Idaho Zoning & Land Use Guide
Last updated: Verified:
Comprehensive guide to Idaho zoning laws, building codes, and land use regulations.
Key Facts
- Building Code: No mandatory statewide building code; local adoption
- State ADU Law: Varies by city
- ADU Details: Idaho has no statewide ADU law. Accessory dwelling unit regulations are determined entirely by local jurisdictions, and policies vary widely across cities and counties.
Official Sources
Cities in Idaho
Ammon
Pop.
ADU: Restricted
Blackfoot
Pop.
ADU: Restricted
Boise
Pop. 235,684
ADU: Allowed
Caldwell
Pop. 59,684
ADU: Allowed
Chubbuck
Pop.
ADU: Restricted
Coeur d'Alene
Pop. 54,628
ADU: Allowed
Eagle
Pop. 31,713
ADU: Allowed
Garden City
Pop.
ADU: Restricted
Hayden
Pop.
ADU: Restricted
Idaho Falls
Pop. 65,957
ADU: Allowed
Jerome
Pop.
ADU: Restricted
Kuna
Pop. 27,658
ADU: Allowed
Lewiston
Pop. 33,894
ADU: Allowed
Meridian
Pop. 117,635
ADU: Allowed
Moscow
Pop. 25,435
ADU: Allowed
Mountain Home
Pop.
ADU: Restricted
Nampa
Pop. 100,200
ADU: Allowed
Pocatello
Pop. 56,320
ADU: Allowed
Post Falls
Pop. 39,964
ADU: Allowed
Rexburg
Pop. 35,399
ADU: Allowed
Star
Pop. 11,580
ADU: Allowed
Twin Falls
Pop. 51,807
ADU: Allowed
Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, financial, or professional advice. Always verify current requirements with your local planning department.