Our ADU now covers our entire mortgage. This changed our family's life forever.
Remodeling in Tacoma
HSP ADU Builders in Tacoma.
ADU construction for Tacoma homeowners — detached backyard ADUs, garage conversions, and junior ADUs across Pierce County. Design, permits, and build under one team. WA L&I #HOMESSP787OM.
What we see, what we build, in Tacoma.
Tacoma's residential neighborhoods — from the craftsman bungalows in the North End to the post-war ranches near Point Ruston and the Tacoma Narrows — offer strong ADU potential. Pierce County and the city of Tacoma have expanded ADU allowances in recent years, and a significant base of homeowners is now converting garages, building backyard units, and adding junior ADUs to capture rental income or house extended family. Washington ADU rules allow detached units up to 1,000 sqft on most single-family lots; garage conversions are particularly straightforward because the shell already exists. WA L&I #HOMESSP787OM, bonded and insured.
Services in Tacoma
Services we provide in Tacoma.
Detached ADU
Standalone backyard ADUs — design, permits, and build under one contract. Rental income or multigenerational living.
Learn moreAttached ADU
ADUs attached to your home — structural engineering, permits, and build under one contract.
Learn moreGarage conversion
Garage-to-ADU conversions — fully permitted, design through finish, under one contractor.
Learn moreJunior ADU
Junior ADUs (JADUs) within your home — up to 500 sqft, fully permitted, with private entrance and kitchenette.
Learn moreWhy Tacoma customers pick HSP ADU Builders.
Pierce County and city of Tacoma permitting handled in-house. We are familiar with Washington ADU ordinance requirements and the specific structural considerations that come with older craftsman and post-war homes in the area.
In-house permitting
We handle city and county ADU permitting directly in California and Washington — no third-party expediters, no lost weeks. The permit timeline is built into your written proposal so you know what to expect.
Direct owner involvement
The owner is on every project. A dedicated project manager gives you regular on-site updates from start to finish.
Written proposals & timelines
Every project starts with a free consultation and a written proposal: line-item scope, permit timeline, and total cost. Change orders are written and approved before work proceeds.
Reviews
What our customers say.
on Google · 298 reviews
Service area beyond Tacoma
We also serve nearby Puget Sound communities.
HQ in San Diego, CA
Planning a remodel in Tacoma? Start with a free consultation.
Call 1-888-484-3132 or schedule online. We'll walk through the project on-site and put a written proposal in your hands.