Will SB 9 and SB 10 Make Any Difference?

In dramatic fashion, the movement to undo single-unit zoning is going statewide in California with the passage of SB 9 in California. It's an emotional, moral victory for housing advocates—and a ton of work for the state's planners.

1 minute read

September 6, 2021, 9:00 AM PDT

By Josh Stephens @jrstephens310


California State Capital

cmshepard / Shutterstock

"Most broadly, the two wins are the biggest yet for the YIMBY movement. It has matured from a cheeky idea a few years ago into a true advocacy movement and a lobbying force. Its constituents--both vocal activists and a silent majority of renters, young adults, and other people who feel the direct pressure of the housing market--have only grown in number. The bigger the crowd, the louder the cheers."

"The real emotional punch, if something as staid as housing legislation could be said to have such a thing, comes in the form of SB 9. For all the housing bills that have addressed zoning, affordable housing finance, the Regional Housing Needs Allocation Process, density bonuses and all the other soporific arcana of planning, SB 9 operates at an enticingly human scale. It addresses that fundamental unit of human habitation: the house."

"If anything, SB 9 is going to be a bonanza of local control, as every single city in the state gets to decide how to implement it. They can consider design guidelines, parking regulations, financing mechanisms, fire safety, massing, setbacks, flat or sparkling, cream or sugar, and, yes, affordability incentives." 

Thursday, September 2, 2021 in California Planning & Development Report

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

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

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 16, 2025 - Diana Ionescu

Streetcar and bus stopped at station on Market Street in San Francisco with Ferry Building visible in background.

Waymo Gets Permission to Map SF’s Market Street

If allowed to operate on the traffic-restricted street, Waymo’s autonomous taxis would have a leg up over ride-hailing competitors — and counter the city’s efforts to grow bike and pedestrian on the thoroughfare.

April 16 - San Francisco Examiner

Parklet with wooden benches and flower boxes on street in Ireland.

Parklet Symposium Highlights the Success of Shared Spaces

Parklets got a boost during the Covid-19 pandemic, when the concept was translated to outdoor dining programs that offered restaurants a lifeline during the shutdown.

April 16 - Streetsblog San Francisco

Bronze statue of homeless man (Jesus) with head down and arm outstretched in front of St. Matthew Cathedral in Washington D.C.

Federal Homelessness Agency Places Entire Staff on Leave

The U.S. Interagency Council on Homelessness is the only federal agency dedicated to preventing and ending homelessness.

April 16 - The New York Times