Sammamish Building Department

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

Building Department

Sammamish Permit Center

Address
801 228th Ave SE, Sammamish, WA 98075
Hours
M-F 8:30am-5pm
Notes
uses MyBuildingPermit.com

Last verified: 2026-04-19

Code environment

Climate Zone

CZ4

Western WA — moderate climate requirements.

Radon Zone

Zone 2

Moderate potential — mitigation recommended.

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Ready to check your compliance?

wsec.ai generates a complete R406 credit summary you can submit with your permit application to Sammamish Permit Center.

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