, ent plan review and inspection delays, the above noted Developmental Conditions shall be addressed as "notes" on all pending and future plan als and any referenced diagrams to be reproduced onto the future plan LAH 0 E N❑❑ I R-3 I V -B I CHU DESIGN & ENGINEERING 110/23/20081 2 DR 2 2 story 14976 sf Residential Development Harding, Doug SFR - LIU 27755 Edgereton Rd Organized as the Santa Clara County Central Fire Protection District Seining Santa Clam County and the commUNt. of Campbell, Cupertino, los Altos, Los Altos Hills, Los Gatos, Monte Sereno, Morgan Hill, and Somtogo 4n--3/2008 a . enon: e.: r.—a 3Wn9 P' - 008 Attachment 6 Apr 22 BB M52p Kevin Kielty 650-:. -143! Alffiffit dMIM RE0EIVEu. 16McClenahan Consulting, LLC Arborkdtarists since 19U , I A 4"dem ama. tmtom Valle); en M284012 lmepbme (650)3]b87d1 TOWN OF LOS ALTOS HILLS Fax (650) 854-9.67 April 22, 2008 Mr. Tim McKeegan wv+wsptncclerWi P.O. Box 7216 San Carlos, CA 94070 Site: 27755 Edgerton, Los Altos Hills, CA Dear Mr. McKeegan, Assignment As requested, on Thursday, April 17, 2008,1 visited the above location, to inspect and comment on the significant trees that may be impacted by the proposed construction. A new home is to be built on this site. As requested, a survey of the significant trees on site Md a tree protection plan will be included in this report summary The trees on the site that may be affected by the proposed construction are all native oaks. The site is heavily treed with the oaks growing in a crowded grove. This is quite common for native oaks that have not been disturbed. The oaks on the site are in fair to good condition with no excelleat trees. Poison oak has taken over the property and is in the canopies of many of the oaks. The proposed construction will require the removal of several of the oaks. The removed oaks will be replaced at a rate and size to be determined by the town planning. The remainder of the oaks, with proper tree protection will have minor to moderate impacts ton their root woes and canopies. Methodology The lot was inspected from the ground. The trees were located on a map provided by you. Each tree was assigned an identification number. This number was inscribed on a metal foil tag and nailed to the tree new the ground. The trees were then measured for diameter at 54 inches above ground level (DBH or diameter at breast height). A condition rating of 1 — 100 was assigned to each tree representing fomt and vitality using the following scale: 1 - 29 Very Poor 30 - 49 Poor 50 - 69 Fair 70 - 89 Good 90 - 100 Excellent 4/23/2008 7 hM FXC : Fax Terrace Associates S0: 3697339 P 002 OF 010 v,yi zz o0 os,ozy Kr"' rcimry ow .iws p.z 27755 Ed-enm, Los A hos Hills, CA A0122, 2008 The height of each tree was estimated and the spread was paced off. The location of each tree was described. Lastly, a comments section is provided. Due to the abundance of poison oak many of the trees were not tagged and their DBH was estimated. Tree Description/Observation 1: Valley oak (Quercus lobos) Diameter: 38.1' Height: 35' Spread: 60' Condition: 60- Fair Location: In front near Ursula. Observation: Root czowu is buried by 2' and has been exposed Some decay from old large cuts, Good vigor. - 2: Blue oak (Quercus Douglasir) Diameter. 25.9" Height: 35' Spread: 45' Condition: 65 -Fair Location: Near Ursula at entrance to neighbors' property. Observation: Multi leader at 4', good vigor and fair form. 3: Blue oak (Quercus Douglasil) Diameter: 22.3" Height: 45' Spread: 40' Condition: 75 - Good Location: Near Ursula at entrance to neighbor's property. Observation: Good form and vigor, at edge of neighbor's drive. 4: VaUey oak(Quercur 7obara) Diameter: 36"est. Height-. 45' Spread: 65' Condition: 60- Fav Location: Near chain link fence, new south property line. Observation: Codominant at 4' with included bark. 5: Valley oak (Quercus lobata) Diameter- 20"esL Height: 35' Spread: 40' Condition: 60- Farr Location: Westproperty line. Observation: Codominant, poison oak to 25'. Good vigor. 1 ARASTR4nea0 ROAD, IOftrOLA V,4IliY, CA 94926-8012 a ML(650)316-8781 a M (650) 854-1167 9C �Rh/ NR'LENAHANCONNLTLNC, LLC1gn www.spmcclmeha\mm 4/23/2008 l:" W FRM: Fax Terrace Axsociates TU: 3697339 FD^' 003 CF 010 qNl cG VO VJ.J[N nevlll nIUILY OJV-: 19JJ 27755 Edgeram, Los Altos Hills, CA April 22, 2008 6: Valley oak (Quercus lobata) Diameter: 16"est Height 30' Spread: 25' Condition: 55- Fair Location: Soutb side of lot Observation: Foliage is sparse, form is fair, heavy lateml limbs. 7: Coast live oak (Quercus agrifolra) Diameter: 20"est. Height: 35' Spread: 30' Condition: 60- Fair Location: West property line. Observation: Vigor is good form is fair, poison oak on trunk. 