Adopted edition
IRC 2021
City has its own adoption — separate from county.
TN · City
Chattanooga, TN.
Chattanooga, TN — building code: IRC 2021.
Design wind speed
90 mph
ASCE 7 Risk Cat II, 3-second gust at 33 ft.
Climate zone (IECC)
3A
Drives R-value, fenestration U-factor, and air-leakage envelope rules.
Special zones
- HVHZ
- WBDR
- WUI
- FEMA SFHA possible
Permit office
Chattanooga Building Department
connect.chattanooga.gov/land-developmentZIP coverage
20 ZIP codes inside Chattanooga.
Each ZIP resolves to the correct city + county + state on every parcel lookup. Multi-jurisdiction parcels pick up amendments from each layer.
3740137402374033740437405374063740737408374093741037411374123741437415374163741937421374223742437450
Working in Chattanooga?
Pull an address-levelcode packetfor any parcel in Chattanooga. SkyCanvass resolves the address, looks up the Chattanooga-specific amendments and the Hamilton county and Tennessee state floor, then emits a cited packet ready for permit submittal.
See theHamilton countyoverview, or theTennessee state directory.
Pull a Chattanooga 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.