DE
Delaware Building Codes
Current base code, county-level adoption data, special-zone overlays, and source links for restoration contractors.
Counties
3
ZIPs
99
Special zones
130
Local amendments
0
Current State Code
Verified state-level adoption record from SkyCanvass jurisdiction data.
Adoption model
statewide
Base code
irc_2018
Effective date
2019-07-01
Next update
Not scheduled
Delaware adopted 2018 I-Codes statewide. Climate Zone 4A. 3 counties (New Castle, Kent, Sussex). Coastal flood zones along Delaware Bay and Atlantic.
County Guides
County pages include local code editions, amendment flags, and jurisdiction-specific links.