8: Coast live oak (Quercus agrifolia) Diameter- 12-14-14"est. Height 35' Spread: 35' Condition: 55- Fair Location: Center of property. Observation: Multi leader at base, good vigor. 9: Valley oak (Quercus lobata) Diameter: 12-15"est Height: 40' Spread: 45' Condition: 65- Fair Location: Center of lot Observation: Codominant at base; good vigor. 10: Coast live oak (Quercus agrifolia) Diameter: 12-18'est. Height 35' Spread: 30' Condition: 60- Fair Location: Center ofproperly- Observation; Good vigor, poison oak on trunk. 11: Blue oak (Quercus Douglasir) Diameter- 20"est Height 40' Spread: 35' Condition: 70 - Good Location: Center of lot Observation: Good form and vigor; poison oak on trunk. I A STRAD5RO ROAD, PORMO VALLe T, CA 94026-6012 • in (55Q)M6-&7&1 a M (69) 8544267 OC,rM&MaC AH4NCOAWUL7rA LLc2008 wLvw.ipm¢Icnalw.mm 9/23/2008 . FROM: Fax Te[[ece Aaaociatev TO: 1591339 : 001 Or 010 Apr 22 08 09:52p Kevin Kielty 650--p-1439 p.4 27755 Edgerton, Los Altos Hills, CA April 22, 2008 12: Coast live oak (Quercus agrifoiia) Diameter: 12"est. Height: 15' Spread: 20' Condition: 55- Fair Location: Center of property. Observation: Suppressed; heavy to the east. 13: Blue oak (Quercus Douglash) Diameter. 12-12"est. Height: 35' Spread: 30' Condition: 60 - Fair Location: Center of lot Observation: Tall for DBH; upright, suppressed. 14: Blue oak (Quercus Douglasii) Diameter: 12-12"est Height: 35' Spread: 30' Condition: 70 - Good Location: Center of lot Observation: Multi leader at 6' 15: Blue oak (Quercus Douglasii) Diameter: 14.2". Height: 30' Spread: 25' Condition: 75 - Good (.ovation: Center of lot. Observation: Good form and fair vigor; leans south 16: Blue oak (Quercus Dougiosii) Diameter. 18"est. Height: 30' Spread: 20' Condition: 60 - Fair Location: Center of lot Observation: Good vigor and fair form. 17: Coast Live oak (Quercus agrifolia) Diameter: 18"est Height: 30' Spread: 25' Condition: 60- Fair Location: Center of property. Observation: Codominant ai 4'; vigor is fair. 1 ARASTRADEROROAD,PORTOLAVALLEY,O.A 9/0269012 TEL (650)326-9791 PAX (650) 8541267 eL'opyrigM AlcCUNAHANCONSULTINa. LLC2W uw:...apmccleneM1an.�os 1/23/2M 1:" `M nol,: F.. Terrace luso—I- TO: 3691339 ?Y— 005 SOF 010 Apr 22 05 09'.53p Kevin Kielty 650 1439 p.5 27755 Edgerton, Los Altos Hills, C.4 Apul 22, 2006 1S: Valley oak (Quercus lobata) Diameter: 14"est. Height: 25' Spread: 20' Condition: 60- Fair Location: Center of lot. Observation: Suppressed. 19: Coast live oak (Quercus agrifolia) Diameter: 12"est. Height: 40' Spread: 35' Condition: 60- Fair Location: Center of property. Observation: Codominant at 4'; form is good; vigor is fair. 20: Coast live oak (Quercus agrifolia) Diameter: 26"est. Height 35' Spread: 40' Condition: 60- Fav Location: Center of property. Observation: Vigor is fair, form is good. 21: Valley oak (Quercus lobata) Diameter. 22"est. Height 35' Spread: 30' Condition: 50- Fair Location: Center of IOL Observation: A large codominant bas failed years ago. 22: Coast live oak (Quercus agrifolia) Diameter; 12"est. Height: 40' Spread: 20' Condition: 55- Far Location: Center of property. Observation: Suppressed; trunk leans south then upright. 23: Coast live oak (Quercus agrifolia) Diameter: 19.1". Height: 40' Spread: 30' Condition: 60- Fair Locatioo: Center of property. Observation: Codominant at 5' Aith poor crotch formation; vigoris fair. I ARAE H ADERO ROAD, MRTO6 VALLEY. CA 94e28-8012 • TEL (650)326-9781 • F.4%(6!0) 6541267 OCoppiglu Addrl'NAH�NCpNSUlT7Nq LLC2008 aww.spmvJrnlnn.wm 1/13/200b t . FAO.: Fas Te[[e[e Aasod a[ee S0: 3691339 'E: 006 OP 010 Apr ZZ Up VU:DSp Kevm Kelly cc. -LS -1438 p.6 27755 Edgerton, Los Altos tells, CA April 22, 2008 24: Valley oak (Quercus lobata) Diameter: 18"est. Height: 45' Spread: 40' Condition: 60- Fair Location: Center of lot. Observation: Heavy to the south east; good vigor. 25; Blue oak (Quercus Douglasli) Diameter: 12"esL Height: 30' Spread: 35' Condition: 55 -Fair Location: Center of lot. Observation: Foliage thin; lack of vigor. 26: - Valley oak (Quercus lobala) Diameter: 28"est. Height: 45' Spread: 60' Condition: 65- Fair Location: South east sideof lot. Observation: Vigor is good form is fair; heavy lateral limbs. 27: Valley oak (Quercus lobala) Diameter: Best. Height: 35' Spread: 20' Condition: 55- Fair Location: Southeast side of lot. Observation: Suppressed by tree #26; poison oak on truck. 28: Coast live oak (Quercus agrifolia) Diameter: 24"est. Height 35' Spread: 40' Condition: 65 -Fair Location: Southeast side of property. Observation: Good vigor, form is fair. 29: Blue oak(Quercus Douglasir) Diameter. 