Unincorporated Hardin County, Kentucky requires building and electrical permits before covered building, moving or alteration work begins, and a zoning permit may also be required1. All land in unincorporated Hardin County is zoned2. The Lincoln Trail District Health Department handles septic site evaluations, permits and inspections3.
At a glance
- Building permit
- Required before covered building, moving or alteration work begins; a zoning permit may also be required1
- Zoning
- All land in unincorporated Hardin County is zoned2
- Septic
- Start with a Health Department site evaluation; installation requires a permit and inspection45
- RV living
- State law only protects sleeping in a parked vehicle under 12 hours; not permission to live on land long-term6
- Occupancy
- A certificate of occupancy is required before a regulated structure or premises is used7
- Driveway access (state road)
- Written application to the state highway district engineer required before building an approach8
- Floodplain
- Development in an identified floodplain requires both state and local permits910
- Ag land division
- Dividing 5+ contiguous acres for agricultural use, without a new street, isn't treated as a subdivision11
Who to call
Planning & zoning
Hardin County Planning & Development Commission
Building and electrical permits, zoning administration, and land-use/zoning maps for Hardin County
150 N. Provident Way, Suite 225, Elizabethtown, KY 42701
Zoning
Hardin County Planning & Development Commission - Zoning
Zoning map, zoning districts and the county's Development Guidance System Zoning Ordinance
Septic permits
Lincoln Trail District Health Department - Environmental
On-site sewage (septic) site evaluations, permitting and inspection for Hardin County
108 New Glendale Road, Elizabethtown, KY 42702
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Hardin County, Kentucky?
Yes. In unincorporated Hardin County, individuals must obtain building and electrical permits before beginning building, moving or alteration activities governed by the zoning ordinance, and the project may also require a zoning permit1. The county application requires an aerial photo showing the proposed structure and its distances from property lines1. Kentucky otherwise makes permits optional for a single-family dwelling unless a local ordinance requires them, and Hardin County has adopted that local requirement121. Submit building and electrical permit applications in person to the Hardin County Planning & Development Commission; emailed requests are not accepted13. Before using a regulated structure or premises, obtain a certificate of occupancy showing compliance with the Kentucky Building Code and county zoning ordinance, with electrical, plumbing and the applicable septic or sewer service approved and available7.
Who is the Hardin County Planning & Development Commission, and how do you reach them?
The Hardin County Planning & Development Commission is the first stop for building, electrical and zoning permits in unincorporated Hardin County12. Reach the commission at (270) 769-5479 or visit 150 N. Provident Way, Suite 225, Elizabethtown, KY 4270113. The office is open Monday through Friday, 8:00 am to 4:30 pm13. Building and electrical permit applications must be submitted in person, and emailed permit requests are not accepted13. Bring an aerial photo that identifies the proposed structure and shows its distance from property lines1. Ask the commission whether the proposed use is allowed outright or needs a conditional-use or variance decision, whether a separate zoning permit is required, and which inspections apply; the permit requirement is confirmed, but we could not confirm the operative county building-inspection schedule21.
Does Hardin County have zoning?
Yes. Every parcel in unincorporated Hardin County is assigned a zone, and covered construction or land-use changes require a zoning permit2. The county describes 14 land-use zones under the Development Guidance System Zoning Ordinance14. A use that is not permitted outright may require the applicable board to approve a conditional use or variance2. Confirm the parcel's current designation with the Planning & Development Commission before buying or designing, because the official zoning map kept in the planning office is the final authority14. We could not confirm a current numeric rule for setbacks, minimum lot size, minimum dwelling size, building height or lot coverage; ask the commission for the standards tied to the parcel's exact zone. The same caution applies to a manufactured home, accessory dwelling or tiny home: county zoning covers unincorporated land, but the permitted-use details for those housing types were not confirmed2.
How do septic permits work in Hardin County?
