Unincorporated Greene County, Tennessee requires a building permit before excavation, construction, moving or alteration of a building, issued by the county Building & Zoning Office1. County zoning applies only outside municipal limits, where towns may run their own2. Septic permit applications now go online to TDEC, not the county office3. Buildings on agricultural land are exempt from the county building permit4.
At a glance
- Building permit
- Required before covered work in unincorporated Greene County1
- Zoning
- Yes, for unincorporated territory; rules vary by district56
- Septic permits
- Required; submit the application and payment online to TDEC78
- Owner-builder
- Allowed for an owner's own home under Tennessee's conditions9
- RV or tiny-home living
- Campgrounds and temporary stays are limited; private long-term occupancy remains unconfirmed10
- Minimum lot size
- Varies by district and use; septic requirements may require more land11
- Agricultural buildings
- A county permit exemption exists for qualifying agricultural structures1213
Who to call
Building permits
Greene County Building & Zoning Office
Building permits, zoning questions and construction inspections in unincorporated Greene County
401 Takoma Ave, Suite 102 Greeneville, TN 37743
Septic permits
TDEC Division of Groundwater Protection — Greene County Septic System Construction
Septic applications, permits, site evaluations and inspections for Greene County
2305 Silver Dale Drive, Johnson City, TN 37601
Planning & zoning
Greene County Planning Department
Subdivision plat review, development questions and planning support
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Greene County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Greene County, Tennessee?
Yes. In unincorporated Greene County, a building permit must be issued before excavation, construction, moving or alteration of a building, including an accessory building1. Plans, intended use, zoning, subdivision rules and applicable flood-zone requirements must conform before approval1. Greene County administers adopted construction codes, though other jurisdictional requirements can apply to particular structures or locations14. Required county inspections include zoning, slab and final inspections, with others depending on the structure type15. Greene County issues the certificate of occupancy after final inspection and before occupancy16. The county zoning resolution says no building permit is required for a building or structure on land devoted to agricultural uses, though septic, subdivision, floodplain, state and municipal requirements may still apply413. Inside a municipality, building and zoning rules are the town's own, and the county's unincorporated-area rules do not apply2.
Who handles Greene County building permits and inspections?
The Greene County Building & Zoning Office is the first stop for a project in unincorporated Greene County, and it takes permit and inspection questions during its published weekday hours17. The application requires property-owner and applicant information, a telephone number, the property address, a building description, and a site plan or drawing; include a subdivision plat when applicable18. The Building Official may request more information, and the county requires an initial inspection and application approval before issuing the permit18. For a land division, contact the Greene County Planning Department, which reviews subdivision plats and answers development questions19. A division covered by the county subdivision rules needs an approved plat before it can be filed or recorded20.
Does Greene County, Tennessee have zoning?
Yes. Greene County zoning applies outside municipal corporate limits and requires development to conform to the applicable district21. The county map uses agricultural, residential, business and industrial districts, so the parcel's district is the starting point for any land-use answer6. Minimum lot area varies by district and use: in district A-2, a single-family structure needs 1 acre and other uses need 3 acres, and a lot without sanitary sewer must also satisfy TDEC requirements2211. Zoning stays a county matter in unincorporated Greene County, while septic permits go through TDEC3. Setbacks are not countywide defaults: they depend on the zoning district and use, and accessory buildings have separate requirements23. Building-height limits also depend on the applicable district and use24. Ask the Building & Zoning Office to identify the parcel's district and dimensional rules before positioning a house, driveway or accessory building17. Floodplain development is reviewed locally and may require approval before work begins25.
Who issues septic permits in Greene County, and how do they work?
A septic permit is required to install, repair or modify a septic system serving Greene County property26. Septic permits are separate from county building permits and zoning approval. Submit the application and payment through TDEC's online septic portal because the county Environmental Health office says it can no longer accept them727. A repair permit is required before work on a failing system, while changes to bedroom count, expected flow or the site plan can require a modification permit26. An alternative system requires a soils map prepared by a Tennessee-licensed soils consultant26. After installation, the installer must notify the state so the system can be inspected and approved before it is covered28. Only about 18% of Greene County soils rate as free of severe limitations for a conventional drain field, making early site evaluation especially useful29.
Can you live in an RV or tiny home in Greene County?
