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HomeMy WebLinkAbout3.1 3�J TOWN OF LOS ALTOS HILLS August 12, 1998 Staff Report to the Planning Commission RE: SITE DEVELOPMENT PERMIT FOR A NEW SECOND UNIT; LANDS OF DAVISON; 26960 ORCHARD HILL LANE; FILE#135-98-ZP-SD. FROM: Susan Stevenson, Planner35 APPROVED BY: Curtis S. Williams, Planning Directk RECOMMENDATION That the Planning Commission: Approve the requested Site Development Permit, subject to the recommended conditions of approval. BACKGROUND The subject property is currently developed with a single story ranch style house. The property is located at the south side of the Orchard Hill Lane cul de sac. The subject property is lot 6 of tract 3280 which was subdivided in 1963. There are no conditions of the subdivision limiting development on the lot on record. CODE REQUIREMENTS As required by Section 10-2.301 of the Site Development Ordinance, this application for a new second unit has been forwarded to the Planning Commission for review and approval. Second units larger than 750 square feet are forwarded to the Planning Commission for review. Criteria for review from the Site Development Ordinance include grading, drainage, building siting, pathways, landscape screening and outdoor lighting. Zoning Code review encompasses compliance with floor and development area requirements, setbacks, height and parking. This project has been scheduled for the Commission's "Consent Calendar," meaning there will be no discussion unless a Commission member or someone from the public pulls the item for consideration. While there may be details which could be discussed, staff strongly believes that the height, style, and materials proposed are substantially consistent with the Town's codes and Design Guidelines, and the project should be readily approved. If Conunissioners have questions about the project, please contact staff in advance of the meeting. Planning Commission Lands of Davison August 12, 1998 Page 2 • DISCUSSION Site Data: Gross Lot Area: 1.013 acres Net Lot Area: 1.013 acres Average Slope: 17.9% Lot Unit Factor: 0.842 Floor Area and Development Area: Area Maximum Proposed Existing Increase Left Development 10,136 9,744 8,670 +1,074 +392 Floor 4,720 4,579 3,680 +899 +141 Site and Architecture The applicant is requesting approval of a site development permit for a new second unit. The unit would include 899 square feet. The unit would include 2 bedrooms and full bathrooms, with a full kitchen and living area. The existing basement area of the main residence would be backfilled 1 to 2 feet along the front of the house to meet the Code requirement for basements. The height of the new second unit would be 14 to 15.5 feet high, as measured from the natural grade or building pad, whichever is lower. The south of the structure would be cut into the hillside 3.5 feet with a 5 foot high retaining wall behind the building to allow access around the structure. The north side of the structure would require up to 3 feet of fill, with 3.5 feet of fill proposed to the north of the structure to allow for access around the north side of the building. Please note that the left side elevation indicates more than 3 feet of fill for the structure, which is inaccurate based on the engineer's stamped site plan. The story poles have been placed on the site for the Commission's review. Proposed exterior materials include horizontal siding and a synthetic wood roof, matching the main residence. No skylights are proposed. The proposed structure matches the architectural style of the main residence. The roof pitch matches the pitch of the existing residence and the windows along the rear elevation match the window design along the front of the house. Exterior colors will be reviewed to match the residence or for conformance with the Town's adopted color board, prior to the painting of the second unit. • Planning Commission Lands of Davison August 12, 1998 Page 3 Driveway &Parking The driveway enters the site from the end of the Orchard Hill Lane cul de sac. The parking on the site includes 3 spaces in the garage and 2 spaces in the oversized turnaround area. Both spaces located within the turnaround area are located within the setbacks of the property, but are existing spaces which would not be required to be changed. Outdoor Lighting Outdoor lighting has been shown on sheet 2 of the plans. The applicant proposes one light per exit, except at the front entry. Light fixtures have not been selected, but are required to be downshielded to minimize visibility from off site (condition#5). Trees &Landscaping There are several orchard trees along the slope to the north 6f the existing residence. The trees will provide some minor screening of the new guest house from off site, although additional screening would be required to minimize any visual impact. The Environmental.Design & Protection Committee has commented that additional trees should be planted along the north, downhill side of the new structure. Staff has included a condition requiring staff to review a landscape screening plan for the building prior to final inspection (condition #2). Grading &Drainage The guest house has been located on the flatter portion of the slope, downhill of the residence. The guest house would require up to 3.5 feet of cut at the southern side of the structure and 3 feet of fill along the north portion of the building. Additional cut and fill has beendesigned around the structure to allow for access around the building. The fill to the north of the residence would not exceed 3.5 feet and the retaining wall at the south side of the structure would be 5 feet in height. The basement of the main residence will be backfilled along the front of the residence to assure that the Code requirement for basements is met and this space has not been counted toward the floor or development areas. The Engineering Department has reviewed the plans I and has recommended conditions of approval as specified in Attachment 1. Drainage is designed to sheetflow around the new guest house. The Engineering Department will review and approve the final drainage plan prior to acceptance of plans for building plan check. Final "as-built" grading and drainage will be inspected by the Engineering Department, and any deficiencies will be required to be corrected prior to final inspection. Planning Commission Lands of Davison August 12, 1998 Page 4 Fire Department Review The Santa Clara County Fire Department's review determined that the flow capacity of the nearest fire hydrant will not be adequate for the proposed second unit. Fire sprinklers have been required to mitigate the inadequate fire flow, although the property owner has the option to install fire hydrants per the Fire Departments requirements in lieu of the sprinklers. In addition, the property address shall be clearly visible-from the street. The Fire Department recommendations have been included as conditions in Attachment 1. Committee Review The Pathway Committee has no requirements for the pathway improvements, although the Committee has requested that the owners consider dedicating a pathway connection to Quail Lane to reflect current use by neighbors and school children. Such an off-road connection may not be required, however, as it is not shown on the Town's master path plan. The Environmental Design Committee recommends that screening trees be planted along the north side of the new unit. Staff has incorporated these comments into condition of approval#2. .. Staff has received a letter from neighbors on Quail Lane (David and Carol Jury), indicating concern regarding construction equipment accessing the site from Quail Lane. Staff has included a condition of approval restricting access to the site for the construction of the guest house to Orchard Hill Lane (condition #18). Staff is available to answer any questions that the Commission or the public may have. ATTACHMENTS 1. Recommended conditions of approval; 2. Comments from Santa Clara County Fire Department, dated June 24, 1998; 3. Pathway's Committee recommendation, dated July 27, 1998; 4. Environmental Design &Protection Committee evaluations, received July 21, 1998; 5. Letter from neighbors,David and Carol Jury, dated August 1, 1998; 6. Worksheet#2; 7. Development plans. cc: Richard and Pamela Davison 26960 Orchard Hill Lane Los Altos Hills, CA 94022 Planning Commission Lands of Davison August 12, 1998 Page 5 ATTACHMENT I1 RECOMMENDED CONDITIONS FOR SITE DEVELOPMENT PERMIT FOR A NEW SECOND UNIT LANDS OF DAVISON, 26960 ORCHARD HILL LANE A. PLANNING DEPARTMENT: 1. Any changes or modifications to the approved plans shall be approved by the Planning Director or the Planning Commission, depending upon the scope of the changes. 