Idaho Falls Zoning & Land Use Guide
Last updated: Verified:
Key Zoning Facts
Regulatory Layers That Apply in Idaho Falls
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA Flood Zones: Applicable
- View FEMA Flood Map
County — Bonneville County
- Role: Property records, tax assessment, unincorporated area planning
City / Municipal
The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.
Overlay Districts
No overlay districts identified.
Private Restrictions
- HOA / CC&Rs common: Yes
- Check HOA CC&Rs for additional restrictions.
Primary Zoning Districts
| District Code | Name | Min Lot | Max Height | Front Setback | Side Setback | Rear Setback | FAR |
|---|---|---|---|---|---|---|---|
| R1 | Single-Family Residential | 9,000 sq ft | 35 ft | 25 ft | 8 ft | 25 ft | — |
| R3A | Multi-Family Residential | 3,000 sq ft | 50 ft | 20 ft | 10 ft | 20 ft | — |
| CC | Central Commercial | None | 75 ft | 0 ft | 0 ft | 0 ft | — |
ADU Rules in Idaho Falls
ADUs:Allowed
- Max Size
- 800 sq ft
- Max Height
- 25 ft
- Rear Setback
- 5 ft
- Side Setback
- 5 ft
- Parking
- 1 off-street space required
- Owner Occupancy
- Required
- Permit Timeline
- 30-60 days
Official Sources
Frequently Asked Questions
Frequently Asked Questions
Can I build an ADU in Idaho Falls?
Yes. Idaho Falls allows accessory dwelling units on qualifying residential lots. Contact the Planning and Building department for size limits and requirements.
How do I find the zoning for my property in Idaho Falls?
Use the city's GIS mapping portal or contact the Planning and Building department for a zoning verification.
What zones allow multi-family housing in Idaho Falls?
Multi-family housing is permitted in R2, R3, and R3A zones, as well as in the HC (Highway Commercial) and CC (Central Commercial) districts that allow mixed-use development.
Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, financial, or professional advice. Zoning codes and building regulations change frequently. Always verify current requirements with your local planning department and building authority before making any decisions.