Rock Island Building Department

WSEC-R 2021 energy code compliance resources for builders and contractors in Rock Island, Douglas County.

Building Department

Rock Island Building Official

Phone
(509) 884-1261
Address
5 N Garden Ave, Rock Island, WA 98850
Hours
M-F 8am-5pm
Email
buildingri@nwi.net
Website
https://www.rockislandwa.gov/

Last verified: 2026-04-19

Code environment

Climate Zone

CZ5

Eastern WA — stricter insulation and air sealing minimums apply.

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 Rock Island Building Official.

Start your WSEC compliance check →
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