301'est. Height: 45' Spread: 50' Condition: 80 -Good Location: Center of lot. Observation: Good vigor and foua; good crotch formations. I ARAS'.RADERO ROAD, PORTOIA VALLEY, CA 94028-M2 • TEL (650)3268181 a PAX(650)254-IX? eCoyrig/u AfcCLE.VAHANCO.NSUlTING, l.CC 1003 www.Sl�mccicnehen.mm 4/23...0' 1:'� M 1A : Fay. 1e .... e Axv Mia[u 10: 3691339 PAF—' 001 OF 010 Apr 22 08 09',53p Kevin Kielty 650-5. 439 p.7 27755 EdgMon, Los Albs Hills, CA April 22, 2008 30: Blue oak (Quercus Douglasil) Diameter: 15"est. Height: 35' Spread: 25' Condition: 60 - Fair Location: Southeastern side of lot. Observation: Vigor is fair, foliage is sparse; form is good. Poison oak on trur-L 31: Blue oak(Quercus Douglasil) Diameter. 14-14-14"est. Height'. 45' Spread: 35' Condition: 55 - Fair Location: South side of lot Observation: Multi at base; lack of vigor. 32: Blue oak(Quercus Douglasn) Diameter; 12':cst Height: 40' Spread: 20' Condition: 55 - Fair Location: Southside of lot. Observation: Suppressed by tree #33. 33: Blue oak (_Iuercus Douglxh) Diameter: 20"est. Height; 40' Spread: 20' Condition: 60 - Fair Location: South side of lot. Observation: Tall and narrow-, lack of vigor. 34: Blue oak (Quercus Douglassiz) Diameter: 9.0". Height: 25' Spread: 15' Condition: 55 - Fair Location: South side of lot Observation: Suppressed by tree #35. 35: Blue oak (Quercus Dmaglassiz) Diameter: 36"est. Height-- 45' Spread: 55' Condition: 65 - Fair Location: South side of lot. Obsemtion:.Abundance of lower deadwood. 1).R MADUROROAD, MRTOlA YAI.LUY, CA 94028-8012 • TEL (650) 326-6781. FAX (650) 6521261 9Cop h.MC L£NAHANCOHSULrlY ,IJ.CIOas wvWspmcclmelan,cmn 0/23/3001 1 . rAO; Fav 1-1... ksaociates M 3591339 :E: 006 OF 020 Apr 22 OB 08:53p Kevin Kielty 050-525-1435 p8 27755 Edgerton, Los Altos Uills, CA April 22, 2009 36: Blue oak (Quercus Douglassir) Diameter- 28"est.. Height: 40' Spread: 35' Condition: 60 - Fair Location: South side of lot. Observation: Suppressed by tree' 435. 37: Blue oak (Quercus Douglassii) Diameter. M'est. Height: 40' Spread: 40' Condition: 65 - Fair Location: South side of lot Observation: Good form; fair vigor. Tree Protection Plan Tree Protection Zones Tree protection zones should be installed and maintained throughout the entire length of the project Fencing for tree protection zones should be 6' tall, metal chain link material supported by metal 2" diameter poles, pounded into the ground to a depth of no less than 2'. The location for the protective fencing should be as close to the dripline of desired trees as possible, still allowing room for construction to safely continue. No equipment or materials shall be stored or cleaned inside the protection zones_ Areas outside protection zones, but still beneath the tree's driplines, where foot traffic is expected to be heavy, should be mulched with 4-6' of chipper chips. The spreading of chips will help to reduce compaction and improve soil structure. The installation of the landscape buffer of chips will be critical for the root cone of the oaks. Root Cutting Any roots to be cut shall be monitored and documented. Large roots (over 2" diameter) or large masses of roots to be cut must be inspected by the site arborist The site arborist, at this time, may recommend irrigation or fertilization of the root zone. All Hoots needing to be cut should be cut clean with a saw or topper. Roots to be left exposed for a period of time should be covered with layers of burlap and kept moist. Extensive mot cutting is not expected on this site. Irrigation The oaks on this site should not need any warm season irrigation. If roots of the trees are cur, irrigation may be recommended by the site arborist. Irrigation would consist of flooding the root zone with enough water to wet the entire root area 1 .4RASTRADERO ROAD, rMTOLA VALLEY. CA 94028-8012 • TEL (650)32&9791 • FAX (630) 8541267 OCopyiib"Vf McCIEA!atiRN CONSVLr1A'G, t.LC:00E umwspmslenaFm,.com 4/23/200B ]:P '4 PAM: Faz Terrace Associates TO: 3697339 PAC^ 009 OF O]0 „yi " oo O,' vP Nevin Nieiry oara w,9 N.e 27755 Edgenon Los .Altos Hills, CA Ap6122, 20C-8 Trenching Trenching for irrigation, drainage, electrical or any otherreason shall be done by hand when inside the dripline of a protected tree. Hand digging and the careful placement of pipes below or besides protected roots will significantly reduce root loss, thus reducing trauma to the tree. All trenches shall be backfilled with native materials and compacted to near its original levet, as soon as possible. Trenches to be left open for a period of time, will require the covering of all exposed roots with burlap and be kept moist The trenches will also need to be covered with plywood to help protect the exposed roots. The information included in this report is believed to be true and based on sound arboricultural principles and practices. We thank you for the opportunity to be of assistance in your tree