Appetite for ADUs Rises in San Jose

San Jose has issued a steadily-rising number of ADU permits in recent years. Now, Mayor Sam Liccardo has implemented measures to ease the process for homeowners who want to build granny flats.

1 minute read

August 30, 2019, 10:00 AM PDT

By Philip Rojc @PhilipRojc


Accessory Dwelling Unit

Nicolás Boullosa / Flickr

According to San Jose Mayor Sam Liccardo, accessory dwelling units (ADUs) are "the single fastest and most efficient step in addressing the city's affordable housing crisis," Emily DeRuy reports. "And with the city struggling to meet the mayor's goal of building 25,000 units — including 10,000 affordable homes —  by 2022, accessory dwelling units are also a way to add to the city's housing stock."

From January through June of 2019, San Jose issued 191 ADU permits, exceeding 2018's annual total of 190 as well as a mere 91 in 2017. According to polls, almost a third of San Jose residents are interested in having an ADU on their property, and the city says over half of its single-family homes would qualify.

To ease the permitting process, the city has rolled out measures including a set of pre-approved ADU designs, an express lane at the city's permitting center, and an online portal to help residents understand what steps to take.

"Other cities in the region are implementing their own changes [...] And those policy tweaks are paying off," DeRuy writes. ADU applications are on the rise throughout the region, especially as more families turn to "multi-generational living arrangements" in the face of sky-high housing costs.

Tuesday, August 27, 2019 in The Mercury News

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

Close-up of "Apartment for rent" sign in red text on black background in front of blurred building

Trump Administration Could Effectively End Housing Voucher Program

Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

April 21, 2025 - Housing Wire

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

Washington

Washington State’s Parking Reform Law Could Unlock ‘Countless’ Acres for New Housing

A law that limits how much parking cities can require for residential amd commercial developments could lead to a construction boom.

May 1 - Streetsblog USA

Bluebird sitting on branch of green bush.

Wildlife Rebounds After the Eaton Fire

Following the devastation of the Eaton Fire, the return of wildlife and the regrowth of native plants are offering powerful signs of resilience and renewal.

May 1 - AP News

1984 Olympics

LA to Replace Inglewood Light Rail Project With Bus Shuttles

LA Metro says the change is in response to community engagement and that the new design will be ready before the 2028 Olympic Games.

May 1 - Newsweek

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.