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
Last verified: 2026-04-19
Submittal notes
These apply at Thurston County County level — verify city-specific items directly with Lacey Community Development.
- Thurston County: Thurston County: The Habitat Conservation Plan (HCP) for Mazama pocket gophers affects siting on rural parcels outside urban growth areas — verify HCP compliance before permit submittal.
Code environment
Climate Zone
CZ4
Western WA — moderate climate requirements.
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 →