California Cities Going the Extra Mile to Support ADU Construction

A few jurisdictions have gone beyond conformity with state law to encourage the construction of accessory dwelling units in the state of California, like in San Diego.

2 minute read

August 17, 2020, 8:00 AM PDT

By James Brasuell @CasualBrasuell


Accessory Dwelling Unit

Nicolás Boullosa / Flickr

Cinnamon Janzer reports on San Diego County's approach to Accessory Dwelling Units, deployed last fall to further support ADU development beyond the allowances made by state law, by "offering free, pre-approved ADU floor plans and waiving $15,000 in permit and development fees to reduce the costs associated with construction."

Janzer quotes Gary Geiler, the development services director for the city of San Diego, to explain what the city is doing to support ADU construction in a city with notoriously high housing prices, much like the rest of the cities in the state. 

“We’ve had companion unit regulations on the books since the 90s,” Geiler says, “but they were more design-oriented and required conditional use permits. We didn’t get a lot of applications, maybe 10 in a year.” These days, those numbers are way up. “In 2017… we got an increase of over 100 applications that first year, so we said, ‘OK, we’re onto something here.’” The city has since done away with even more fees. “The applications increased even further,” Geiler says. “We had probably over 300 applications in 2018 and over 600 in 2019. So far we have about 200 new units this year and about 1,000 units applied for.”

Janzer also speaks with Caitlin Bigelow, a resident of the nearby city of La Mesa, who started the company Maxable to offer ADU consulting and services to Californians, who finds room for improvements for both the city and the county's efforts, finding fault especially with the pre-approved floor plans, and points to the example of San Jose for a model for improvement. 

"She’d like to see San Diego take an approach more like San Jose’s where the city opened up the plan design process to local design professionals and created something of a library of plan choices that offer more variety to meet the needs of different homeowners," reports Janzer.

Tuesday, August 4, 2020 in Next City

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 4, 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

White and yellow DART light rail train in Dallas, Texas with brick building in background.

DARTSpace Platform Streamlines Dallas TOD Application Process

The Dallas transit agency hopes a shorter permitting timeline will boost transit-oriented development around rail stations.

May 28, 2025 - Mass Transit

Nighttime view of downtown Los Angeles through arches of new 6th Street Viaduct.

Downtown Los Angeles Gears Up for Growth

A new report highlights Downtown L.A.’s ongoing revival through major housing projects, adaptive reuse, hospitality growth, and preparations for global events in the years ahead.

30 minutes ago - Los Angeles Downtown News

Supreme Court Statue

Supreme Court Landlord Appeal Case Could Overturn Tenant Protections

A legal case claiming that COVID-era eviction moratoriums were unconstitutional could spell trouble for tenant protections.

1 hour ago - Shelterforce Magazine

Distant view of oil derrick on barren plain with harsh sun in background.

Texas Moves to Curb Orphan Wells, But Critics Say Loopholes Remain

A proposed state law would shift financial responsibility for sealing unused drilling sites from the public to energy operators, though some advocates question its effectiveness due to industry-backed exemptions.

2 hours ago - Texas Public Radio

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.