Quantifying the Potential of California’s ‘Yes in God’s Backyard’ Bill

A new report estimates that 171,000 acres of land would be available for housing development if California approves SB 4, Affordable Housing on Faith and Higher Education Lands Act of 2023.

2 minute read

August 31, 2023, 9:00 AM PDT

By James Brasuell @CasualBrasuell


A new report [pdf] from the Terner Center for Housing Innovation at the University of California, Berkeley estimates the housing potential for land owned by faith-based institutions if the state of California were to approve Senate Bill 4, the “Affordable Housing on Faith and Higher Education Lands Act of 2023,” under consideration in the state legislature.

SB 4, authored by State Senator Scott Wiener (D-San Francisco) would “provide a streamlined approval process and baseline development standards for affordable housing on properties owned by FBO and nonprofit colleges,” according to a description of the law provided in an article by David Garcia, Quinn Underriner, Muhammad Alameldin, and Issi Romem that shares insight into report.

As for the findings of the study, the authors explain: “In the paper, we find that these organizations own a significant amount of land that would be eligible for SB 4 incentives, and that could be used for affordable housing. Specifically, we identified over 171,000 potentially developable acres statewide owned by FBOs or nonprofit colleges, which is nearly five times the size of the city of Oakland.”

The report also provides recommendations for additional opportunities to encourage development on land owned by faith-based organizations.

The “Yes In God’s Backyard” movement has gained momentum in recent years with laws like SB 4 and efforts by churches to overcome local opposition to deliver affordable housing. Planetizen first shared news of California’s SB 4 in December 2022.

Wednesday, August 30, 2023 in Terner Center for Housing Innovation

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

Cover CM Credits, Earn Certificates, Push Your Career Forward

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.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Color-coded map of labor & delivery departments and losses in United States.

The States Losing Rural Delivery Rooms at an Alarming Pace

In some states, as few as 9% of rural hospitals still deliver babies. As a result, rising pre-term births, no adequate pre-term care and harrowing close calls are a growing reality.

5 hours ago - Maine Morning Star

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

7 hours ago - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

June 15 - The Washington Post