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Home / Tennessee Permits / Williamson County

Building Permits in Williamson County, Tennessee

County jurisdiction
Local details being verified — statewide baseline shown

Adopted Construction Codes

These are the state-level code editions for Tennessee. They apply in Williamson Countyunless a verified local adoption or amendment is noted — in local-adoption states, confirm the city or county's own code editions with the building department.

CodeEditionAdoption
IBC — International Building Code2021Tenn. Comp. R. 0780-02-02 · source ↗
IEBC — International Existing Building Code2021Tenn. Comp. R. 0780-02-02 · source ↗
IFC — 2021Tenn. Comp. R. 0780-02-02 · source ↗
IFGC — International Fuel Gas Code2021Tenn. Comp. R. 0780-02-02 · source ↗
IMC — International Mechanical Code2021Tenn. Comp. R. 0780-02-02 · source ↗
IPC — International Plumbing Code2021Tenn. Comp. R. 0780-02-02 · source ↗
IRC — International Residential Code2018Tenn. Comp. R. 0780-02-23 · source ↗
NEC — National Electrical Code (NFPA 70)2017Tenn. Comp. R. 0780-02-01 · source ↗

Permit Requirements

Permit-type details for Williamson County (fees, required documents, inspection sequence) are being verified with the local building department. In the meantime, contact the county building department directly, or ask the BuildSpec Copilot about statewide requirements.

Building Department

Building department website ↗

Phone: 615-790-5718

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Related on BuildSpec

Tennessee adopted codes →Tennessee DOT specifications →Code calculators →