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§ 02
When a permit is required
Permit triggers and exempt work for Union County
Building permits are required for all major construction within unincorporated Union County. Permit triggers include new construction, additions, major renovations, demolition, septic system installation, and land disturbance of 1 or more acres.
Farm buildings and farm structures located outside municipal limits are exempt from building code enforcement (but not from floodplain management or NFIP requirements) under Mississippi Code § 17-2-7.
Structures used for residential purposes are not eligible for the farm structure exemption.
- Exempt Farm buildings and farm structures located outside municipal limits are exempt from building code enforcement (but not from floodplain management or NFIP requirements) under Mississippi Code § 17-2-7.
- Exempt Structures used for residential purposes are not eligible for the farm structure exemption.
Note: Exemptions do not apply to floodplain management ordinances, FAA airspace restrictions, or residential structures. Confirm edge cases with the Board of Supervisors before proceeding.
Required documents
- Completed permit application
- Deed and property documentation
- Legal description of property
- Plat (if available)
- Construction plans and drawings
- Scope of work description
- Building code
- Union County must comply with Mississippi Code § 17-2-4 and has either adopted one of the last three editions of the International Building Code (IBC) or International Residential Code (IRC), or formally opted out by resolution. Verify adopted code edition and opt-out status directly with Board of Supervisors or through the MS Insurance Department UBC database.
- Permit validity
- Contact Board of Supervisors for permit validity period and expiration requirements.
- Owner-builder
- Property owners may perform work on their own property; confirm requirements with Board of Supervisors.
- Contractor requirements
- Contractors performing work valued at $50,000 or more must hold a Mississippi Board of Contractors (MSBOC) Residential or Commercial Builders License.
§ 03
Application process
Typical processing: Processing time varies; contact Board of Supervisors for estimate.
- 01 Verify that the project is located in unincorporated Union County (not within any municipality's city limits).
- 02 Contact the Union County Board of Supervisors at (662) 534-1902 to confirm current permit procedures and obtain application forms.
- 03 Submit completed application with property documentation (deed, legal description, plat if available).
- 04 Provide construction plans and scope of work description.
- 05 Pay applicable permit fees.
- 06 Receive permit prior to beginning construction.
- 07 Schedule required inspections with county inspector.
Typical processing time: Processing time varies; contact Board of Supervisors for estimate.
§ 04
Required inspections
Scheduling and sequence
How to schedule
- (662) 534-1902 (phone)
- Scheduling deadline
- Contact Board of Supervisors for scheduling procedures and deadlines.
- Inspection hours
- Contact Board of Supervisors for office hours.
Typical sequence: Standard inspection stages typically include foundation/footing inspection (before concrete), rough framing/MEP inspection (before walls close), and final inspection (upon completion). Confirm required stages with Board of Supervisors.
§ 05
Frequently asked
Common questions about unincorporated Union County permits
01 Do I need a building permit in unincorporated Union County, MS? ▸
Building permits are required for all major construction within unincorporated Union County. Permit triggers include new construction, additions, major renovations, demolition, septic system installation, and land disturbance of 1 or more acres.
02 How do I apply for a building permit in unincorporated Union County, MS? ▸
To apply for a building permit in unincorporated Union County, MS, follow these steps: 1. Verify that the project is located in unincorporated Union County (not within any municipality's city limits). 2. Contact the Union County Board of Supervisors at (662) 534-1902 to confirm current permit procedures and obtain application forms. 3. Submit completed application with property documentation (deed, legal description, plat if available). 4. Provide construction plans and scope of work description. 5. Pay applicable permit fees. 6. Receive permit prior to beginning construction. 7. Schedule required inspections with county inspector.
03 How long does it take to get a building permit in unincorporated Union County, MS? ▸
Building permit processing times in unincorporated Union County, MS typically run Processing time varies; contact Board of Supervisors for estimate.. Timelines can vary based on project complexity and current department workload.
04 What work is exempt from building permits in unincorporated Union County, MS? ▸
Not all construction work requires a permit in unincorporated Union County, MS. The following work is generally exempt: Farm buildings and farm structures located outside municipal limits are exempt from building code enforcement (but not from floodplain management or NFIP requirements) under Mississippi Code § 17-2-7.; Structures used for residential purposes are not eligible for the farm structure exemption.. Note: Exemptions do not apply to floodplain management ordinances, FAA airspace restrictions, or residential structures. Confirm edge cases with the Board of Supervisors before proceeding. When in doubt, confirm with the local building department before starting work.
05 How do I schedule a building inspection in unincorporated Union County, MS? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Union County, MS via: (662) 534-1902. Contact Board of Supervisors for scheduling procedures and deadlines..
last verified April 2026
source Union County Board of Supervisors ↗
entry id permits/mississippi/union/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with Union County Board of Supervisors before applying. Jaspector is not legal advice.