Michigan 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 |
|---|---|---|---|
| Detroit | 2021 | — | — |
| Flint | 2021 | — | — |
| Grand Rapids | 2021 | — | — |
Quirks & watch-items
Quirks & watch-items
- Michigan migrated through 2025 from a SPLIT state (IBC 2021 / IRC + IECC 2015) to a fully 2021-cycle state — Part 5 Residential filed May 1, 2025, effective Aug 29, 2025; Part 10a Commercial Energy effective April 22, 2025.
- MI uses "Michigan Building Code" / "Michigan Residential Code" branding — base model is the matching ICC year.
- Detroit's Construction Division page still references "2012 Michigan Building Code" — OUTDATED page; Building Codes page says 2021.
- IFC adoption is via local jurisdiction action (e.g., Ann Arbor) rather than a single LARA-level IFC rule; Michigan Bureau of Fire Services adopts NFPA personnel-qualification standards under R 29.410 (not the IFC itself).