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

At a glance

Building permit

Required for construction and regulated trade work⁶

Zoning

County Inner and Outer Region rules; municipal rules can differ²³

Septic permit

Required; county health approval must precede the building permit⁵

Owner-builder

Conditional exemption for an owner building their own residence⁷

Small structures

Detached accessory structures under 200 sq ft (sheds, playhouses) don't need a permit⁸

Occupancy

Final inspections and approval are required before a certificate of occupancy⁹

RV living

Not permitted as permanent housing in unincorporated areas¹⁰

Who to call

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

Do you need a building permit in Madison County, Tennessee?

Yes, in the areas the county administers. Madison County requires the owner or authorized agent to obtain permits before constructing, enlarging, altering, repairing, moving or demolishing a structure, changing its occupancy, or doing regulated electrical, gas, mechanical or plumbing work⁶. Madison County administers adopted building, residential, mechanical, plumbing, fuel-gas, existing-building and fire codes; the county's listed energy-code amendment took effect in 2024¹¹. Limited residential work is exempt, including a one-story detached accessory structure no larger than 200 square feet, a fence no taller than 7 feet, and a qualifying unattached deck no larger than 200 square feet and no more than 30 inches above grade⁸. Treat those exceptions narrowly: an exempt shed is not permission to use it as a dwelling, and other permit or zoning requirements may still apply⁸².

Who is the Madison County Building Department, and how do you reach them?

The Madison County Building Department is at 100 E. Main St. Suite 100, Jackson, TN 38301, and its phone number is (731) 423-6014¹². Madison County accepts permit applications through its Building Department and Citizen Portal: create the application, complete the required fields, upload plans and supporting documents, and submit it only when the package is complete¹³. Septic approval or a utility-connection letter may be required when applicable, and construction cannot begin until the permit has been approved and issued¹³. Madison County publishes project-valuation-based permit fees and adds a non-refundable $25 processing fee to every plan submittal; card payments carry a 3% convenience fee or $2, whichever is greater¹⁴. For zoning and land-use questions, call the Building Department or planning staff at 731-425-8286¹⁵.

Does Madison County have zoning?

Yes. Madison County publishes separate Inner Region and Outer Region zoning materials plus a property-search map¹⁶. The county zoning page also links separate material for the City of Three Way, so do not assume one county rule answers every parcel inside an incorporated municipality³. In Outer Region R districts, a single-family lot with sanitary sewer must contain at least 9,000 square feet, while each dwelling unit without sanitary sewer needs at least 20,000 square feet or the Madison County Health Department standard, whichever is larger¹⁷. Those R districts require a front setback of 30 feet plus half the designated right-of-way width, side setbacks of 10 feet each and a rear setback of 20 feet¹⁸. All buildings, including accessory buildings, may cover no more than 30% of the lot¹⁹. Ask planning staff to confirm the parcel's region and district before applying these standards¹⁵. The available facts do not confirm a minimum dwelling size or building-height limit.

How do septic permits work in Madison County?

A septic permit is required to construct, modify or repair a septic system in Madison County, and the county requires a Health Department letter before issuing the building permit⁵. Tennessee treats Madison as a contract county, so permit packages go to the county rather than a state field office²⁰. The standard septic permit costs $500, made up of a $400 permit fee and a $100 inspection fee, all due in advance and non-refundable; the county may also require a high-intensity soil map before it proceeds²¹. Septic permits stay with the county Environmental Health Section whether the parcel sits inside a city or not, where city sewer is not available⁴. Madison County Health's Environmental Health Section permits new conventional systems, oversees construction and repairs, and grants final approval where city sewer is unavailable²². Obtain the septic permit before starting dirt work or construction of the building pad; an alternative system requires an extra-high-intensity soils map prepared by a Tennessee-licensed soils consultant²³. Only 18.7% of Madison County soils are rated without severe limitations for a conventional drain field, so make the site evaluation an early purchase contingency rather than assuming a standard system will fit²⁴. Call Environmental Health at 731-423-3020 before finalizing the house site or building plans²².

Can you live in an RV or tiny home on your land in Madison County?

Full-time living in an RV is not allowed in unincorporated Madison County: the county states that RVs, campers and temporary structures are not permitted as permanent housing¹⁰. That rule addresses permanent housing, not short-term recreational stays, and the county directs questions about RV or mobile-home parks to planning and zoning staff¹⁰¹⁵. We could not confirm a countywide temporary-camping limit or a tiny-home occupancy rule, and the answer can depend on whether the parcel falls under Inner Region, Outer Region or municipal zoning³¹⁶. Madison County's permit exemption for a small detached accessory structure does not make that structure an approved residence⁸. A tiny home used as a dwelling should be treated as a building-and-zoning question until the Building Department confirms the permit path and planning staff confirms the use for the parcel¹¹⁵.

