Twin Falls Zoning & Land Use Guide
Key Zoning Facts
Twin Falls Zoning Overview
Twin Falls is the commercial and cultural hub of south-central Idaho's Magic Valley, perched on the rim of the Snake River Canyon. The city's economy is driven by agriculture, food processing, and regional services. The Planning and Zoning department manages a zoning code that reflects the city's role as a regional center serving a large rural area. The Snake River Canyon and Shoshone Falls create dramatic natural features that influence development patterns and land use along the canyon rim.
Key Zoning Districts
Twin Falls uses R-1 through R-4 residential zones, C-1 (Local Commercial), C-2 (General Commercial), and M-1 and M-2 industrial zones. The downtown core has commercial zoning encouraging mixed-use and infill development. Canyon rim overlay standards regulate development near the Snake River Canyon.
ADU Regulations
Twin Falls allows ADUs on residential lots with owner-occupancy and size restrictions. The city has been addressing housing demand from the growing Magic Valley agricultural and food processing workforce.
Development Process
Permits are processed through Planning and Zoning. The commission reviews subdivisions, conditional uses, and rezonings. Properties along the Snake River Canyon rim are subject to setback and environmental review requirements.
Regulatory Layers That Apply in Twin 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 — Twin Falls 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
- Min Lot
- 8,000 sq ft
- Max Height
- 35 ft
- Front Setback
- 20 ft
- Side Setback
- 5 ft
- Rear Setback
- 15 ft
- Min Lot
- 3,500 sq ft
- Max Height
- 45 ft
- Front Setback
- 20 ft
- Side Setback
- 10 ft
- Rear Setback
- 15 ft
- Min Lot
- None
- Max Height
- 50 ft
- Front Setback
- 0 ft
- Side Setback
- 0 ft
- Rear Setback
- 10 ft
ADU Rules in Twin Falls
- Max Size
- 750 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
Permit Costs & Timelines
Permit Costs & Timelines
Specific permit fee schedules for Twin Falls are available from the local planning department. Fees vary based on project type, scope, and valuation.
Check Twin Falls permit fees →