Legislation Details

File #: 26-848    Version: 1
Type: Public Hearing Status: Agenda Ready
File created: 3/17/2026 In control: Planning Commission
On agenda: 6/17/2026 Final action:
Title: Proposed Napa County Code Amendments Related to Urban Lot Splits and Two-Unit Development Request: This is a County-initiated amendment to the Napa County Code for Titles 17 (Subdivisions) and 18 (Zoning), to bring the Code into alignment with current State law regarding Urban Lot Splits and Two-Unit Development. Staff Recommendation: Hold a public hearing and recommend the Board of Supervisors adopt the proposed Ordinance amendment to the Napa County Code. Staff Contact: Trevor Hawkes, Supervising Planner, 707-253-4388 or trevor.hawkes@countyofnapa.org
Sponsors: Board of Supervisors
Attachments: 1. Attachment A - Proposed Ordinance (Clean), 2. Attachment B - Proposed Ordinance (Redline), 3. Attachment C - Executive Summary
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TO: Napa County Planning Commission
FROM: Brian Bordona; Director of Planning, Building and Environmental Services
REPORT BY: Trevor Hawkes; Supervising Planner
SUBJECT: Amendments to Titles 17 & 18 of the Napa County Code related to Urban Lot Splits and Two-Unit Development


RECOMMENDATION
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Proposed Napa County Code Amendments Related to Urban Lot Splits and Two-Unit Development

Request: This is a County-initiated amendment to the Napa County Code for Titles 17 (Subdivisions) and 18 (Zoning), to bring the Code into alignment with current State law regarding Urban Lot Splits and Two-Unit Development.

Staff Recommendation: Hold a public hearing and recommend the Board of Supervisors adopt the proposed Ordinance amendment to the Napa County Code.

Staff Contact: Trevor Hawkes, Supervising Planner, 707-253-4388 or trevor.hawkes@countyofnapa.org
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EXECUTIVE SUMMARY
Proposed Action:

Staff recommend that the Planning Commission hold a public hearing and recommend the Board of Supervisors approve the proposed ordinance amending the County Code for compliance with State housing law.

Discussion:

This is a County-initiated amendment to bring County Code in alignment with State housing law. The proposed draft ordinance would update code sections related to Urban Lot Splits (NCC Sections 17.17.020 and 17.17.040) and Two-Unit Development (NCC Section 18.104.440), bringing them into compliance with State law through the 2025 State legislative session.

ENVIRONMENTAL IMPACT
ENVIRONMENTAL DETERMINATION: Adoption of an ordinance to implement provisions of SB 9 (Government Code Sections 65852.21 and 66411.7) is not a project under CEQA. (Government Code Sections 65852.21(k) and 66411.7(n).)

BACKGROUND AND DISCUSSION
Proposed amendment to Napa County Code (NCC) sections due to current State housing law concerning Urban Lot Splits and Two-Unit Developments (Senate Bill 9 of 2021):
Planning, Building, and Environmental Services (PBES) Staff, County Counsel and outsi...

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