Duncan Zoning & Land Use Guide
Last updated: Verified:
Key Zoning Facts
Regulatory Layers That Apply in Duncan
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
State — Oklahoma
- Building Code: No mandatory statewide residential code; local adoption
County — Stephens 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 |
|---|---|---|---|---|---|---|---|
| R-1 | Single-Family Residential | 7,000 sq ft | 35 ft | 25 ft | 5 ft | 20 ft | — |
| R-3 | Multi-Family Residential | 3,000 sq ft per unit | 40 ft | 25 ft | 10 ft | 20 ft | — |
| C-2 | General Commercial | None | 40 ft | 15 ft | 0 ft | 15 ft | — |
ADU Rules in Duncan
ADUs:Not Allowed
- Max Size
- N/A
- Max Height
- N/A
- Rear Setback
- N/A
- Side Setback
- N/A
- Parking
- N/A
- Owner Occupancy
- N/A
- Permit Timeline
- N/A
Official Sources
Frequently Asked Questions
Frequently Asked Questions
Can I build an ADU in Duncan?
Duncan does not currently have specific ADU provisions. Contact the Planning Department for information about accessory structures.
How do I find the zoning for my property in Duncan?
Contact the Duncan Planning Department at (580) 252-0256 for zoning lookup assistance.
What zones allow multi-family housing in Duncan?
Multi-family housing is allowed in R-3 and higher residential districts.
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.