Zoning › State overlays › Iowa

Iowa State overlays

All 15 tracked preemption laws for Iowa.

Overview

All tracked preemption laws for Iowa. Click any law for its trigger predicate, preempted fields, and source citation.

Laws tracked
15
Preempted fields
38
Required city attrs
12
Last reviewed
2026-05-18
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Tracked laws

Iowa SF 592 (2025) — Statewide Accessory Dwelling Unit By-Right Mandate4 fields
Effective
2025-07-01
Authority
state · scope: state:IA
ID
IA_SF592_ADU_BY_RIGHT_2025
Open detail →
Iowa Code §414.1(2) — Short-Term Rental Preemption (Residential Use Classification)3 fields
Effective
2020-07-01
Authority
state · scope: state:IA
ID
IA_414_1_2_STR_PREEMPTION_2020
Open detail →
Iowa Code §459.310 — Master Matrix CAFO Siting Scorecard2 fields
Effective
2002-07-01
Authority
state · scope: state:IA
ID
IA_459_310_MASTER_MATRIX_CAFO_SITING
Open detail →
Iowa Code Ch. 161D — Loess Hills Development and Conservation Authority + Alliance2 fields
Effective
1999-03-15
Authority
state · scope: state:IA
ID
IA_161D_LOESS_HILLS_ALLIANCE
Open detail →
Iowa Code §414.28 / §335.30 — Manufactured Home Zoning Parity Mandate4 fields
Effective
1986-07-01
Authority
state · scope: state:IA
ID
IA_414_28_MANUFACTURED_HOME_PARITY
Open detail →
Iowa Code Ch. 303 — State Historical Society / SHPO Review + Local Historic Preservation Commissions2 fields
Effective
1986-07-01
Authority
state · scope: state:IA
ID
IA_CH303_HISTORIC_PRESERVATION_SHPO
Open detail →
Iowa Code §352.6 — Agricultural Area Designation + Right-to-Farm Nuisance Protection2 fields
Effective
1982-07-01
Authority
state · scope: state:IA
ID
IA_352_6_AGRICULTURAL_AREA_RTF
Open detail →
Iowa Code Ch. 455B + 567 IAC 71 — Floodplain Development Approval (DNR Flood Plain Program)2 fields
Effective
1972-07-01
Authority
state · scope: state:IA
ID
IA_455B_FLOODPLAIN_DEVELOPMENT_PERMIT
Open detail →
Iowa Code Ch. 461A + 571 IAC 13 — Sovereign Lands Construction Permits2 fields
Effective
1971-01-01
Authority
state · scope: state:IA
ID
IA_461A_SOVEREIGN_LANDS_PERMIT
Open detail →
Iowa Code Ch. 403 — Urban Renewal Law / Tax Increment Financing3 fields
Effective
1957-07-01
Authority
state · scope: state:IA
ID
IA_CH403_URBAN_RENEWAL_TIF
Open detail →
Effigy Mounds National Monument — Federal Adjacency Consultation Overlay (Allamakee + Clayton Counties)2 fields
Effective
1949-10-25
Authority
state · scope: state:IA
ID
IA_EFFIGY_MOUNDS_NPS_ADJACENCY
Open detail →
Iowa Code Chapter 335 — County Zoning Enabling Act + §335.2 Agricultural Exemption3 fields
Effective
1947-01-01
Authority
state · scope: state:IA
ID
IA_CH335_COUNTY_ZONING_AG_EXEMPTION
Open detail →
Iowa Code Ch. 329 — Airport Zoning / Airport Hazard Area Regulation2 fields
Effective
1945-07-01
Authority
state · scope: state:IA
ID
IA_CH329_AIRPORT_ZONING_HAZARD
Open detail →
Iowa Code Ch. 161A — Soil and Water Conservation Districts (Soil Loss Limits + Cost-Share)3 fields
Effective
1939-07-01
Authority
state · scope: state:IA
ID
IA_CH161A_SOIL_CONSERVATION_DISTRICTS
Open detail →
Iowa Code Chapter 414 — City Zoning Enabling Act2 fields
Effective
1924-01-01
Authority
state · scope: state:IA
ID
IA_CH414_CITY_ZONING_ENABLING
Open detail →

Required city attributes

Required city attributes

The evaluator needs these city-level facts present to resolve whether a given law's predicate fires.

  • population
  • county_population
  • is_home_rule
  • governance_type
  • in_unincorporated_county_territory
  • in_loess_hills_alliance_county
  • in_effigy_mounds_adjacency
  • has_airport_zoning_commission
  • has_urban_renewal_area
  • has_local_historic_preservation_commission
  • in_mississippi_river_corridor
  • in_missouri_river_corridor