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File #: 26-130    Version: 1
Type: Public Hearing Status: Agenda Ready
File created: 1/7/2026 In control: Planning Commission
On agenda: 2/4/2026 Final action:
Title: STEVE MCPHERSON / PROMISE WINERY / VARIANCE P25-00283, USE PERMIT P22-00384-UP, AND EXCEPTION TO THE NAPA COUNTY ROAD AND STREET STANDARDS CEQA Status: Consideration and possible adoption of a Mitigated Negative Declaration. According to the proposed Mitigated Negative Declaration (State Clearing House No. 2025120435), the proposed project would not have any potentially significant environmental impacts after implementation of mitigation measures. Mitigation measures are proposed for the following areas: Biological and Tribal Cultural Resources. The project site is not included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5. Request: Approval of a Variance to the 300-foot winery setback from a private road and the 600-foot winery setback from Sage Canyon Rd/Hwy 128 to allow winery buildings in the setbacks; a Use Permit to establish a new phased 30,000 gallons per year winery, including the conversion and expansion of an existing barn to a...
Sponsors: Board of Supervisors
Attachments: 1. Attachment A - Recommended Findings, 2. Attachment B - Recommended Conditions of Approval and Final Agency Approval Memos, 3. Attachment C - Promise Winery IS-MND, 4. Attachment D - Use Permit and Variance Application Forms and Narrative, 5. Attachment E - County Road and Street Standards Exception Request, 6. Attachment F - Water Availability Analysis, 7. Attachment G - Wastewater Analysis, 8. Attachment H - Biological Study prepared for P17-00348-ECP, 9. Attachment I - Vehicle Sight Distance Mitigation Report, 10. Attachment J - 30000g WineryComparison Table, 11. Attachment K - Graphics, 12. Attachment L - Public Comments
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TO: Napa County Planning Commission
FROM: Brian D. Bordona, Director Planning, Building and Environmental Services
REPORT BY: Hannah Spencer, Planner III
SUBJECT: Promise Winery Variance (P25-00283-VAR), Use Permit (P22-00384-UP), and Exception to the Road and Street Standards


RECOMMENDATION
title
STEVE MCPHERSON / PROMISE WINERY / VARIANCE P25-00283, USE PERMIT P22-00384-UP, AND EXCEPTION TO THE NAPA COUNTY ROAD AND STREET STANDARDS

CEQA Status: Consideration and possible adoption of a Mitigated Negative Declaration. According to the proposed Mitigated Negative Declaration (State Clearing House No. 2025120435), the proposed project would not have any potentially significant environmental impacts after implementation of mitigation measures. Mitigation measures are proposed for the following areas: Biological and Tribal Cultural Resources. The project site is not included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5.

Request: Approval of a Variance to the 300-foot winery setback from a private road and the 600-foot winery setback from Sage Canyon Rd/Hwy 128 to allow winery buildings in the setbacks; a Use Permit to establish a new phased 30,000 gallons per year winery, including the conversion and expansion of an existing barn to a winery, construction of a wine cave and covered crush pad/bottling area for wine production, conversion of an existing accessory dwelling unit to a tasting room, construction of an unenclosed covered parking structure, associated tours and tastings by appointment only, and establishment of a marketing program; and an exception to the Napa County Road and Street Standards (RSS) for project driveway improvements that serve the same overall practical effect of the Napa County Road and Street Standards.

The project is located on an approximately 62.56-acre site within the Agricultural Watershed (AW) zoning district with a General Plan land use designation of Agriculture, Watershed, and Ope...

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