Before full plans, check what the lot allows. We look at zoning, setbacks, height, and lot coverage; ADU rules; critical areas and slopes; utilities and septic or sewer; and whether a pre-application meeting helps. Geotech, survey, and septic work come from specialists when needed.
Plain-language findings and open questions. No guaranteed approvals.
Related pages: Build Planning, Permit Help, and Architectural. Stuck on a permit? Call 253-799-0606 or email office@buildsherpas.com, or use Contact Us. Build Sherpas is a trade name of Dow Engineering PLLC · 16202 64th St E Ste 117, Sumner, WA 98390
Copyright © 2026 Build Sherpas. Part of the Dow Engineering family in Sumner, WA: Dow Engineering PLLC (structural and civil engineering), Build Sherpas (plans and permits), WA Blower Door (energy code testing). 16202 64th St E Ste 117, Sumner, WA 98390 · (253) 799-0606 · office@buildsherpas.com
Areas we serve: Sumner · Puyallup · Tacoma · Bonney Lake · Auburn
ADU plans: Tacoma · Puyallup · Garage conversions
A Dow Engineering PLLC Company