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To: |
Hillside Building Committee |
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From: |
Hugo Vasquez; Hillside Development Administrator |
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Date: |
November 18th, 2020 |
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Subject: |
Concept review for a new single family residence at 6519 E Hummingbird Lane (APN 174-52-002G). |
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Narrative: |
The proposed project shall construct a new single family residence with a pool and detached guesthouse. The new project has an application date of September 2nd, 2020 and will be reviewed under the 2018 Hillside Development Regulations. |
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Lot Data |
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1. |
Area of Lot |
1.933 ac or 84,186 ft² |
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2. |
Area Under Roof |
22,753 ft² |
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3. |
Floor Area Ratio |
27.03% |
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4. |
Building Site Slope |
11.30% |
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5. |
Allowable Disturbed Area |
43,730 ft² (51.94%) |
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6. |
Existing Gross Disturbed Area |
51,980 ft² (61.74%) |
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7. |
Proposed Net Disturbed Area |
40,669 ft² (48.31%) |
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8. |
Maximum Building Height |
TBD |
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9. |
Overall Height |
TBD |
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10. |
Volume of Cut/Fill |
TBD |
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11. |
Hillside Assurance |
TBD |
Background
The property is an empty lot with existing disturbance. The residence that previously occupied the project lot and the adjacent lot to the east was demolished in 2011.
Single Family Residence
The new project shall construct a new single family residence and guesthouse with approximately 10,000 ft2 of livable area.
Guesthouse
A detached guesthouse is proposed near the southwest corner of the residence.
Driveway
A new driveway coming off E Hummingbird Lane is proposed.
Pool
A negative edge pool and spa are proposed east of the residence.
Materials
No proposed material details have been provided at this point.
Landscaping
No proposed landscaping details have been provided at this point. Revegetation is proposed for the adjacent lot to the east.
Land Disturbance
A gross disturbed area of 61.74% (51,980 ft2) currently exists on the lot and the building pad slope of 11.30% allows a disturbance of 51.94% (43,730 ft2) the lot. The applicant has proposed a net disturbed area of approximately 48.31% (40,669 ft2), which is less than the allowable disturbance.
Grading and Drainage
A preliminary grading and drainage plan has been provided. The proposed construction of the property shall be required properly retain the “pre vs post” storm water volumes for the 100-year, 2-hour rainfall event. Several retention basins have been proposed.
Sewer
Public sewer is located south of the residence along E Meadowlark Lane.
Hillside Safety Improvement Plan
The Applicant shall submit a Hillside Safety Improvement Plan in accordance with the Hillside Safety Improvement Measures and Process Manual per Section 5-10-9 of the Town Code.
The Hillside Building Committee Formal Review Meeting shall not be scheduled until the Town Engineer and/or Technical Advisory Board are satisfied with the Applicant’s Registered Professional Engineer sealed reports comprising the Safety Improvement Plan and the Formal Hillside Plans. The Safety Improvement Plan shall remain the responsibility of the Applicant and have the seal of the Applicant’s Engineer who shall be liable for any failures.
Conceptual Plan Review
The purpose of the Conceptual Plan Review Meeting is to discuss, review, and give suggestions and guidance to the applicant. A detailed set of plans will be submitted for formal review in accordance with Section 2206.I. The following criteria are sections of the Hillside Building Code that govern the conceptual review:
§ Section 2205.III - Concept Plan Review Meeting:
The Applicant, along with their architect and engineer shall submit a completed application and the required fees, to the Town Engineer, at the time they request a concept plan review meeting (pre-hillside meeting) with the Hillside Building Committee. The purpose of this meeting is to discuss, review, and give suggestions and guidance to the Applicant regarding the proposed development including: the location of the building pad and accessory uses; how these relate to Significant Natural Features; the preservation of existing vegetation; grading concepts and their adaptation to the natural hillside topography; and how the requirements pursuant to these hillside regulations and purpose statement will guide the proposed Development.
§ Section 2206.II - Concept Plan Review Meeting.
The applicant shall submit the following:
A. Seven (7) copies of a preliminary site plan that includes, but is not limited to, the building footprint, driveway, swimming pool, and accessory use locations along with topographic information for the lot.
B. A 3-dimensional representation of the general massing of all proposed structures (e.g. a mass model, a 3-D rendering or a computer-generated model in relation to topography - not a detail model).
C. A recent aerial photo of the site (less than 1 year old), with topography, lot lines, and the building footprint superimposed on it, and identification of significant natural features as well as adjacent lots and structures within 100 feet of the perimeter of the subject property (min. 24”X 36”), and the location of the driveway access in relation to the nearest roadway.
D. Preliminary calculations on land disturbance and cut and fill methods.