Lacey Building Department

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

Building Department

Lacey Community Development

Phone
(360) 491-5642
Address
420 College St SE, Lacey, WA 98503
Hours
M-F 8am-5pm
Website
https://cityoflacey.org/community-development/

Last verified: 2026-04-19

Code environment

Climate Zone

CZ4

Western WA — moderate climate requirements.

Radon Zone

Zone 2

Moderate potential — mitigation recommended.

Learn more →

Ready to check your compliance?

wsec.ai generates a complete R406 credit summary you can submit with your permit application to Lacey Community Development.

Start your WSEC compliance check →
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