Home addition permits in unincorporated Pierce County, WA

How these numbers are made

Source: Pierce County Open Data, Permits - Pierce County (Permits_Pierce_County, from PALS Plus), read 20 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.

Building, mechanical, plumbing, manufactured-home, demolition, pool and sign permits Pierce County Planning & Public Works issues for unincorporated land only: Spanaway, Graham, Frederickson, Parkland, South Hill, Lake Tapps, the Key Peninsula, Gig Harbor peninsula and similar places. Tacoma, Lakewood, Puyallup, University Place, Gig Harbor city, Bonney Lake and the other cities run their own permit offices and are not in this file. Engineering, sewer and fire-prevention permits are left out.

• The county's open permit file names no contractor, so there are no contractor lists, rankings or firm pages for Pierce County.
• The value is the building valuation the county works out to set the permit fee (largely from floor area and type of construction); mechanical and plumbing permits carry none. It is not a final cost.
• The file has no property ZIP code, so there are no ZIP code pages for Pierce County.
• Electrical permits in Washington are issued by the state Department of Labor & Industries, not the county, so electrical work does not appear here; rooftop solar appears only when it needed a county building permit.
• Mechanical permits cover furnaces, heat pumps and air conditioning, and also gas piping, gas fireplaces and water heaters; those last are counted as plumbing when the description says so.
• A final date is the county's final date; permits the county cancelled are not counted.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →