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File #: 26-203    Version: 1 Name:
Type: Discussion Item Status: Agenda Ready
File created: 1/14/2026 In control: Contra Costa County Zoning Administrator
On agenda: 1/21/2026 Final action:
Title: JAMIE GROETSCH, THE ARCHITECTS OFFICE (Applicant) - STEPHEN C LOWRY TRE (Owner), County File CDVR25-01041: The applicant requests approval of a Development Plan for a Kensington Design Review to allow a gross floor area of 2,828 square feet (where the maximum gross floor area is 2,000 square feet) for the construction of a new, approximately 135-square-foot second story uncovered deck built over a lower level patio area located at the rear of an existing single-family residence and a Variance to allow a 9’-11” secondary frontage setback (where 15’ is the minimum) for the construction of a new, uncovered deck. The subject property is located at 242 Yale Avenue in the Kensington area in Contra Costa County. (APN: 570-071-005, Zoning: R-6 Single-Family Residential District, -TOV Tree Obstruction of Views Combining District, -K Kensington Combining District) CP
Attachments: 1. Attachment 1 - Findings_COAs, 2. Attachment 2 - Maps, 3. Attachment 3 - Agency Comments, 4. Attachment 4 - Project Plans
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Project Title:

Variance and Kensington Design Review for Deck
County File:
CDVR25-01041
Applicant:
Owner:
Jamie Groetsch, The Architects Office
Stephen C Lowry Tre
Zoning:
R-6 Single-Family Residential District (R-6), Tree Obstruction of Views Combining District (-TOV), Kensington Combining District (-K)
General Plan:
Residential Medium Density (RM)
Site Address/Location
242 Yale Avenue, Kensington, CA 94708 / APN: 570-071-005
California Environmental Quality Act (CEQA) Status:
Categorical Exemption, CEQA Guidelines Section 15301(e)
Project Planner:
Chloe Partain, Planner I - phone: (925) 655-2857 and email: chloe.partain@dcd.cccounty.us
Staff Recommendation:
Approve (See section II for full recommendation)


I. PROJECT SUMMARY

The applicant requests approval of (1) a Development Plan with a Kensington Design Review to allow the construction of a new, approximately 135-square-foot uncovered deck extending from the rear of the second floor of an existing single-family residence with a gross floor area of 2,693 square feet, where the maximum gross floor area is 2,000 square feet and (2) a Variance Permit to allow a 9'-11" secondary frontage setback (where 15' is the minimum) for the construction of a new, uncovered deck that meets the requirements of Section 26-2.2006 of the County Ordinance Code.

II. RECOMMENDATION

The Department of Conservation and Development, Community Development Division (CDD) staff recommends that the Zoning Administrator:
1. OPEN the public hearing for the Variance and Kensington Design Review (County File #CDVR25-01041), ACCEPT public testimony, and CLOSE the public hearing;
2. DETERMINE that the project is categorically exempt from CEQA;
3. APPROVE County File #CDVR25-01041 based on the attached Findings and Conditions of Approval; and
4. DIRECT staff to file a Notice of Exemption.

III. BACKGROUND

The application was submitted as a Variance application on August 26, 2025. The development results in a gross floor area that exceeds th...

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