Duplex Zoning Decisions in San Francisco
How duplex zoning requests are decided across San Francisco, CA council meetings, the vote and the conditions on the record
Duplex Zoning is one of the most actively tracked zoning topics in San Francisco, CA. ZoneWire has analyzed 5 council meetings and detected 7 instances of duplex zoning activity. Below are the most recent discussions.
What is Duplex?
A single building containing two separate dwelling units. Whether one can be built or converted depends on the lot's zoning district.
A duplex is one building divided into two self-contained dwelling units - side by side or stacked - on a single lot. It is the smallest step up from single-family development and the entry point of what planners call "missing middle" housing.
Read full definitionDuplex Zoning in San Francisco, CA
A single building containing two separate dwelling units. Whether one can be built or converted depends on the lot's zoning district. In San Francisco, CA, local government bodies regularly discuss duplex zoning as part of zoning and land use decisions.
ZoneWire has analyzed 5 meetings in San Francisco and detected 7 mentions of duplex zoning, an average of 1.4 mentions per meeting.
No material zoning changes in San Francisco in the last 30 days. We monitor every San Francisco, CA meeting and surface new opportunities here as they happen.
Recent Duplex Zoning meetings in San Francisco
Board of Supervisors - 2026-04-07
CompletedPlanning Commission - 2026-02-12
CompletedPlanning Commission - 2025-12-18
CompletedBoard of Appeals - 2025-12-17
CompletedWhy Track Duplex Zoning?
Whether a duplex is possible on a given lot comes down to the zoning district:
Duplex Zoning Regulations in California
California sets the regulatory framework that governs how duplex zoning decisions are made at the county and municipal level. State statutes define zoning authority, hearing requirements, and appeal processes that directly affect duplex zoning outcomes in San Francisco.
View all California zoning activityEvery Duplex Zoning decision in San Francisco
See how every duplex zoning request in San Francisco was decided: the vote, the conditions attached, and how it moved through its hearings.
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Duplex Zoning in Other Counties
Frequently Asked Questions
A duplex is one building divided into two self-contained dwelling units - side by side or stacked - on a single lot. It is the smallest step up from single-family development and the entry point of what planners call "missing middle" housing. ZoneWire tracks duplex zoning activity across San Francisco, CA public meetings.
ZoneWire monitors San Francisco, CA planning and council meetings, transcribes them, and flags duplex zoning activity. As of the latest update we have analyzed 5 meetings and detected 7 duplex zoning mentions.
Tracking duplex zoning in San Francisco surfaces zoning and development signals early, so developers, investors, and brokers can evaluate parcels and approvals before they reach the broader market.
The San Francisco Planning Commission, Board of Supervisors, and Zoning Administrator are all tracked by ZoneWire for CUA (Conditional Use Authorization) applications, discretionary review requests, 309 exceptions, housing density bonus projects, and rezoning across all San Francisco neighborhoods.
San Francisco has approximately 10 zoning-related meetings per month across the Planning Commission, Board of Supervisors, and various hearing bodies. The Planning Commission meets weekly, while the Board of Supervisors meets twice per month.
A CUA (Conditional Use Authorization) is a San Francisco planning approval required for certain uses or developments that are not permitted as of right in a given zoning district. CUAs are heard by the Planning Commission and are a key signal for new restaurants, bars, large retail, and residential projects in neighborhoods like the Mission and SoMa.
The highest volume of zoning activity in San Francisco occurs in SoMa for large mixed-use and residential towers, the Mission District for CUA and discretionary review applications, the Western Addition and Tenderloin for density bonus projects, and the Sunset and Richmond districts for ADU and housing production.
Key zoning terms for San Francisco include CUA (Conditional Use Authorization), discretionary review, 309 exception, housing density bonus, SUD (Special Use District), PUD (Planned Unit Development), office allocation, and large project authorization. ZoneWire tracks all of these automatically across every San Francisco governing body.
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Know how duplex zoning requests get decided in San Francisco, CA
Get the vote, the conditions, and how each duplex zoning request was decided, the day it lands.
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What gets approved in San Francisco
In San Francisco, 81% of land-use board decisions were approved over the last 24 months. Commercial / office / retail clear 88%, Special exception / conditional use 72%. ZoneWire analyzed 197 land-use board decisions in San Francisco over the last 24 months. Here are the most active project types and how often each one clears.
| Project type | Decisions | Approval rate |
|---|---|---|
| Commercial / office / retail | 52 | 88% |
| Special exception / conditional use | 39 | 72% |
| Single-family homes | 25 | 96% |
| Land use / comp-plan amendment | 24 | 88% |
| Variance | 15 | 47% |
| Multifamily / attached housing | 13 | 92% |
| Industrial / warehouse | 7 | 86% |
| Mixed-use | 7 | 57% |
11 decisions that went against the odds
These are the denials and deferrals in categories that usually sail through, the deals worth understanding before you commit capital.
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