A DADU — detached accessory dwelling unit — is a fully independent structure built on your existing lot, separate from your main home. An ADU can be attached or interior. Both are legal, permitted living spaces — the difference is whether they're connected to the primary structure or freestanding.

Most single-family lots in Tacoma zoned R-1 or R-2 allow DADUs. Setback requirements, lot size minimums, and allowable square footage vary by zone. We do a free lot assessment to give you a definitive answer before any money changes hands.

Costs vary based on model size, lot conditions, utility connections, and finish level. Our completed projects range from our compact McKinley model through to fully finished 1,000 sq ft builds. Contact us for a real number based on your specific lot and goals.

From consultation to certificate of occupancy, most Tacoma projects run 10–14 months. Permit timelines at the City of Tacoma and TPU utility approval are the biggest variables — we'll give you a realistic timeline based on current conditions when we assess your lot.

Tacoma updated its DADU setback rules in February 2025, reducing the rear setback requirement to 10 feet. Side setbacks vary by zone. We verify your specific parcel before design begins to make sure we're maximizing your buildable area.

Yes — permitting is included in our full-service process. We handle the entire City of Tacoma permit application, TPU coordination, and all required inspections through to certificate of occupancy.