Setback Requirements in Tacoma, WA (2026)

Can I build an ADU on my Tacoma property?

Yes. Washington HB 1337 (2023) requires Tacoma to allow at least 2 ADUs per single-family lot by-right, without owner-occupancy requirements. ADUs are limited to 1,000 sqft. No owner-occupancy requirement. Tacoma has updated its Municipal Code to comply with state law. The permit must be processed ministerially. Contact Tacoma Planning and Development Services for specific requirements.

How does Tacoma's housing market compare to Seattle?

Tacoma's housing is significantly more affordable than Seattle — median home prices are roughly 25-35% lower. Tacoma is in the Seattle-Tacoma-Bellevue MSA and many residents commute to Seattle via Sound Transit's Sounder commuter train or light rail. This makes Tacoma attractive for buyers priced out of Seattle. The downtown has undergone significant revitalization with museums (Museum of Glass, Tacoma Art Museum), restaurants, and the University of Washington Tacoma campus.

What is Joint Base Lewis-McChord and how does it affect Tacoma's housing?

Joint Base Lewis-McChord (JBLM) is a combined Army (Fort Lewis) and Air Force (McChord Air Force Base) installation located adjacent to Tacoma, making it one of the largest military installations on the West Coast. JBLM has approximately 40,000 active duty personnel plus families — creating enormous housing demand in Tacoma and Pierce County. Military housing allowances often support higher rental rates in Tacoma neighborhoods near transit routes to JBLM. For ADU investors, JBLM creates stable rental demand.

Who provides electricity in Tacoma?

Most of Tacoma is served by Tacoma Public Utilities (TPU), a city-owned utility. This distinguishes Tacoma from areas served by Puget Sound Energy. TPU rates are generally competitive and the city-owned structure can be more flexible on solar interconnection. For solar installations, you'll need an electrical permit from Tacoma Planning and an interconnection agreement with TPU. Some Tacoma areas near city limits may be served by Puget Sound Energy — verify your service provider.

What should I know about Tacoma's hillside neighborhoods?

Tacoma has many neighborhoods on hills with views of Puget Sound and Mount Rainier. These hillside neighborhoods (North End, Proctor District, Stadium District) are highly desirable but come with geologically hazardous area designations on many properties. Landslide risk affects some hillside lots — geological reports may be required for building permits near steep slopes. Tree removal near steep slopes requires additional review. The views are spectacular but the slopes require careful due diligence before construction.