2. Subsequent to final framing, a landscape screening and erosion control plan shall be submitted for review by the Planning Department. Particular attention shall be given to plantings which will be adequate to break up the view of the new second unit from surrounding properties and streets and maintaining privacy between neighbors, especially along the north of the unit. All landscaping required for screening purposes or for erosion control (as determined by the City Engineer) must be installed prior to final inspection, unless the Planning Director finds that unusual circumstances, such as weather or site conditions, require that planting be delayed. In those instances, a deposit of an amount equal to the cost of landscape materials and installation, to the satisfaction of the Planning Director, shall be submitted to the Town. Landscaping shall in any event be installed not later than six months after final inspection, or the deposit will be forfeited. 3. A landscape maintenance deposit (or certificate of deposit), equal to the cost of materials and installation for all landscaping required for screening purposes or for erosion control (as determined by the City Engineer), but not to exceed $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 installation. The deposit will be released at that time if the plantings remain viable. 4. Paint colors shall be chosen by the applicant and approved by staff in conformance with the Town's adopted color board, and shall exhibit a light reflectivity value of 50 or less and shall match the main residence. Roofs shall use materials which have a light reflectivity value of 40 or less. White trim area should be minimized, particularly on large surfaces such as doors, columns, railings, and trellises. A color sample shall be submitted to the Planning Department for approval prior to acceptance of plans for building plan check. All applicable structures shall be painted in conformance with the approved color(s) prior to final inspection. Planning Commission Lands of Davison August 12, 1998 Page 6 5. Skylights, if utilized, shall be designed and constructed to reduce emitted light. No lighting may be placed within skylight wells. 6. Fire retardant roofing is required for the new construction. 7. Outdoor lighting specifications shall be submitted for Planning Department approval prior to acceptance of plans for building plan check. Locations are approved as shown on the elevations. Any additional outdoor lighting shall be reviewed with the landscape plan. Lighting fixtures shall generally be downlights. Exceptions may be permitted in limited locations (entry, garage, etc.) or where the fixtures would not be visible from off site. Flood lights shall be directed away from neighbors. Any security lighting shall be limited in number and directed away from clear view of neighbors, and shielding with shrouds or louvers is suggested. Lighting shall be low wattage, shall not encroach or reflect on adjacent properties, and the source of lighting should not be directly visible from off site. No lighting may be placed within the setbacks except for 2 driveway or entry lights, except where determined to be necessary for safety. 8. At the time of foundation inspection for the new second unit, and prior to final inspection for grading, and hardscape improvements, the location and elevation of the new second unit 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. B. ENGINEERING DEPARTMENT: 9. 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 between November 1 and April 1 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. 10. All public utility services serving this property shall be placed underground. 11. 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 Town's NPDES permit relative to Planning Commission Lands of Davison August 12, 1998 Page 7 grading and erosion/sediment control. The first 100 feet of the driveway shall be rocked during construction hand 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. 12. 