Adopted edition
IRC 2021 (Alabama amendments)
City has its own adoption — separate from county.
AL · City
Huntsville, AL.
Huntsville, AL — building code: IRC 2021 (Alabama amendments).
Design wind speed
100 mph
ASCE 7 Risk Cat II, 3-second gust at 33 ft.
Climate zone (IECC)
2A
Drives R-value, fenestration U-factor, and air-leakage envelope rules.
Special zones
- HVHZ
- WBDR
- WUI
- FEMA SFHA possible
Permit office
Huntsville Building Department
ZIP coverage
24 ZIP codes inside Huntsville.
Each ZIP resolves to the correct city + county + state on every parcel lookup. Multi-jurisdiction parcels pick up amendments from each layer.
35801 35802 35803 35804 35805 35806 35807 35808 35809 35810 35811 35812 35813 35814 35815 35816 35824 35893 35894 35895 35896 35897 35898 35899
Working in Huntsville?
Pull an address-level code packet for any parcel in Huntsville. SkyCanvass resolves the address, looks up the Huntsville-specific amendments and the Madison County county and Alabama state floor, then emits a cited packet ready for permit submittal.
See the Madison County county overview, or the Alabama state directory .
Pull a Huntsville 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.