What design criteria do I need to meet?

The Washington State Building Code includes the 2015 International Building Code (IBC) and International Residential Code (IRC) as adopted pursuant to the Cowlitz County Code (CCC) Title 16.  Please see our Design Criteria page for more details.

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1. What kind of work requires a building permit?
2. Where do I get an electrical permit?
3. What design criteria do I need to meet?
4. Where do I get a Mobile Home Alterations Permit?