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 plan shall address truck traffic issues regarding dust, noise, and vehicular and pedestrian traffic safety on Taaffe Road and surrounding roadways; storage of construction materials; placement of sanitary facilities; parking for construction vehicles; and parking for construction personnel. In particular, the plan should address how construction personnel vehicles, will be parked so as to leave the roadway clear. A debris box (trash dumpster) shall be placed on site for collection of construction debris. Arrangements must be made with the Los Altos Garbage Company for the debris box, since they have a franchise with the Town and no other hauler is allowed within the Town limits. 13. 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 shall provide the Town with photographs of the existing conditions of the roadways and pathways prior to acceptance of plans for building plan check. 14. 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. • 15. The property owner shall be required to connect to the public sanitary sewer prior to final inspection. A copy of a permit from the City of Los Altos shall be required to be submitted to the Town prior to submittal of plans for building plan check. 16. The site drainage associated with the proposed development must be designed as surface flow wherever possible to avoid concentration of the runoff. The proposed drainage shall be designed to maintain the existing flow patterns. A final grading and drainage plan shall be submitted for approval by the Engineering Department prior to acceptance of plans for building plan check. Final drainage and grading shall be inspected by the Engineering Department and any deficiencies corrected to the satisfaction of the Engineering Department prior to final inspection. A final letter • Planning Commission Lands of Davison August 12, 1998 Page 8 shall be submitted from the project engineer stating that the drainage improvements were installed as shown on the approved plans and in accordance with their recommendations prior to final inspection. 17. a. The property owner shall be required to connect the secondary unit to public sanitary sewer prior to final inspection. Connection fees shall be collected with the building permit fees. Copies of the recorded private sanitary sewer easements which are required on neighboring properties in order for the sewer connection to be done shall be submitted to the Engineering Department prior to acceptance of plans for building plan check. OR b. A permit for the septic system shall be issued by the Santa Clara County Health Department prior to acceptance of plans for building plan check. Conditions of the Santa Clara County Health Department shall be met prior to final inspection. 18. Construction vehicles may not access the site from Quail Lane. Access to the site is limited to the site to enter from Orchard Hill Lane. C. FIRE DEPARTMENT 19. The property address shall be placed on the property so that it is clearly visible and legible from Orchard Hill Lane. The address numbers shall be a minimum of four inches high and shall contrast with the background color. 20. Prior to final inspection, the applicant shall install a fire sprinklering system to assure that adequate flow is available to the residence. The design of the fire sprinklering system shall be reviewed and approved by the fire department prior to acceptance of plans for building plan check, unless the Department approves an alternative means of improving water supply to the site. Planning Commission Lands of Davison August 12, 1998 Page 9 ,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 4, 7, 11, 12, 13, 15, 16, 17 AND 20 SHALL BE COMPLETED AND SIGNED OFF BY THE PLANNING DIRECTOR AND THE CITY ENGINEER PRIOR TO ACCEPTANCE OF CONSTRUCTION PLANS FOR PLAN CHECK BY THE.BUILDING DEPARTMENT. Properties residing within the Los Altos School District boundaries must pay School District fees before receiving their building permit from Los Altos Hills. The applicant must take a copy of Worksheet#2 to both the elementary and high school district offices, pay the appropriate fees and provide the Town with a copy of their receipts. NOTE: The Site Development permit is valid for orie year from the approval date (until August 12, 1999). All required building permits must be obtained within that year and work on items not