In Green County, Kentucky, a single-family home does not need a building permit, building inspection or certificate of occupancy under the state rule unless a local ordinance requires them123. Green County has no county zoning on unincorporated land4. Septic permits for every address in the county, inside Greensburg or not, come from the Green County Health Center56.
At a glance
- Building permit
- State rules do not require one for a single-family home unless a local ordinance does; Green County is recorded as not issuing a county residential permit17
- Building code
- The Kentucky Residential Code still applies to single-family homes, two-family homes and townhouses8
- Zoning
- No planning, zoning ordinance or county setback requirement on unincorporated land49
- Septic permits
- Required through the Green County Health Center before installation or alteration56
- RV / tiny home living
- Long-term occupancy rules could not be confirmed; septic and state construction rules may still apply410
- Owner-builder
- Conditional homeowner permits are available for personally performed plumbing and HVAC work1112
- Farm buildings
- Qualifying farm dwellings and farm structures outside a municipality are excluded from the state building definition13
- Wells
- Well construction, alteration, repair and abandonment must be done by a state-certified driller or assistant14
Who to call
Septic permits
Green County Health Center (Lake Cumberland District Health Department)
Onsite sewage (septic) permit applications, site evaluations and inspections for Green County, as the local office of the Lake Cumberland District Health Department
220 Industrial Park Road, Greensburg, KY 42743
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 Green 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 Green County, Kentucky?
Kentucky does not require a building permit, building inspection or certificate of occupancy for a single-family dwelling unless a local ordinance requires them123. Green County is recorded as not issuing a county residential building permit, but the county department listing alone does not prove that no local ordinance exists, so confirm the parcel's jurisdiction before relying on the exception715. The exception is limited to single-family dwellings; it does not cover two-family dwellings or townhouses1. The Kentucky Residential Code remains the construction standard for single-family homes, two-family homes and townhouses even when the single-family permit exception applies8. Separate plumbing, HVAC, septic, electrical or floodplain approvals are not erased by the building-permit exception25.
Who issues building permits in Green County, and how do you reach them?
Green County's directory does not list a county building inspection or building permit department, and the county is recorded as not issuing a residential building permit7. For an ordinary single-family project, first confirm with the county that the parcel is unincorporated and that no local building ordinance applies, because Kentucky's state exception is expressly conditional on local law15. The Green County Health Center handles onsite sewage administration as the local Lake Cumberland District Health Department office and handles septic permits at 220 Industrial Park Road in Greensburg, phone (270) 932-4341166. Plumbing work requires a state plumbing construction permit, while qualifying homeowners may obtain a permit for work in their own residence17. Land inside the City of Greensburg follows the city's separate zoning materials and permit process, but septic permits there still come from the Green County Health Center1816.
Does Green County have zoning?
An official state order says Green County has no planning and zoning and has enacted no zoning ordinances or setback requirements4. On unincorporated land, Green County therefore sets no zoning-based minimum dwelling size, minimum lot size, lot-coverage limit or building-height limit4192021. That does not remove septic, floodplain, building-code, utility, deed-restriction or other project-specific requirements422. The City of Greensburg has separate zoning materials, so confirm municipal boundaries before applying the unincorporated-county answer18. Qualifying agricultural land receives broad protection from zoning regulation under Kentucky law, but setbacks protecting roads, floodplain controls, dwellings and certain horse activities remain exceptions23.
How do septic permits work in Green County, and what do they cost?
A Green County onsite sewage system needs a permit from the local health department before construction, installation or alteration begins5. The Lake Cumberland District Health Department charges a $227 site-evaluation fee, and you dig two to four 42-inch-deep test holes for the evaluation24. A certified septic installer then applies for the septic permit, with a $271 fee and a detailed drawing, and the Health Department inspects the finished installation before approving it2425. For lots created or platted after January 1, 2007, a home with a private sewage system needs at least 22,000 square feet26. Only 36.3% of Green County soils are rated without severe limits for a conventional drain field, so make the site evaluation an early purchase contingency27. A qualifying farmstead on at least 10 acres outside a municipality may receive a plumbing farmstead exemption, but that finding does not create a blanket exemption from septic or other requirements28.
Can you live in an RV or tiny home on your land in Green County?
Green County's lack of county zoning removes zoning-based minimum dwelling size and setback controls on unincorporated land, but it does not by itself establish a right to occupy an RV or tiny home full time4. We could not confirm a Green County rule that expressly permits or prohibits long-term RV occupancy or tiny-home occupancy; ask the county about the parcel and the Green County Health Center about wastewater before moving in6. Where public sewer is unavailable, a building's house drain must connect to an approved private sewage disposal system29. A tiny home built as a dwelling remains subject to the applicable Kentucky residential construction standard even when the single-family permit exception applies81. Manufactured homes are governed separately under Kentucky law, and the available sources do not settle where one may be occupied in Green County30.
