Building permits, zoning and land rules in Nelson County, Kentucky

Yes. Nelson County requires a building permit for construction or alteration of detached one- and two-family homes, qualifying apartments and townhouses, and their accessory structures¹. Nelson County has adopted the Kentucky Building Code and Kentucky Residential Code, including periodic amendments and updates¹.

New one- and two-family construction requires at least 3 building inspections: footer, framing and final¹. Residential new construction and additions are listed at $225 with the minimum inspections¹. A certificate of occupancy is required for the residential structures covered by the county ordinance¹. Zoning compliance is a separate approval, and the zoning application requires a septic evaluation or applicable approval when the site lacks sewer service or uses an existing septic system^3,10.

Nelson County Code Enforcement handles building-permit applications and publishes the building permit and inspection fee schedule^2,11. Call (502) 348-1862 or email codesclerk@nelsoncountyky.gov for the building-permit program¹¹. Inside Bardstown, the building and zoning-compliance application also directs applicable documents and fees to Nelson County Code Enforcement¹². Lincoln Trail District Health Department remains the onsite sewage permitting authority throughout Nelson County, including city addresses⁴.

A building application requires construction documents, a scaled plot plan, an address request, zoning compliance approval, applicable entrance approval and fees; the zoning package also calls for the deed or survey and applicable septic documentation³. State roads require a state entrance permit, county roads require a county encroachment permit, and city streets require the applicable city approval². A private driveway does not itself require zoning compliance approval, but road-access approval can still be required¹².

Yes. Unincorporated Nelson County is zoned, and the Joint City-County Planning Commission maintains its official zoning map^3,6. Bardstown adopts its own zoning map; the joint regulations also cover Bloomfield, Fairfield and New Haven under separate legislative jurisdictions^3,13. Septic permits remain with Lincoln Trail District Health Department across county and city jurisdictions⁴.

Lot area, setbacks, impervious coverage and height depend on the district and subdivision option; the 10-acre conservancy-lot minimum is not a countywide minimum^3,6. Accessory structures generally have 5-foot rear and side setbacks, or 6 feet along a platted alley, subject to exceptions³. Subdivision plats require Planning Commission review¹⁴. Qualifying agricultural structures still need zoning compliance approval, a plot plan and a signed agricultural-use affidavit; the zoning-permit fee is waived, but street setbacks and floodplain controls remain applicable⁶.

Lincoln Trail District Health Department handles onsite sewage permits and inspections throughout Nelson County, including incorporated cities⁴. Nelson County Health Department Environmental Services is the local contact for the septic site evaluation, installation permit and inspection¹⁰.

Arrange the site evaluation before fixing the house location; the septic permit application then requires a detailed drawing and fees¹⁵. After a suitable or provisionally suitable evaluation, a certified installer may apply for the installation permit; a homeowner installing the system personally must use the health department's homeowner-permit process^4,5. The septic installation permit expires after 1 year unless extended, and the installed system must pass health department inspection^5,15. Only 10.9% of mapped Nelson County soils are rated without severe limitations for a conventional septic drain field, so make satisfactory septic evaluation a purchase contingency¹⁶. Approved onsite septic can serve a home where sewer is unavailable; unapproved off-grid waste disposal is not an alternative^4,15.

Nelson County prohibits using travel trailers or other recreational vehicles as dwelling units or permanently connecting them to utilities⁶. We could not confirm temporary camping rules for private land; ask the Joint City-County Planning Commission before an overnight or seasonal stay¹⁷.

In Nelson County's A-1 Agriculture District, a qualifying single-wide mobile home no wider than 18 feet may be a principal use on at least 1 acre⁶. Manufactured homes wider than 18 feet must follow manufacturer installation directions and have a solid concrete-block or concrete perimeter foundation; district and permit requirements also apply⁶.

A detached accessory dwelling must be permanent, behind the principal home, meet accessory setbacks, and stay within 1,000 square feet of living area and 1,500 square feet total gross floor area³. A-1 requires at least 2 acres and approved wastewater service for both dwellings; R-1A requires a lot twice the district minimum and approved onsite sewage disposal for both³. Site-built tiny homes remain subject to applicable building permits, inspections and occupancy approval; we could not confirm a general minimum dwelling size, so ask Planning and Code Enforcement to classify the design^1,11,17.

1. Ask Planning to confirm the parcel's jurisdiction, district, allowed use and dimensional standards^3,17.
2. Obtain the applicable septic evaluation or permit through Nelson County Health Department Environmental Services^2,10.
3. Obtain the state entrance permit, county encroachment permit or city street approval from the road authority².
4. Submit the zoning-compliance package with the deed or survey, plot plan and applicable septic, access and development approvals³.
5. Submit the building application, construction documents, plot plan, address request, zoning approval and fees to Code Enforcement; the zoning permit expires if a building permit is not obtained within 60 consecutive days³.
6. Complete required building inspections and obtain the certificate of occupancy for covered residential construction¹.

Owner-performed plumbing and HVAC work require homeowner permits before work begins, affidavits and code compliance; HVAC also requires sizing and duct/piping plans^8,18. These authorizations do not waive county building or zoning approval⁸. An applicant exempt from workers' compensation coverage must submit the applicable exemption affidavit to the building official¹⁹.

Confirm the parcel's zoning map, district, access approval and subdivision history before treating a listing as buildable^2,6,14. Make septic approval a purchase contingency because only 10.9% of mapped soils avoid severe conventional-drain-field limitations¹⁶. Kentucky does not require an owner-applied permit or fee for an ordinary private well, but a Kentucky-certified water-well driller must perform the work²⁰.

Ask Planning about local floodplain review; state approval is required for work near a river or stream or in a floodway that may affect water flow²¹. New construction and substantial improvements in regulated floodplains also face elevation or floodproofing requirements²¹. Electrical or natural-gas connections for new construction or changed use must be made by the utility unless it gives specific permission otherwise⁶. Short-term rentals in applicable unincorporated Nelson County districts require conditional-use approval and compliance with occupancy rules⁶. The effective property-tax rate is about 0.8%, and the median annual bill is $1,782¹⁶.