The Lincoln Trail District Health Department handles Hardin County septic site evaluations, installation permits and inspections3. Start by submitting a site-evaluation request online or at the local Environmental office with the site address, boundary information, survey plat, existing features, proposed structure and system locations, and information about the proposed use15. The site-evaluation fee is $300 and is due with the application16. If the site is rated suitable or provisionally suitable, a certified installer may apply for the installation permit after the required paperwork and fees are submitted4. After installation, the installer must request a Health Department inspection before covering any work5. Properly designed, constructed and maintained septic can serve a home without city sewer, but the same evaluation, permit and inspection rules apply17. Only about 32.1% of county soils are rated without severe limitations for a conventional drain field, so order the evaluation early18.
Can you live in an RV or tiny home on your land in Hardin County?
We could not confirm that unincorporated Hardin County allows long-term RV occupancy on private land, so ask the Planning & Development Commission about the parcel's zoning before relying on an RV as temporary or permanent housing. Kentucky's narrow protection for sleeping in a lawfully parked vehicle on a public road, street or parking lot lasts less than 12 hours and does not authorize living in an RV on private land6. We also could not confirm county occupancy rules or a minimum dwelling size specifically for tiny homes. A site-built tiny home is not a way around the permit system: covered building activity requires building and electrical permits before work begins, and a zoning permit may also be required1. Before occupying a regulated tiny-home structure, the county requires a certificate of occupancy showing code and zoning compliance and approved utilities, including septic or sewer where applicable7.
Building a home in Hardin County: the steps, in order
- Confirm the parcel's zoning and proposed use with the Planning & Development Commission; a conditional use or variance may require a board decision2.
- If the property needs septic, submit the Health Department site-evaluation request and $300 fee before fixing the house location1516.
- Prepare the permit application with an aerial photo showing the structure and its distance from property lines, then submit building and electrical permits in person before work begins113.
- Have a certified installer apply for the septic installation permit after the site is rated suitable or provisionally suitable4.
- If the driveway meets a state highway, apply in writing to the Kentucky Department of Highways district engineer before building the approach8.
- Have the Health Department inspect the installed septic system before any work is covered5.
- Obtain the county certificate of occupancy after code, zoning, electrical, plumbing and applicable septic or sewer approvals are complete7.
What to check before you buy land in Hardin County
Start with zoning: all unincorporated land is zoned, and the official map in the planning office controls214. Check septic feasibility before choosing a building site, because only about 32.1% of Hardin County soils are rated without severe limits for a conventional drain field18. Ask about flood status as well: development in a special flood-hazard area of unincorporated Hardin County needs a local development permit, and Kentucky also requires a state permit for development in an identified floodplain910. Confirm legal road access; a new farm or single-family driveway onto a state highway requires a written application to the state district engineer8. Finally, budget beyond the purchase price: the effective property-tax rate is about 0.7%, the median annual bill is about $1,451, and the septic program charges $300 for a site evaluation and $100 for an existing-system inspection192016.
Watch-outs
- Hardin County's Planning & Development Commission accepts building and electrical permit applications in person, not by email13.
- Do not occupy a regulated structure before the county issues its certificate of occupancy; electrical, plumbing and applicable septic or sewer service must be approved and available7.
- The septic installer must request a Health Department inspection before covering any part of a new system5.
Sources
- Development Guidance System, quoted and re-checked
- Development Guidance System, quoted and re-checked
- On-Site Sewage, quoted and re-checked
- On-Site Sewage, quoted and re-checked
- On-Site Sewage, quoted and re-checked
- KRS 511.110 — Unlawful camping (Kentucky statewide rule), quoted and re-checked
- Development Guidance System, quoted and re-checked
- 603 KAR 1:020 Driveway approaches, entrances; construction and maintenance (Kentucky statewide rule), quoted and re-checked
- Amendment to Ordinance No. 254, Series 2007 Related to Flood Damage Prevention, quoted and re-checked
- Find Your Flood Zone (Kentucky statewide rule), quoted and re-checked
- KRS 100.111 — Definitions for chapter (Kentucky statewide rule), quoted and re-checked
- 815 KAR 7:125, Kentucky Residential Code (Kentucky statewide rule), quoted and re-checked
- Hardin County Planning & Development Commission (hcpdc.com)
- Hardin County Planning & Development Commission - Zoning (hcpdc.com)
- On-Site Sewage, quoted and re-checked
- On-Site Sewage, quoted and re-checked
- On-Site Sewage, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 29, 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.