Building a home in Madison County: the steps, in order

1. Identify whether county Inner Region, county Outer Region or municipal zoning controls the parcel, then confirm the proposed use and district with planning staff³¹⁶.
2. If the parcel is in an Outer Region R district, lay out the project against the applicable lot-size, setback and 30% building-coverage standards before commissioning plans¹⁷¹⁸¹⁹.
3. If sewer is unavailable, obtain the septic approval and county Health Department letter required before the building permit can be issued⁵²².
4. Create the county permit application, complete every required field, upload the plans and supporting documents, and submit the completed package through the county process¹³.
5. Pay the valuation-based permit charge and applicable plan-submittal and payment fees, then wait until the permit is approved and issued before beginning construction¹⁴¹³.
6. If acting as owner-builder, document that the home is for your own residential use and not for sale, lease or rent; only one homeowner permit is allowed every two years, and hired trades remain subject to licensing conditions, and a contractor paid $25,000 or more must be licensed⁷²⁵.
7. Schedule the required inspections in sequence, then complete all final approvals before expecting the certificate of occupancy²⁶⁹.

What to check before you buy land in Madison County

Confirm the governing zoning region and district before relying on an advertised use, because Madison County publishes separate Inner and Outer Region materials and incorporated-area rules may differ³¹⁶. For an Outer Region R parcel, verify that the lot and planned building envelope satisfy the district's minimum lot size, setbacks and 30% maximum building coverage¹⁷¹⁸¹⁹. Make septic feasibility a contract contingency: only 18.7% of county soils are rated without severe limitations for a conventional drain field²⁴. Check road ownership too; a county-road driveway culvert must be sized and approved by the Madison County Highway Department, while work on a state-highway right-of-way needs a TDOT permit²⁷²⁸. We could not confirm Madison County's private-well or subdivision requirements, and floodplain review is locally managed, so ask the Building Department which approvals apply before closing¹²²⁹.

Watch-outs

• Do not begin construction when an application is merely submitted; Madison County requires the permit to be approved and issued first¹³.
• A Madison County Health Department letter is required before the county building permit can be issued, so settle septic feasibility early⁵.
• A certificate of occupancy comes only after all required final inspections are approved; temporary certificates are limited to 30 days, two per project, and cost $200 per request⁹.
• Full-time RV living is not permitted in unincorporated Madison County, though we could not confirm a temporary-camping limit or a tiny-home rule; ask planning staff about the parcel's jurisdiction, district and proposed use¹⁰¹⁵.

Sources

1. Permits and Inspections, quoted and re-checked
2. Zoning & Land Use Information, quoted and re-checked
3. Zoning & Land Use Information, quoted and re-checked
4. Septic Systems, quoted and re-checked
5. Subsurface Sewage Disposal System Frequently Asked Questions, quoted and re-checked
6. Permits and Inspections, quoted and re-checked
7. Homeowner Permits, quoted and re-checked
8. Madison County Building Department, Permit Exemptions (madisoncountytn.gov)
9. Madison County Construction Guide 2025, quoted and re-checked
10. Code Enforcement Frequently Asked Questions, quoted and re-checked
11. Permits and Inspections, quoted and re-checked
12. Madison County Building Department (madisoncountytn.gov)
13. Citizen Portal, quoted and re-checked
14. Permit and Plan Review Fees, quoted and re-checked
15. Madison County Zoning & Land Use Information (madisoncountytn.gov)
16. Zoning & Land Use Information, quoted and re-checked
17. Madison County Zoning Resolution Outer Region, current 6-16-2025, quoted and re-checked
18. Madison County Zoning Resolution Outer Region, current 6-16-2025, quoted and re-checked
19. Madison County Zoning Resolution Outer Region, current 6-16-2025, quoted and re-checked
20. Third-Party Permits & Final Inspections, quoted and re-checked
21. Septic Systems, quoted and re-checked
22. Madison County Health, Environmental Health Section (madisoncountytn.gov)
23. Septic System Construction Permit (Tennessee statewide rule), quoted and re-checked
24. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
25. Homeowner Permits, quoted and re-checked
26. Permits and Inspections | Madison County, TN, quoted and re-checked
27. Madison County Highway Department, Driveway Connections (madisoncountytn.gov)
28. Highway Entrance Permits (Tennessee statewide rule), quoted and re-checked
29. Statewide Floodplain Administrator Directory (Tennessee statewide rule), quoted and re-checked

Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.