preservation concerns. Should you have any questions, or if we can be of further assistance in these concerns, kindly contact our office at any time. Very truly yours, McCLENAHAN CONSULTING, LLC By: Kevin R. Kielty Certified Arborist, WE -0476A Member, American Society of Consulting Arborists I ARASi ERO ROAD. PORiDLA VALLEY, CA 940284012.M(650)326878[ • FAX(650)854-1267 CCo�yriBA, McCLEVAHANCONSGLTIA'G, LLC 2Wa xww.symcckvelwi.rom Attachment 7 COTTON, SHIRES & ASSOCIATES, INC. nnmquLTING ENGINEERS AND GEOLOGISTS August 6, 2008 L0178 TO: Brian Froelich Assistant Planner TOWN OF LOS ALTOS HILLS 26379 Fremont Road Los Altos Bills, CA 94022 SUBJECT: Geotechnical Peer Review RE: Liu, New Residence 166-08-ZP-SD-GD 27755 Edgerton Road At your request, we have completed a geotechnical peer review of the subject application for the proposed new residence, using: • Geotechnical Investigation — Progress Report prepared by Millstone Geotechnical, dated June 11, 2008; • Engineering Geologic Investigation (report) prepared by Steven F. Connelly, C.E.G., dated May 9, 2008; • Conceptual Grading and Drainage Plan (1 sheet, 20 -scale) prepared by Giuliani & Kull, Inc., dated June 11, 2008; and • Architectural Plans (8 sheets, various scales) prepared by Chu Design & Engineering, Inc., dated June 16, 2008. In addition, we have reviewed pertinent technical documents from our office files and completed a recent site inspection. DISCUSSION Based on our review of the referenced documents, the applicant proposes to construct a new residence with partial basement, septic leachfield system, and Notlham Califomia Office "•� `��••• .,...,. 330 Village Lane 6417 San Mdxeas, 209524DA 95249-9640 Road Los Gatos, C 95030-7218 (408)354-5542 • Fax (408) 359-1852 (e -m fl. cou 2 • Fax (2097 and. at e mailaosgatos®cononshives.com www.co ttonshire s.com a -mail: cottonshivesC stavband.net Brian Froelich August 6, 2008 Page - L0178 associated residential improvements. We were provided with estimated earthwork quantities of 1,915 cubic yards of cut and 430 cubic yards of fill, with a total export of 1,485 cubic yards of material. Access to the property is provided via a private driveway extending from Ursula Drive in the southwestern portion of the property. SITE CONDMONS The subject property is generally characterized by a gentle to moderately steep north -trending ridgeline, flanked by moderately steep to very steep northeast- and northwest -facing flanks. Seasonal drainage swales exist along the western and eastern property lines..Edgerton Road runs along the base of the slope north of 'he proposed building envelope. Cut slopes adjacent to Edgerton Road may be subject to shallow sloughing but these area appear to adversely impact the proposed house site. The site was undeveloped at the time of our recent site visit. Natural drainage at the site consists of sheetflow toward the northwest and northeast into the existing drainage swales. According to the Town Geologic Map, the subject property is underlain by greenstone bedrock of the Franciscan Complex. According to the exploratory boring logs presented in the referenced geotechnical investigation, weathered greenstone bedrock is overlain by 4 to 7 feet of colluvial materials in the vicinity of the proposed building envelope. The nearest traces of the potentially active Monta Vista, Berrocal, and Altamont faults are mapped approximately 400 feet north, 1,650 southeast, and 2,200 feet south of the subject property, respectively. According to the Town Geotechnical Hazards Map, the property is located within the boundaries of a "D" zone, classified as a zone of potential ground deformation and surface rupture within 660 feet of the trace of a potentially active fault. Additionally, the active San Andreas fault is located approximately 2.7 miles southwest of the site. CONCLUSIONS AND RECOMMENDED ACTION The proposed development is potentially constrained by anticipated strong seismic ground shaking, expansive colluvium, and shallow downslope creep of surficial materials. The Project Geotechnical Engineer and Engineering Geologist have performed recent investigations of the property and provided preliminary geotechnical design recommendations for the proposed development which, generally, appear to be appropriate for the identified site conditions. COTTON, SHIRES & ASSOCIATES, INC. Brian Froelich Page 3 August 6, 2008 L0178 We do not have geotechnical objections to the layout and recommended design criteria for the proposed improvements. We recommend that the following conditions be attached to applications for site improvements: I. Geotechnical Engineering Investigation - The applicant's geotechnical consultant should complete the geotechnical engineering