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PermitRoadmap

Building permits in Franklin

Most construction, renovation, and repair work in Franklin, Williamson County needs a building permit from Building and Neighborhood Services. Below are the office's contact details and online portal, plus step-by-step guides for the projects homeowners ask about most, from roofing and solar to fences, sheds, pools, and HVAC.

Tennessee has no statewide dollar-value permit exemption; whether a permit is required in Franklin and any cost thresholds are set by the local building department, not the state. The state residential building code applies to new construction and additions over 30 square feet, and cities or counties that keep their adopted codes current within seven years of the latest edition administer and issue their own permits locally. Where a local government does not maintain a current code, the State Fire Marshal's Office administers the residential permit program through authorized issuing agents and the state's online CORE portal. Always confirm the exact requirements and fees with the office that has jurisdiction over your property.

Permit guides for Franklin

Roof replacement or repairWindow or exterior door replacementSolar panel installationShed or accessory structureAddition or structural alterationInterior remodelingScreen enclosure or pool cageFence installation or replacementSwimming pool or spaPavers, driveway, or hardscapeHVAC replacement or installationElectrical panel or service upgradeStandby generator installationWater heater replacementPlumbing fixture or repipingDeck construction or replacementEV charger installationAccessory dwelling unit (ADU)Patio cover or carportPergola or trellisBathroom remodelKitchen remodelRetaining wall constructionResidential demolitionGarage conversionBasement finishing

Permit FAQs for Franklin

Do I need a building permit in Franklin?
Most construction, renovation, and repair work in Franklin needs a permit, including structural changes, electrical, plumbing, mechanical, roofing, and pools. Small cosmetic work is sometimes exempt. Every project must still meet the Tennessee state-adopted building codes (the 2021 ICC family), even when a permit is not required. Check your exact project with the free PermitRoadmap check.
Who issues building permits in Franklin?
Building and Neighborhood Services issues permits for property inside Franklin, Williamson County. Your mailing city is not always the authority that permits your property, so confirm the jurisdiction before you apply. This page lists the department's phone, address, website, and online portal.
Can I pull my own permit as a homeowner in Franklin?
In Franklin, Tennessee's owner-builder exemption (TCA 62-6-103) lets a property owner build or improve a single residence for their own use, and not for resale, lease, or rent, without a contractor's license, but any worker they hire whose portion of the job is $25,000 or more must be a licensed contractor.
Is there a dollar amount under which no permit is needed in Franklin?
Not statewide. Tennessee sets no statewide dollar threshold that waives a building permit, so whether small or cosmetic work needs a permit is decided locally. Confirm the exempt-work list and any value threshold with Building and Neighborhood Services before you start.
How much does a permit cost and how long does it take in Franklin?
Fees and review times are set locally and change often, so confirm the current numbers with Building and Neighborhood Services or its online portal. Fees are usually based on the value of the work or a fixed schedule, and simple residential permits are frequently reviewed faster than new construction.

PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.