Issaquah Building Department
WSEC-R 2021 energy code compliance resources for builders and contractors in Issaquah, King County.
Building Department
Issaquah Development Services Department
- Phone
- (425) 837-3100
- Address
- 1775 12th Ave NW, Issaquah, WA 98027
- Hours
- M-F 8am-5pm
- Website
- https://www.issaquahwa.gov/
- Portal
- Online permit portal →
- Notes
- uses MyBuildingPermit.com
Last verified: 2026-04-19
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 Issaquah Development Services Department.
Start your WSEC compliance check →