investigation of the subject property and submit the final report. As part of this investigation, the consultant should evaluate areas in the vicinity of proposed improvements underlain by surficial materials (e.g., fill, colluvium, and alluvium), and provide geotechnical design recommendations for all proposed improvements. The investigation should include, but •- ;act necessarfly be limited to, the following: - Subsurface conditions should be investigated and representative earth materials (i.e., bedrock, colluvium/alluvium, artificial fill, etc.) should be sampled and tested to provide an engineering basis for recommended geotechnical design criteria. Geotechnical design criteria and recommendations should be provided, including but not limited to recommendations for: site grading, foundations for proposed structures and walls (including stability of temporary basement cuts), uplift forces in areas of expansive soil and bedrock materials (if applicable), surface and subsurface drainage improvements, and mitigation options for any recognized fill materials and expansive earth units. Design criteria for restrained walls should be addressed. Recommendations should be provided for a capillary break system beneath slab -on -grade floors and the potential need for an axial subdrain beneath the basement floor should be considered. The consultant should evaluate the apparent geotechnical suitability of the proposed septic leachfield including the potential for surfacing of effluent or adverse slope stability impacts. . COTTON, SHIRES & ASSOCIATES, INC. Brian Froelich Page 4 August 6, 2008 L0178 2007 CBC seismic design parameters should be provided for use by the structural engineer in the design of the residence. The results of this investigation should be summarized by the Project Geotechnical Consultant in a report, with appropriate drawings, and submitted to the Town for review and approval by the Town Engineer and Town Geotechnical Consultant prior to acceptance of documents for building perudt plan -check. 2. Geotechnical Plan Review - The applicant's geotechnical consultant should review and approve all geotechnical aspects of the project building aid grading plans (i.e.; site preparation and grading, site drainage improvements and design parameters for foundations) to ensure that their recommendations have been properly incorporated. The results of the Geotechnical Plan Review should be summarized by the geotechnical consultant in a letter and submitted to the Town Engineer along with documents for building permit plan -check. Geotechnical Field Inspection - The geotechnical consultant should inspect, test (as needed), and approve all geotechnical aspects of the project construction. The inspections should include, but not necessarily be limited to: site preparation and grading, site surface and subsurface drainage improvements, and excavations for foundations and retaining walls prior to the placement of steel and concrete. The results of these inspections and the as -built conditions of the project should be described by the geotechnical consultant in a letter and submitted to. the Town Engineer for ieview prior to final (as -built) project approval. LIMITATIONS This geotechnical peer review has been performed to provide teduical advice to assist the Town with discretionary permit decisions. Our services have been limited to review of the documents previously identified, and a visual review of the property. Our opinions and conclusions are made in accordance with generally accepted principles COTTON, SHIRES & ASSOCIATES, INC. Brian Froelich Page 5 August 6, 2008 L0178 and practices of the geotechnical profession. This warranty is in lieu of all other warranties, either expressed or implied. TS:DTS:JS:kd Respectfully submitted, COTTON, SHIRES AND ASSOCIATES, INC. TOWN GEOTECHNICAL CONSULTANT Ted Sayre Principal Engineering Geologist CEG 1795 � David T. Schrier Principal Geotechnical Engineer GE 2334 COTTON, SHIRES & ASSOCIATES, INC. Attachment 8 December 15, 2008 TO: David Keyon, Associate Planner FROM: John Chau, Assistant Engineer RE: McKeegan Residence 27755 Edgerton Road File# 166-08-ZP-SD-GD New Residence At your request, the Engineering Department has completed its review of the subject property's site development plan using: Conceptual Grading and Drainage Plan prepared by Giuliani & Kull, Inc. dated December 10, 2008 and received December 11, 2008. RECOMMENDED ACTION: Based on our review of the referenced plans, it appears that the project engineer and designer have generally not met all the requirements of the Engineering Department. The applicant understands that the proposed project is not in conformance with the Town's grading policy and is requesting that the project be considered in its current state. The project does not conform to the grading policy as follows: a) Up to 8' of cut is proposed for the patio. b) Up to 10' differential between existing grade and proposed finish floor elevation. c) Up to 13' of fill is proposed for the driveway. d) Up to 13.5' high retaining wall is proposed for the driveway. Consequently if the project is approved, we recommend the following conditions of approval: 1) Peak discharge at 27300 Ursula Lane, as a result of Site Development Permit 166- 08, shall not exceed the existing pre -development peak discharge value of the property. Detention storage must be incorporated into the project to reduce the predicted peak discharge to the pre -development value. Provide the data and peak discharge hydrologic model(s) utilized, as well as, the calculations of the peak discharge value prior and post development. Determine the design peak runoff rate for a 10 -year return period storm and provide detention storage design plans to reduce the predicted peak discharge to the pre -development value. All documentation, calculations, and detention storage design (2 plan copies) shall be submitted for review and approval to the satisfaction of the City Engineer prior to acceptance ofplans for building plan check. Prior to final inspection, a letter shall be submitted from the project engineer stating that the detention storage design improvements were installed as shown on the approved plans and in accordance with their recommendations. 2) Any, and all, changes to the approved grading and drainage plan shall be submitted as revisions from the project engineer and shall fust be approved by the Town Engineering Department. No grading shall take place during the grading moratorium (October 15 to April 15) except with prior approval from the City Engineer. No grading shall take place within ten feet of any property line except to allow for the construction of the driveway access. 3) All public utility services serving this property shall be placed underground. The applicant should contact PG&E immediately after issuance of building permit to start the application process for undergrounding utilities which can take up to 6_8 months." 4) At the time of foundation inspection for the new residence and prior to final inspection, the location and elevation of the new residence shall be certified in writing by a registered civil engineer or licensed land surveyor as being in/at the approved location and elevation shown on the approved Site Development plan. At the time of framing inspection for the new residence, the height of each building shall be similarly certified as being at the height shown on the approved Site Development plan. 5) Two copies of an erosion and sediment control plan shall be submitted for review and approval by the Engineering Department prior to acceptance of plans for buildingplan check. The contractor and the property owner shall comply with all appropriate requirements of the Town's NPDES permit relative to grading and erosion/sediment control. The first 100 feet of the driveway shall be rocked during construction and all cut and fill slopes shall be protected from erosion. All areas on the site that have the native soil disturbed shall be protected for erosion control during the rainy season and shall be replanted prior to final inspection. 6) Two copies of a grading and construction operation plan shall be submitted by the property owner for review and approval by the City Engineer and Planning Director prior to acceptance of plans for building plan check The grading/construction operation plan shall address truck traffic issues regarding dust, noise, and vehicular and pedestrian traffic safety on Ursula Lane and surrounding roadways, storage of construction materials, placement of sanitary facilities, parking for construction vehicles, clean-up area, and parking for construction personnel. A debris box (trash dumpster) shall be placed on site for collection of construction debris. Arrangements must be made with the GreenWaste Recovery, Inc. for the debris box, since they have a franchise with the Town and no other hauler is allowed within the Town limits. 