requiring a building permit shall be commenced within one year and completed within two years. • 08/03/98 11:11 1 408 378 9342 CFPD . IgOUL/UUZ ATTACHMENT ° °6- FIRE DEPARTMENT L IRE_( '4 SANTA CLARA COUNTY CONTROL NUMBER EST.1947I* 14700 Winchester Blvd., Los Gatos, CA 95032-1818 Bim,PERMIT NUMBER COURTESY&SERVICE (408)378-4010(phone) • (408)378-9342(fax) 98- 1782 PLAN REVIEW NUMBER RLE NUMBER 135-98-ZP-S DEVELOPMENT REVIEW COMMENTS CODE/SEC. SHEET NO. REQUIREMENT Review of plans for a new accessory dwelling (detatched). Planner: Susan Stevenson UFC 1. Required Fire Flow: Required fire flow for this project_is 1500 GPM at 20 psi IIppedn "` residual pressure. The required fire flow is not available from area water mains and fire hydrant(s) which are spaced at the required spacing. UFC 2. Required Fire Flow Option (Single Family Dwellings):. Provide required fire 903.2 flow from fire hydrants spaced at a maximum of 500 feet OR Provide an approved fire sprinkler system throughout all portions of the building. The. fire sprinkler system shall conform to National Fire Protection Association Standard #13D, 1994 Edition, and local ordinance requirements. UPC 3. Required Access to Water Supply (Hydrants): Portions of the structure(s) are 903 9as.2 greater than 150 feet of travel distance from the centerline of theroadway containing public fire hydrants. Provide an on-site fire hydrant OR provide an approved residential fire sprinkler system throughout all portions of the building. DISTRICT PLANS SPECS NEW RMDL AS OCCUPANCY CONST.TYPE PERLIrrTEE DATE PAGE LAH 0 0 0 0 0 . A C &H CIVIL ENGINEERS 6/24/98 1 OF 1 SECJFLOOR AREA - LOAD DESCRIPTION BY Residential Development Hokanson,Wayne NAME OF PROJECT LOCATION LANDS OF DAVIDSON 26960 Orchard Hill Lrt A California Fire Protection District serving Santa Clara County and the communities of Campbell, Cupertino, Los Altos, Los Altos Hills, Los Gatos,Monte Sereno,Morgan Hill,and Saratoga a 2 1 ATTACHMENT ' 25625 O'Keefe Lane; Lands of Borns property and provide a pathway easement at Construction: Restore II-B path along least 10 feet wide that encompasses this O'Keefe Lane. Invite donation of a 10 foot route. 1/26/98 i pathway easement along either the Northern 11972 Rhus Ridge Road; Lands of . or Eastern boundary of the property, to Malek: No request. 1/26/98 connect the cul-de-sac to the pathway next to the freeway. 6/22/98 13474 Robleda Road; Lands of Danver:' No request. 3/23/98 I 25665 O'Keefe Lane; Lands of Euro 27585 Samuel Lane; Lands of Nuveen Development: Restore II-B path along Construction: No request. 6/22/98 O'Keefe Lane.. Invite donation of a 10 foot easement along the Western boundary of the 27589 Samuel Lane; Lands of Nuveen property to connect the cul-de-sac to the Construction: Restore II-B path along pathway next to the freeway. 6/22/98 Purissima Road. 6/22/98 24004 Oak Knoll Circle; Lands of 26062 Scarff Way; Lands of Scarff: Gorman: Restore II-B path along Oak Dedicate a 10 foot pathway easement along Knoll Circle; construct a II-B path along the South boundary from Scarff Way to Stonebrook from Oak Knoll Circle to a point Esther Clark Park and construct a II-B path • opposite the beginning of the II-B path on within this easement connecting to the the West side of Stonebrook and from that existing sidepath along Scarff Way. • point construct a native path at the toe of the 4/27/98 • slope along Stonebrook connecting to the 27760 Sherlock Road; Lands of existing native path leading to Juan Prado Huang: Provide a pathway easement on Mesa Preserve. 1/26/98 Sherlock) 3/23/98 24028 Oak Knoll Circle; Lands of 27766 Stirrup; Lands of Earnest: Shum and Teng: Restore II-B path. Roughen I driveway if needed. 7/27/98 7/27/98 26960 Orchard Hill Lane; Lands of 24300 Summerhill Road; Lands of Davison: No request to Planning Kamanger : Construct II-B path separated Commission. Request to Town for letter to . from Summerhill by 5 feet; grant easement home owners. 7/27/98 if needed. 4/27/98 11030 Magdalena Avenue; Lands of 26870 Taafe Road; Lands of Lo: Allison: No request. 4/27/98 Restore II,-B path along Taafe Road. 5/21 /98 14470 Manuella; Lands of Kwong: 26990 Taafe Road; Lands of Gafner: Construct II-B path along Manuella. • No request. 4/27/98 3/23/9. 