Tacoma Building Department

WSEC-R 2021 energy code compliance resources for builders and contractors in Tacoma, Pierce County.

Building Department

Tacoma Planning and Development Services

Phone: (253) 591-5000
Address: 747 Market St, Tacoma, WA 98402
Hours: M-F 8am-5pm
Website: https://www.cityoftacoma.org/cms/One.aspx?portalId=169&pageId=12140
Notes: first-class city

Last verified: 2026-04-19

Code environment

Climate Zone

CZ4

Western WA — moderate climate requirements.

Radon Zone

Zone 2

Moderate potential — mitigation recommended.

Ready to check your compliance?

wsec.ai generates a complete R406 credit summary you can submit with your permit application to Tacoma Planning and Development Services.