7) The property owner shall inform the Town of any damage and shall repair any damage caused by the construction of the project to pathways, private driveways, and public and private roadways, prior to final inspection and release of occupancy permits and shall provide the Town with photographs of the existing conditions of the roadways and pathways prior to acceptance ofplans for building plan check 8) The property owner shall dedicate a 30' wide half -width public right of way to the Town over Edgerton Road and Black Mountain Road. The property owner shall provide legal description and plat exhibits that are prepared by a registered civil engineer or a licensed land surveyor and the Town shall prepare the dedication document. The dedication document, including the approved exhibits, shall be signed and notarized by the property owner and returned to the Town prior to submittal ofplans for building plan check 9) The property owner shall construct a native pathway through the property connecting Ursula Lane to Edgerton Road to the satisfaction of the Engineering Department prior to final inspection. 10) Two copies of a pathway improvements plans shall be submitted by the property owner for review and approval by the City Engineer prior to acceptance of plans for buildingplan check 11) The property owner shall dedicate a pathway easement along the proposed native pathway to the Town. The property owner shall provide legal description and plat exhibits that are prepared by a registered civil engineer or a licensed land surveyor and the Town shall prepare the dedication document. The dedication document, including the approved exhibits, shall be signed and notarized by the property owner and returned to the Town prior to submittal of plans for building plan check 12) The driveway shall be required to be fully constructed and to be roughened where the pathway intersects, to the satisfaction of the City Engineer, prior to final inspection. 13) A permit for the septic system shall be issued by Santa Clara County Health Department prior to acceptance ofplans for building plan check. 14) Conditions of Santa Clara County Health Department shall be met prior to final inspection. Please do not hesitate to contact me with any questions concerning this letter. Message Attachment 9 David Keyon From: Debbie Pedro Sent: Monday, January 26, 2009 8:42 AM To: 'Stephen D. Pahl' Cc: David Keyon Subject: RE: Lands of Liu - 27755 Edgerton Road Mr. Pahl, Thank you for taking the time to send us your comments about the proposed new residence at 27755 Edgerton Road. Your email will be Included in the staff report. Debbie Debbie Pedro, AICP, LEED AP Planning Director Town of LOS Altos Hills Phone: (650) 947-2517 Fax: (650) 941-3160 www losaltoshills ca aov From: Stephen D. Pahl [mailto: Sent: Sunday, January 25, 2009 12:10 PM To: Debbie Pedro Subject: Lands of Liu - 27755 Edgerton Road Mr. Pedro: We are residents of directly to the southeast of this proposed residence. We have spoken to the applicant and appreciate his efforts to reach out to their neighbors forfeedback and comments. We support the application and welcome them to our neighborhood. This a -mail message, Inducting anacbmente, is intended sole' y unaNhpdietl an.. use, disclosure, or dlstrlbuten is prohibits ORNIY- DENT PRIVILEGE or ATTORNEY WORK PRODUC' .W M the sender by retum a -mail and destroy all espies of to Stephen D. Pahl law by the wended recipknt(s) and may contain confidential w by anyone other than the intended nope nt(s) shall not EGrON that may apply to this communiczdon. If you are not message. Tax Actvtn Dlsdosure. Any tax Inrormatlon or written tax advio, contained in this emall message, including attachments, is not intended to and cannot be used Regula ons goveMthe ng �xrp fa at )voiding tax penal) es that may be imposed on the taxpayer. (The foregoing legend has been affixed pursuant to U.S. Treasury 1/26/2009 Attachment 10 David Keyon From; Sent: Wednesday, January 28, 2009 10:07 AM To: David Keyon Subject: Site development plans for Liu property Hello David, I have 3 suggestions for amendments to the currently proposed site plan: 1) A shorter driveway: The driveway as currently configured lays down more concrete next to the already very large concrete cul-de-sac of Ursula lane, removing a good swathe of the natural environment. Ursula Lane is a public street and cul-de-sac; why can't the entrance be directly from the cul de sac? 2) Not removing the great oak that is situated new the pad for the homesite. This oak is not in the way of building the house itself. Some judicious pruning would frame the parking pad and allow for turnaround access. 