Overview
Preemption classification
Tier D — Restricts locals
2025 partial ADU reform (mostly permissive). Bans rent control. Slight pro-housing tilt emerging but still primarily restrictive.
Governance
Statewide
Building and zoning code adoption is mandated at the state level.
Adopted building codes
Statewide
City-level IBC adoptions (3)
| City | IBC | Amendment notes |
|---|---|---|
| Cedar Rapids | 2024 | |
| Des Moines | 2024 | |
| Sioux City | 2024 |
View building-code adoption for Iowa →
5 of 5 codes adopted (IBC, IRC, IECC, IFC, NEC)
Profiled counties
Cities
Showing 3 of 3
| City | Population | Code | Status | Issues |
|---|---|---|---|---|
| Cedar Rapids | — | Chapter 32, Code of Ordinances · 9 districts | V1 Legacy | schema:v1-legacypriority:lowdata:gaps-present |
| Des Moines | — | Chapter 134 — Zoning (adopted October 16, 2019, Ordinance No. 15,816) · 31 districts | V1 Legacy | schema:v1-legacypriority:lowdata:gaps-present |
| Sioux City | — | Title 25 Zoning and Sign Code (Revised 2020s) · 9 districts | V1 Legacy | schema:v1-legacypriority:lowdata:gaps-present |
Research status
Data quality
0%completeness3 not found