Tacoma ADU Plans
ADU and Backyard Cottage Plans in Tacoma
Tacoma has alleys, detached garages, and big yards, which makes it a good city for backyard cottages. We check the lot, draw the plans, and take them through the City of Tacoma permit process.
Start with the lot
We check the zone, setbacks, lot size, parking, and utilities first. See Site Feasibility.
Types of ADU we draw
- Detached ADU (DADU)
- Garage conversion
- ADU over a garage
- Attached or basement ADU
What is in the package
- Full plans
- Energy credits (see Energy Credits)
- Structural engineering through Dow Engineering PLLC when needed
- Permit runner to submit and track
Building it yourself? See Owner Builder. Air leakage tests come from WA Blower Door. See also Tacoma Permits and ADU and DADU Plans.
We do not build and we do not engineer or stamp. Where engineering is required, our sister firm Dow Engineering PLLC, in the same office, handles it.
Send us your address
Send us the address, a few photos, and a sentence about what you want to build. Call 253-799-0606 · Email office@dowengineeringpllc.com · Contact Us
Build Sherpas is a trade name of Dow Engineering PLLC · 16202 64th St E Ste 117, Sumner, WA 98390 · By appointment