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§ 02
When a permit is required
Permit triggers and exempt work for Custer County
No building permit is required in unincorporated areas; county right-of-way permits are required for encroachments to or on county right-of-ways, and floodplain development permits are required in special flood hazard areas.
All work in unincorporated areas is not subject to a county building permit, per county letter.
County right-of-way work is not exempt if it encroaches on county right-of-way.
Floodplain construction and development is not exempt if located in a special flood hazard area.
- Exempt All work in unincorporated areas is not subject to a county building permit, per county letter.
- Exempt County right-of-way work is not exempt if it encroaches on county right-of-way.
- Exempt Floodplain construction and development is not exempt if located in a special flood hazard area.
Required documents
- County right-of-way permit form
- Floodplain documentation if applicable
- Building code
- County letter states there are no county zoning or fire safety and health regulations, except state statutes or city ordinances; no county building permit requirement in unincorporated areas.
§ 03
Application process
Application → plan check → issuance → inspection → final
- 01 Confirm the property is outside city limits and not on tribal land or in a special flood hazard area.
- 02 If the work affects county right-of-way, obtain the county permit form and submit it to the county office.
- 03 If the project is in a floodplain, obtain a development permit from the county.
- 04 County states there is no building permit requirement in unincorporated areas.
§ 04
Frequently asked
Common questions about unincorporated Custer County permits
01 Do I need a building permit in unincorporated Custer County, OK? ▸
No building permit is required in unincorporated areas; county right-of-way permits are required for encroachments to or on county right-of-ways, and floodplain development permits are required in special flood hazard areas.
02 How do I apply for a building permit in unincorporated Custer County, OK? ▸
To apply for a building permit in unincorporated Custer County, OK, follow these steps: 1. Confirm the property is outside city limits and not on tribal land or in a special flood hazard area. 2. If the work affects county right-of-way, obtain the county permit form and submit it to the county office. 3. If the project is in a floodplain, obtain a development permit from the county. 4. County states there is no building permit requirement in unincorporated areas.
03 What work is exempt from building permits in unincorporated Custer County, OK? ▸
Not all construction work requires a permit in unincorporated Custer County, OK. The following work is generally exempt: All work in unincorporated areas is not subject to a county building permit, per county letter.; County right-of-way work is not exempt if it encroaches on county right-of-way.; Floodplain construction and development is not exempt if located in a special flood hazard area.. When in doubt, confirm with the local building department before starting work.
last verified April 2026
source Custer County Commissioners / Zoning Office ↗
entry id permits/oklahoma/custer/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with Custer County Commissioners / Zoning Office before applying. Jaspector is not legal advice.