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When a permit is required
Permit triggers and exempt work for Hamilton County
Hamilton County states a building permit is required for any new, alteration, addition, or repair to a structure.
- Exempt Storage buildings 10 feet by 20 feet or less without plumbing or electrical
- Exempt Fences not over 7 feet in height
- Exempt Painting, papering, tiling, carpeting, cabinets, counter tops, and similar finish work
- Exempt Prefabricated swimming pools less than 24 inches deep, not greater than 5,000 gallons, and installed entirely above ground
- Exempt Swings and other playground equipment
- Exempt Sidewalks and driveways not more than 30 inches above adjacent grade, not over any basement or story below, and not part of an accessible route
- Online permit application and project-specific permit forms
- County application pages post building, electrical, gas, mechanical, and plumbing permit forms
- Building code
- 2018 IBC, 2018 IRC, 2018 IPC, 2018 IMC, 2018 IFGC, 2018 IFC, 2018 ISPSC, 2018 IECC, 2020 NEC, ANSI accessibility code 2017, and NFPA 101 2018, effective January 1, 2022
- Permit validity
- Not clearly posted on the public pages reviewed.
- Owner-builder
- The property owner may construct one single residence once every two years for the owner's own use, not for resale, lease, or rent. The state homeowner affidavit must be signed.
- Contractor requirements
- The county notes that anyone hired by the homeowner would be considered a prime contractor or construction manager and is not exempt from license requirements.
Application process
Typical processing: No public turnaround estimate located on the reviewed pages.
- 01 Register or log in to the county permit site.
- 02 Complete the online permit application for building or trade work.
- 03 Submit required permit documents and forms.
- 04 Licensed contractors may pay permit fees online; property owners may apply online but must visit the office to pay application fees.
- 05 Receive permit approval and issuance from the Building and Zoning Office.
- 06 Schedule inspections and maintain the permit record through the county system.
Typical processing time: No public turnaround estimate located on the reviewed pages.
Fee schedule
Hamilton County building permit fees
Licensed contractors with valid licenses may pay permit fees online. Other property owners must visit the office to pay application fees.
Required inspections
Scheduling and sequence
- Inspection hours
- Monday through Friday, 8:00 a.m. to 4:00 p.m.
Typical sequence: Project-specific by permit type; county issues building, electric, gas, mechanical, and plumbing permits and inspects for compliance.
Frequently asked
Common questions about unincorporated Hamilton County permits
01 Do I need a building permit in unincorporated Hamilton County, TN? ▸
02 How much does a building permit cost in unincorporated Hamilton County, TN? ▸
03 How do I apply for a building permit in unincorporated Hamilton County, TN? ▸
04 How long does it take to get a building permit in unincorporated Hamilton County, TN? ▸
05 What work is exempt from building permits in unincorporated Hamilton County, TN? ▸
06 How do I schedule a building inspection in unincorporated Hamilton County, TN? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Hamilton County Building Inspection Department before applying. Jaspector is not legal advice.