Adopted edition
Coverage in progress
Inherits from WA state floor.
WA · County
Columbia County, WA.
Columbia County is in WA (IECC zone 5B, design wind 85 mph).
Design wind speed
85 mph
ASCE 7 Risk Cat II, 3-second gust at 33 ft. Drives fastener spacing, hold-downs, and opening protection.
Climate zone (IECC)
5B
Drives R-value, fenestration U-factor, and air-leakage envelope rules.
Special zones
- HVHZ
- WBDR
- WUI
- FEMA SFHA possible
Permit office
Columbia County County Building Department
Common amendments + overlays
What's specific to this county.
- §01WUI overlay — fire-resistant exterior + defensible space requirements.
Working in Columbia County?
Pull an address-levelcode packetfor any property in Columbia County. SkyCanvass resolves the parcel, looks up the adopted edition + the Columbia County-specific amendments listed above, and emits a cited packet ready for permit submittal.
See theWashington state overviewfor the broader context, or browse thestate directory.
Pull a Columbia County code packet.
Free to start — property lookups, state code access, the hail map, and your first storm report on us. No credit card required to look up an address.