Kentucky Building code adoption
Statewide mandatory minimum · 3 cities tracked · 0 with amendments.
Overview
Governance
Statewide
Cities tracked
3
The state sets a single mandatory edition for every jurisdiction. Cities may only adopt more restrictive amendments, never less.
Adopted building codes (state level)
Statewide mandatory minimum. Click a code to open its full adoption atlas across all 50 states.
City-level adoption
| City | IBC edition | Amendments | Note |
|---|---|---|---|
| Bowling Green | 2015 | — | — |
| Lexington | 2015 | — | — |
| Louisville | 2015 | — | — |
Quirks & watch-items
Quirks & watch-items
- NAMING TRAP**: "2018 KBC" is based on 2015 IBC — the "2018" is the KY adoption year
- KBC is a "mini/maxi" code — statewide uniform, local governments SHALL NOT adopt any other building code
- EXTREMELY split energy codes: 2012 IECC for commercial, **2009 IECC for residential** — 17 years behind current
- KBC 4th Edition (Feb 2024) incorporates amendments through that date but base is still 2015 IBC
- KRC 3rd Edition (Aug 2024) incorporates amendments through that date but base is still 2015 IRC
- Louisville Ordinance § 150.001 adopts KBC and KRC in full
- 2023 NEC adoption requires permits pulled on/after Jan 1, 2025 to comply; some 1- and 2-family residential articles delayed to July 15, 2026 (e.g. 210.52(C), 230.67, 314.27(C))