Building permits, zoning and land rules in Jefferson County, Tennessee

In unincorporated Jefferson County, building permits are required for garages, new nonportable buildings and additions; the exception covers structures used strictly for agriculture¹. Jefferson County states that it adopted the 2018 International Residential Codes, although an older FAQ on the same page refers to the 2012 code; ask the Building Department which edition governs your design¹. A house application needs the warranty deed, survey or plat, septic approval and home/garage square footage, plus two copies of plans or drawings¹. A nonconforming single-wide mobile home may be replaced within six months with Health Department approval and a building permit⁵.

The Jefferson County Building Department handles building permits at 202 W. Main Street, Dandridge, TN 37725, phone 865-397-0640⁷. Submit two copies of plans or drawings; the county lists a two-day review waiting period, with longer review possible¹. Septic approval comes before purchasing the building permit at the courthouse Zoning Office^3,4. Building-permit applicants also need a free Highway Department driveway permit⁸. We could not confirm building-permit fees; ask the Building Department for a project-specific total⁷. Published zoning fees are $100 for rezoning, $50 for a Board of Zoning Appeals matter, $100 for site-plan review or other Regional Planning Commission matters, and $125 for subdivision plat approval; the page dates the schedule to 2007, so confirm current charges with the Zoning Department⁵.

Jefferson County zoning applies in unincorporated areas, while municipalities apply zoning inside their corporate limits². Morristown, a city reaching into Jefferson County but mainly in Hamblen County, administers its own zoning⁹. Jefferson County Environmental Health remains the county septic-permit office³. Ask the county Zoning Department for the parcel’s district and permitted uses⁵. A-1 and R-1 front setbacks are 30 feet; side and rear setbacks are 10 feet in A-1 and 12 feet in R-1⁵. Unattached accessory buildings must be beside or behind the house, with side/rear setbacks of 5 feet in A-1 and 7 feet in R-1; confirm parcel-specific setbacks because property size can affect them⁵. An A-1 lot needs 40,000 square feet with Health Department septic approval and 50 feet of county-road frontage⁵. A second dwelling requires a separate surveyed tract⁵. Short-term rentals in unincorporated Jefferson County need a permit before operation, with a $250 application fee and $200 annual renewal fee¹⁰.

Jefferson County Environmental Health issues septic permits for new construction, and septic-system construction, modification or repair requires a septic permit^3,4. Obtain septic approval before the building permit⁴. A subdivision application needs the lot number and subdivision name; other property needs a recorded plat and soil map, with the proposed house site’s four corners staked before application⁴. The septic permit fee is $500, payable to the Jefferson County Trustee⁴. The installer must arrange final approval before covering the system, with building-permit and 911-address verification available for inspection⁴. Subdivision plans must show feasible utility connections; where connections are impracticable, individual water supply or sewage disposal requires health-authority approval¹¹. About 27.9% of county soils rate free of severe limits for conventional drain fields, making site evaluation an early purchase consideration⁶.

Jefferson County's published rules do not confirm a complete answer for living in an RV; ask the Zoning Department about the parcel and proposed use⁵. A tiny home intended for residential occupancy must meet the residential codes adopted in the jurisdiction, and a ready-removable may not be converted to residential, recreational or emergency housing¹. The county's tiny-home guide also rejects park-model recreational vehicles and converted yard barns, storage buildings, shipping containers or other prebuilt structures as dwellings¹². The guide requires a permanent foundation and at least one habitable room with 120 square feet of clear floor area¹². Unincorporated Jefferson County allows only one dwelling unit on a property, so a second tiny home would require a separate qualifying tract⁵. We could not confirm temporary-camping or long-term RV-occupancy rules; ask the Zoning Department about the proposed use⁵.

1. Ask the Zoning Department for the parcel's district, permitted uses and setbacks before placing the house⁵.
2. Obtain the required Highway Department driveway permit; the county lists no charge, while access from a state highway requires a TDOT permit^8,13.
3. Apply to Environmental Health for septic approval before the building permit⁴.
4. Submit the deed, plat or survey, septic letter or verification, and two copies of the plans or drawings to the Building Department⁸.
5. A homeowner may receive one permit every two years to build their own house, must supervise all phases and use licensed subcontractors; anyone paid more than $25,000 must be licensed¹. If you hire a general contractor, the licensed contractor must hold the building permit, which must be reissued if initially in your name¹.
6. Obtain the 911 address after the building permit, then have the septic system inspected before it is covered^3,4.
7. Ask the Building Department for the project-specific inspection schedule and certificate-of-occupancy requirements, which we could not confirm⁷.

Before buying unincorporated Jefferson County land, confirm the zoning district, permitted uses, setbacks and road frontage with the Zoning Department⁵. Land division within the county planning region may require an approved plat before recording; the subdivision definition excludes parcels of five acres or larger only when no new street or utility construction is required¹¹. The county administers subdivision plat approval and publishes a $125 fee dated 2007⁵. A new driveway connecting to a county road requires a free Highway Department permit before construction and may need drainage tile; state-highway access requires a TDOT permit^13,14. Flood-prone subdivision land cannot be platted for residential occupancy or uses that increase the hazard¹¹. Jefferson County’s effective property-tax rate is about 0.5%, the typical annual bill is near $990, and USDA farmland value is about $6,648 per acre⁶. We could not confirm private-well permit requirements; ask Environmental Health before relying on a well³.