Greene County regulates new campgrounds, RV facilities and dispersed camping areas, and requires Planning Commission approval of a site plan10. Unless another permission applies, a transient camper or visitor stay is limited to 30 days; temporary accessory-dwelling use on private property is limited to 60 days and generally cannot occupy the principal use's front yard without gravel or paved parking10. Permanent RV placement is addressed within an approved campground and requires anchoring, inspection, safe egress, utilities, wastewater service and compliance with zoning and flood rules10. We could not confirm a general rule allowing long-term RV residence on an ordinary private parcel, or a tiny-home-specific occupancy or minimum-floor-area rule; ask the Building & Zoning Office about the proposed use17. A residential tiny home still faces permitting, zoning, setbacks and septic approval12326.
Building a home in Greene County: the steps, in order
- Ask the Greene County Building & Zoning Office to confirm the parcel's district, allowed use, setbacks, lot-size requirement and flood-zone status21231125.
- Submit the septic application through TDEC before dirt work or building construction fixes the house location730.
- Prepare the county application with the property and applicant details, building description, site plan or drawing, and any applicable subdivision plat18.
- Stake the property lines and proposed structure with at least 18-inch stakes for the zoning inspection15.
- Complete the required construction inspections and have the septic system inspected before covering it1528.
- Obtain the county certificate of occupancy after the building final and before moving in16.
- If the driveway enters state highway right-of-way, obtain the required TDOT permit31.
What should you check before buying land in Greene County?
Start with buildability, not the listing description. About 60% of Greene County land has a slope of 15% or less, while about 51% is wooded, so clearing, grading and driveway layout can change the usable homesite3233. Conventional septic suitability is a major filter because only about 18% of soils rate free of severe drain-field limitations29. Confirm zoning, district-specific setbacks, minimum lot area, floodplain status and whether an existing division was legally approved before closing11232520. A mobile-home park must have public water, while its sewer or septic arrangements must meet the applicable approval requirements34. Greene County's effective property-tax rate is about 0.4%, and the median annual property-tax bill is about $8033536. We could not confirm a Greene County-specific private-well permit rule, so ask the Building & Zoning Office and TDEC what applies1727.
Watch-outs
- The county Environmental Health page says it no longer accepts septic applications or payments, so use TDEC's online portal instead727.
- A septic installation must be inspected and approved before the system is covered28.
- Temporary camping and RV use have time, siting, sanitation and site-plan limits; confirm the exact category before occupying the land10.
- A qualifying farm structure can be permit-exempt, but floodplain, septic, subdivision and state requirements may still apply1213.
Sources
- Greene County Zoning Resolution, quoted and re-checked
- GREENE COUNTY, TENNESSEE ZONING RESOLUTION, quoted and re-checked
- ENVIRONMENTAL HEALTH, quoted and re-checked
- GREENE COUNTY, TENNESSEE ZONING RESOLUTION, quoted and re-checked
- Greene County Zoning Resolution, quoted and re-checked
- Greene County Zoning Resolution, quoted and re-checked
- Environmental Health, quoted and re-checked
- tn.gov, quoted and re-checked
- Can I build my own home without a license? (Tennessee statewide rule), quoted and re-checked
- Greene County August 25, 2025 Minutes, quoted and re-checked
- Greene County Zoning Resolution, quoted and re-checked
- Greene County Zoning Resolution, quoted and re-checked
- Exemption from County Zoning Regulation for Buildings on Land Used for Agriculture, Opinion No. 22-07 (Tennessee statewide rule), quoted and re-checked
- BUILDING SAFETY / CODES, quoted and re-checked
- BUILDING SAFETY / CODES, quoted and re-checked
- greenecountytngov.com, quoted and re-checked
- Greene County Building & Zoning Office (greenecountytngov.com)
- BOARD OF ZONING / BUILDING COMMISSIONER, quoted and re-checked
- Greene County Planning Department (greenecountytngov.com)
- Greene County Subdivision Regulations, quoted and re-checked
- Greene County, Tennessee Zoning Resolution, quoted and re-checked
- GREENE COUNTY, TENNESSEE ZONING RESOLUTION, quoted and re-checked
- GREENE COUNTY ZONING RESOLUTION, quoted and re-checked
- Greene County Zoning Resolution, quoted and re-checked
- Statewide Floodplain Administrator Directory (Tennessee statewide rule), quoted and re-checked
- Online Application for Septic Related Services, quoted and re-checked
- TDEC Division of Groundwater Protection — Greene County Septic System Construction (greenecountytngov.com)
- Subsurface Sewage Disposal System (SSDS) Frequently Asked Questions (Tennessee statewide rule), quoted and re-checked
- 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
- Septic System Construction Permit (Tennessee statewide rule), quoted and re-checked
- Highway Entrance Permits (Tennessee statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Greene County, Tennessee Zoning Resolution, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
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.