8 12580 Miraloma Way; Lands of 13700 Wildflower Lane; Lands of • Harari: No request. 1/26/98 Danaher: Grant pathway easement. 6/22/98j 7/27/98 11471 Page Mill Road; Lands of 13737 Wildflower Lane; Lands of Wilson: Provide sufficient easement along Seufferlein: Construst II-B path using Page Mill Road to encompass at least 10 feet curb as one header. Grant pathway easement from the top of the bank and construct a if needed. 7/27/98 native path along this route; construct an off-road native path on the South side of Buena Vista Drive beginning about 50 feet from Page Mill Road and ending adjacent to Buena Vista at the East boundary of the - ATTACHMENT ENVIRONMENTAL DESIGN COMMITTEE RECEIVED NEW RESIDENCE EVALUATION J U L 2 l 1998 Applicant's Name: „az 7�� TOWN LF LOS + O3 CMS Address: Lewedb : �� �v 1/-, Date: 7 Existing Trees: (Comment on size, type, condition, ideation with respect to building site. Recommended protection during construction.) Proposed Grading: (Impact on water table, nearby vegetation. Erosion potential. All grading at least 10' from property line?) /va Creeks and drainage: (Should a conservation easement be recommended? Sufficient space between house and conservation easement for circulation. Will construction impact wildlife migration (bridges, fences)? Is there a need for removal of invasive species?) Siting: (View impact: ridgeline, across valley, on neighbors. Will driveway impact neighbors' privacy (lights, noise)? Recommended mitigation (height, color, landscape).) _ ��5 rCa /-eYJ Other Comments:?5 ,7 ATTACHMENT 5 David and Carol Jury RECEIVED 26070 Quail Lane Los Altos Hills, CA 94022 AUG 0 3 1998 TOWN OF LOS ALTOS HILLS August 1, 1998 Curtis S.Williams Planning Director Town of Los Altos Hills 26379 Fremont Road Los Altos Hills,CA 94022 • Ref: Lands of Davison,25900(sic) Orchard Hill Lane:(135-98-ZP-SD) Dear Mr.Williams: As residents on Quail Lane,we have no comments on the site plan or the design of the above application. Access is however of great concern to us. The six families on Quail Lane are in the process of repaving Quail Lane and repairing the culvert at Robleda and Quail. This project is being completed at considerable cost to each of us. Recent construction on a neighboring Orchard Hill property used Quail Lane for access causing damage to the street that was never repaired. As Quail Lane is a private road and maintenance is left to the residents on Quail,we would appreciate the Town's support by including as a condition of approval of this project and any subsequent Orchard Hill projects,a prohibition of the use of Quail Lane for construction access,parking or permanent access'unless arrangements are made with all of the Quail Lane property owners for indemnification for damages and maintenance costs. We will soon be completing our work and would hate to have it ruined by construction vehicles. Thank you for your help in this matter. Sincere , \ \ David Jury cc: Quail Lane property owners • ATTACHMENT h TOWN OF LOS ALTOS HILLS PLANNING DEPARTMENT 26379 Fremont Road • Los Altos Hills,California 94022 i (415)941-7222 • FAX(415) 941-3160 • WORKSHEET #2 EXISTING AND PROPOSED DEVELOPMENT AREA AND FLOOR AREA • TURN IN WITH YOUR APPLICATION • PROPERTY OWNER'S NAME PAM ) iNc V ( .S 0.1 PROPERTY ADDRESS 2696 9 0eC-( ARz RILL .LANE CALCULATED BY A1C, CIVIL ....N C,- i R E E I S DATE N by c cA se g, 199 7 1. DEVELOPMENT AREA (SQUARE FOOTAGE) Existing Proposed Total (Additions or Deletions) A. House and Garage (from Part 2. A.) 3 . 8•a. 3690 B. Decking — C. Driveway and Parking • (Measured 100'along centerline) 3 13 0 3/30 D. Patios and Walkways ' EGO P � 5 E. Tennis Court - F. Pool and Decking _ . G. Accessory Buildings (from Part B) — 8 9 9 S3`?9 H. Any other coverage TOTALS 8.6 70 4Q 1614 956 1 Li Li Maximum Development Area Allowed - MDA (from Worksheet #1) I 0 1 S Lv 2. FLOOR AREA (SQUARE FOOTAGE) Existing Proposed Total (Additions or Deletions) A. House and Garage • • a. 1st Floor '2.C1 2 L 2.137.1 b. 2nd Floor ._ c. Attic and Basement 1;5- (p:; Lo,,/ ( R d. Garage 7 59' 759 B. Accessory Buildings a. 1st Floor _ 89R gag b. 2nd Floor c. Attic and Basement ! TOTALS 3/09 o gc19 4- 7 Maximum Floor Area Allowed - MFA (from Worksheet #1) 4 S.0 TOWN USE ONLY CHECKED BY DATE M_ Revised 2/26/96 LRL MAC HD/ORICINALS/PLANNING/Worksheet tt2