3)Location of port -a -potties: As soon as the driveway is accessible, locate the port -a -potties close to the site, away from the cul-de-sac, to minimize unsightly visuals and smells from the cul-de-sac during what is often a lengthly process to build a new house. Regards, Elaine Nelson 1/28/2009 Attachment 11 Planning Commission January 29, 2009 Att: David Keyon, Associate Planner Los Altos Hills Town Hall 26379 Fremont Road Los Altos Hills, CA 94022 Re: Your notice of January 23, 2009 in regard to Site Development Permit for 27755 Edgerton Road (proposed address change to 27300 Ursula Dr), #166-08-ZP-SD-GD. In regard to above mentioned permit application, we hereby request that the Planning Commission consider following concerns that we, the undersigned, have as a result of having reviewed the development plans today at the office of Los Altos Hills. our own address is i.e. one of the lots right next to the proposed construction. First of all, it is positive that the lot at 27755 Edgerton Road (hereafter The Lot) is being considered for development, as it for years have been a manifest source for poison oak, other unattractive weeds etc. However, having reviewed the current plans for The Lot, several major concerns emerge in regard to the specific proposed structure, in particular its size, the suggested driveway to the house, and the removal of some beautiful oak trees as described below. 1) The suggested driveway to the structure from Ursula Lane is of major concern: (i) The proposed driveway is extremely narrow with beautiful oak trees to one side and the corner of our lot to the other, 2-3 feet away. It seems very clear just from the experiences we all have with trucks coming to Ursula Lane that trucks to the proposed driveway will hit the oak tree, our fence etc repeatedly. Previous engineers and architects evaluating The Lot have all stated these concerns as prohibitory for building the suggested driveway. This is also the reason why most realistic suggestions for development of The Lot have focused on the entrance being from Edgerton Road. Also, the construction of the house itself will have to be conducted with turning a large part (including along our fence towards Ursula Lane) into a construction area thereby disturbing profoundly the calmness and attraction to live in a house at Ursula Lane. (iii) Therefore, during the construction, access to the fire hydrant at Ursula Lane may be limited or even blocked from time to time. That will obviously be absolutely unacceptable for everybody. 2) Removal of 8 oak trees. We obviously recognize that every new construction will have to result in removal of a few oak trees. However, the proposed trees to be removed are some of the trees we enjoy from our house and the view towards the Bay. Thus, if the suggested trees are removed it will fundamentally change the view from our house, in particular because the length of the proposed structure. Instead of the current pleasant mixture of trees, Bay and houses, all major reasons for us to buy our house, we will look at the proposed construction. Not a positive development. 3) Previous evaluations of The Lot by engineers and architects seem all to have reached the conclusion that the area of land for development (building a house) on The Lot is very limited, because of the steep slope of The Lot. Thus, the factual MDA of the lot Is significantly less than lot size, not only because of the slope, but also because a significant part of the lot is between our lot and the asphalted part of Ursula Lane. It has therefore been the consensus in previous evaluations that only a smaller house could be build. One of the major problems with the current proposal, apart from the entrance from Ursula Lane and removal of some very beautiful oak trees (previous proposals did include structures that would allow entrance from Edgerton), is thus that the proposed structure is to the very maximal size that even would be allowable for a lot, where the area possible to develop would be a major part of the lot. 4) We understand the "setback" from the address should be 40'. If the address is changed to Ursula Lane, it seems unclear whether the setback from our fence towards the front of the proposed house also should be 40'. In light of these concerns, we kindly request the Planning Commission to recommend the following changes to the proposed structure: A) The entrance to The Lot should be at the current address at Edgerton Road as this is possible to construct and as the proposed entrance from Ursula Lane represents a non-functional solution that will be very disruptive and negative for the majority of the houses at Ursula Lane. B) Suggest to the planner of the structure a small house, thereby also enable preservation of some of the oak trees, we all enjoy today. Their removal will be a major disruption of an otherwise very harmonious Nature and environment in a beautiful part of Los Altos Hills. Sincerely, Tatjana and Lennart Olsson Los Altos Hills, CA 94022 21 Page n Attachment 12 *z \ I I Y x N ti \ \W i Lam. \ 27300 URSULA LANE ��K Guueul 6 %u151xGluueul 6 1(uU, lx GRADING EXCEPTION E I� 0 1 _ E%HIBIT n Attachment 12 *z \ I I Y x N ti \ \W i Lam. \ 27300 URSULA LANE ��K Guueul 6 %u151xGluueul 6 1(uU, lx GRADING EXCEPTION E _ E%HIBIT LOS P1i06 NILLS. G