Accessory Dwelling Units Find Public Support in Tacoma, Washington

Tacoma, Washington, a city of over 200,000 residents in the Pacific Northwest, is making room for more.

2 minute read

March 6, 2019, 10:00 AM PST

By James Brasuell @CasualBrasuell


Tacoma Washington

Dicklyon / Wikimedia Commons

The city of Tacoma is considering a law that would allow "Detached Accessory Dwelling Units" in single-family neighborhoods throughout the city.

Rubén Casas reports that the law is receiving support from the public, as shown at a recent public hearing on the proposed law.

"The idea to allow more greater [sic] numbers of 'Detached Accessory Dwelling Units,' or DADUs, was first taken up by the city in December 2017 as part of the city’s larger Residential Infill Pilot Program. Since then, accessory dwelling units have been permitted as part of a pilot program," according to Casas.

Casas also provides an explanation of accessory dwelling unit as a housing policy tool to address housing affordability concerns—even in suburban communities like Tacoma. Particularly telling about the huge impact incremental changes to zoning codes can potentially achieve, Casas rights about the potential benefits of accessory dwelling units:

More housing options like ADUs can mean the difference between losing one’s home because a homeowner can no longer afford a mortgage and being able to keep their home because they have an additional source of income; a DADU permits senior citizens the opportunity to age in place; a DADU makes it possible for a child to return home after college or after losing a job in an economy where the cost of college doesn’t match the earning power of college graduates; DADUs, as they are rented at a lower price than market-rate apartments, allow working-class and members of the service industry to live near their workplaces.

Monday, March 4, 2019 in The Urbanist

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

Concrete Brutalism building with slanted walls and light visible through an atrium.

What ‘The Brutalist’ Teaches Us About Modern Cities

How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

February 28, 2025 - Justin Hollander

Complete Street

‘Complete Streets’ Webpage Deleted in Federal Purge

Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

February 27, 2025 - Streetsblog USA

Green electric Volkswagen van against a beach backdrop.

The VW Bus is Back — Now as an Electric Minivan

Volkswagen’s ID. Buzz reimagines its iconic Bus as a fully electric minivan, blending retro design with modern technology, a 231-mile range, and practical versatility to offer a stylish yet functional EV for the future.

March 3, 2025 - ABC 7 Eyewitness News

View of mountains with large shrubs in foreground in Altadena, California.

Healing Through Parks: Altadena’s Path to Recovery After the Eaton Fire

In the wake of the Eaton Fire, Altadena is uniting to restore Loma Alta Park, creating a renewed space for recreation, community gathering, and resilience.

March 9 - Pasadena NOw

Aerial view of single-family homes with swimming pools in San Diego, California.

San Diego to Rescind Multi-Unit ADU Rule

The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

March 9 - Axios

Close-up of row of electric cars plugged into chargers at outdoor station.

Electric Vehicles for All? Study Finds Disparities in Access and Incentives

A new UCLA study finds that while California has made progress in electric vehicle adoption, disadvantaged communities remain underserved in EV incentives, ownership, and charging access, requiring targeted policy changes to advance equity.

March 9 - UCLA Luskin Center for Innovation