San Francisco Just Ended Single-Family Zoning

The San Francisco Board of Supervisors voted to Tuesday to eliminate single-family zoning, but pro-development advocates say additional changes are needed to unleash a wave of construction.

2 minute read

June 29, 2022, 9:00 AM PDT

By James Brasuell @CasualBrasuell


Car Traffic

oleschwander / Shutterstock

“San Francisco plans to get rid of single-family zoning and instead allow fourplexes in every neighborhood and six-unit homes on all corner lots, a change long sought by housing development advocates,” reports J.D. Morris in a paywalled article for the San Francisco Chronicle.

“Currently, about 40% of San Francisco’s land area is zoned for only single-family homes. The ordinance rezones all those areas to allow duplexes by default. Property owners can then receive a density exception from the city that allows them to build up to four units, six on corner lots,” reports Morris for more details about the ordinance.

According to Morris, Supervisor Rafael Mandelman has championed the legislation for over a year, finally crossing the finish line this week after revising the plan last summer.

Skepticism about the effect of the planed zoning changes are multiple. “Some supervisors opposed the legislation because it circumvents the fast-tracked permit approval process required by a new state law — SB9 — that was passed to promote the construction of more multi-unit housing,” writes Morris, for example. Other pro-development advocates fault the law for placing obstacles in the way of receiving the density exception to build four to six units. All developments of more than two units will also require rent control—which many economists and housing experts have classified as deterrent to development.

Richard Hillis, the city’s planning director, is quoted in the article saying the effect of the ordinance is likely to be “fairly small” but the change is still a “pretty big step.” Supervisor Mandelman is also quoted in the article sharing a similar sentiment. “I share the frustration of those who feel that a measure that was already modest and incremental to begin with ended up even more so after working its way through the legislative process, but I believe today’s vote is nonetheless a move in the right direction for San Francisco,” said Supervisor Mandelman.

Tuesday, June 28, 2022 in San Francisco Chronicle

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

People biking along beach path with moored ship in San Diego, California.

San Diego Adopts First Mobility Master Plan

The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

2 hours ago - SD News

Sleeping in Public

Housing, Supportive Service Providers Brace for Federal Cuts

Organizations that provide housing assistance are tightening their purse strings and making plans for maintaining operations if federal funding dries up.

3 hours ago - KSL

Conductor walks down platform next to Amtrak train at station in San Jose, California.

Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement

An outdated rail network that privileges freight won’t be fixed by privatizing Amtrak.

4 hours ago - Streetsblog USA

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Building Inspector

Village of Glen Ellyn

Manager of Model Development

Central Transportation Planning Staff/Boston Region MPO

Senior Planner

Heyer Gruel & Associates PA