Adopted edition
IRC 2015 (Uniform Dwelling Code)
Effective
State · WI
Wisconsin building codes at a glance.
Statewide UDC based on IRC 2015. Cold-climate envelope rules dominate; statewide enforcement via DSPS.
WI Wisconsin
IECC zones 5A, 6A, 7 · ASCE 7 design wind 90–115 mph
Adoption model
Statewide
Permits issued: State
Coverage status
Indexed
Parcel layer + adopted-edition library + amendment overlay all live.
Climate zones (IECC)
5A · 6A · 7
Drives R-value, fenestration U-factor, and air-leakage envelope rules.
Design wind speed
90–115 mph
ASCE 7 Risk Category II, 3-second gust at 33 ft. Fastener spec follows.
Special zones
- HVHZ (not applicable)
- WUI (not applicable)
- FEMA SFHA overlays (present)
Compliance track
What's required to build here.
WI Uniform Dwelling Code (UDC) governs all 1-2 family dwellings. Statewide DSPS enforcement.
Statute reference: dsps.wi.gov/Pages/Programs/UniformDwellingCode/Default.aspx
County directory
All 72 counties in Wisconsin.
Each county page shows the adopted edition, county-level amendments, and permit-office contact.
- Adams County
- Ashland County
- Barron County
- Bayfield County
- Brown County
- Buffalo County
- Burnett County
- Calumet County
- Chippewa County
- Clark County
- Columbia County
- Crawford County
- Dane County
- Dodge County
- Door County
- Douglas County
- Dunn County
- Eau Claire County
- Florence County
- Fond du Lac County
- Forest County
- Grant County
- Green County
- Green Lake County
- Iowa County
- Iron County
- Jackson County
- Jefferson County
- Juneau County
- Kenosha County
- Kewaunee County
- La Crosse County
- Lafayette County
- Langlade County
- Lincoln County
- Manitowoc County
- Marathon County
- Marinette County
- Marquette County
- Menominee County
- Milwaukee County
- Monroe County
- Oconto County
- Oneida County
- Outagamie County
- Ozaukee County
- Pepin County
- Pierce County
- Polk County
- Portage County
- Price County
- Racine County
- Richland County
- Rock County
- Rusk County
- Sauk County
- Sawyer County
- Shawano County
- Sheboygan County
- St. Croix County
- Taylor County
- Trempealeau County
- Vernon County
- Vilas County
- Walworth County
- Washburn County
- Washington County
- Waukesha County
- Waupaca County
- Waushara County
- Winnebago County
- Wood County
Working in Wisconsin?
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For state-vs-state comparisons see the state comparison view, or browse the state directory.
Pull a WI code packet.
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