Building a home in Green County: the steps, in order
- Confirm that the parcel is outside Greensburg, because city land follows a separate zoning and permit process18.
- Ask Green County whether a local single-family building ordinance applies; Kentucky otherwise exempts a single-family dwelling from the building permit, inspection and certificate of occupancy requirements123.
- Arrange the septic site evaluation ($227) and the installer's septic permit ($271) with the Green County Health Center before system work begins246.
- Obtain the state plumbing permit and any owner-builder plumbing or HVAC permit before personally performing that work171112.
- For development in a stream or identified floodplain, obtain the applicable state permit and ask about the additional local floodplain permit3132.
- For a new farm or single-family driveway onto a state-road right-of-way, apply in writing to the Kentucky Department of Highways District Engineer33.
What should you check before buying land in Green County?
Start with wastewater suitability: only 36.3% of Green County soils are rated without severe limits for a conventional drain field27. Check mapped streams and floodplains because development there can require both state and local floodplain permits, including an individual state review when a project may change the Base Flood Elevation3132. Verify legal access and apply to the state District Engineer before creating a new farm or single-family driveway on a state-road right-of-way33. If you plan to divide the tract, ask the county clerk or fiscal court whether Green County has adopted subdivision regulations; Kentucky provides an approval framework, but its Green County administration could not be confirmed34. A division for qualifying agricultural use that does not create a new street is excluded from the statutory definition of subdivision35. Typical effective property tax is about 0.6%, with a median annual bill near $7523637.
Watch-outs
- The single-family building-permit exception does not cover two-family dwellings or townhouses and does not cancel separate trade, septic or floodplain requirements12.
- Owner-builders may personally perform qualifying plumbing or HVAC work only after applying, filing the required affidavit and meeting the applicable conditions1112.
- A farm building outside a municipality is excluded from the state building definition only when it is incident to farm operations and is not used for retail, regular employment at or above the statutory threshold, or timber processing13.
Sources
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- psc.ky.gov, quoted and re-checked
- 902 KAR 10:085 Kentucky on-site sewage disposal systems, quoted and re-checked
- Green County Health Center (Lake Cumberland District Health Department) (lcdhd.org)
- Green County, KY - Departments & Agencies (2026 county census)
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- Kentucky Public Service Commission Order, Case No. 2025-00151, quoted and re-checked
- 815 KAR 20:130. House sewers and storm water piping; methods of installation (Kentucky statewide rule), quoted and re-checked
- Kentucky Department of Housing, Buildings and Construction plumbing frequently asked questions, quoted and re-checked
- 815 KAR 8:070 Installation permits, quoted and re-checked
- apps.legislature.ky.gov, quoted and re-checked
- 401 KAR 6:320. Certification of water well drillers and water well driller assistants (Kentucky statewide rule), quoted and re-checked
- 815 KAR 7:125 Kentucky Residential Code, quoted and re-checked
- Departments & Agencies - Green County, quoted and re-checked
- Division of Plumbing Fee Change and Permit Information (Kentucky statewide rule), quoted and re-checked
- City of Greensburg - Taxes, Licenses, Fees, and Permits, quoted and re-checked
- psc.ky.gov, quoted and re-checked
- psc.ky.gov, quoted and re-checked
- psc.ky.gov, quoted and re-checked
- Understand Your Flood Hazards - Kentucky Energy and Environment Cabinet, quoted and re-checked
- KRS 100.111 Definitions for chapter, quoted and re-checked
- Green County Health Department, quoted and re-checked
- 902 KAR 10:085 Kentucky on-site sewage disposal systems, quoted and re-checked
- Green County Health Department, 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
- Department of Housing, Buildings and Construction — Frequently Asked Questions (Plumbing), quoted and re-checked
- 815 KAR 20:130. House sewers and storm water piping; methods of installation (Kentucky statewide rule), quoted and re-checked
- 815 KAR 7:120 Kentucky Building Code (Kentucky statewide rule), quoted and re-checked
- Understand Your Flood Hazards - Kentucky Energy and Environment Cabinet, quoted and re-checked
- Find Your Flood Zone (Kentucky statewide rule), quoted and re-checked
- 603 KAR 1:020. Driveway approaches, entrances; construction and maintenance., quoted and re-checked
- KRS 100.111 Definitions for chapter, quoted and re-checked
- apps.legislature.ky.gov, 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.