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

A single-family home in unincorporated Robertson County does not need a building permit, building inspection or certificate of occupancy unless a local ordinance requires them^2,6. Robertson County has no local building inspector, but the absence of county inspections does not waive construction standards³. The adopted codes are the 2018 Kentucky Building Code and 2018 Kentucky Residential Code, based on the 2015 international building and residential codes¹². The Kentucky Residential Code governs single-family homes, two-family homes and townhouses; only single-family homes receive the permit exception^2,13. Other construction requires state review and approval before work starts, inspections and a certificate of occupancy before use^3,6.

The Kentucky Department of Housing, Buildings and Construction handles commercial building permits in Robertson County, which has no local building inspector¹. Construction other than single-family dwellings must be submitted to the state Division of Building Code Enforcement for review and approval before work starts³. For single-family homes, mechanical-system inspections by Kentucky HVAC and electrical inspections by the local county electrical inspector remain applicable³. Ask the County Judge Executive’s office for the electrical-inspection contact for unincorporated land^1,7. A homeowner may obtain a plumbing permit for a home the owner occupies or is building for personal residential use, but must apply before work, file an affidavit, personally perform all work and follow the state plumbing code⁹. Only 1 new-home homeowner plumbing permit may be issued to an individual in a five-year period⁹. Residential one- and two-family plumbing permits cost $50 plus $14 per opening; a domestic-water-heater-only permit costs $50¹⁴.

We could not confirm whether unincorporated Robertson County has a current zoning ordinance or map; the county departments page lists no planning or zoning office⁴. Ask the County Judge Executive’s office about the exact parcel and intended use before assuming there are no land-use restrictions⁷. Kentucky counties may enact zoning after completing the required comprehensive-planning process¹⁵. We also could not confirm Robertson County rules for building setbacks, minimum lot or dwelling size, lot coverage, building height, manufactured homes or accessory dwellings; ask the County Judge Executive’s office which requirements apply⁷.

A permit is required before constructing, installing or altering any part of an onsite sewage disposal system in Robertson County¹⁶. The Robertson County Health Department's environmental office, part of Buffalo Trace District Health Department, handles site evaluations and permits⁵. If public sewer is unavailable, the building drain must connect to an approved private sewage disposal system¹⁷. The installer must arrange a certified inspection before backfilling the septic system¹⁶. Only 1.5% of county soils are rated free of severe limits for a conventional drain field, so make the site evaluation an early purchase contingency and be prepared for an alternative design¹¹. State septic rules set minimum setbacks for a system: 10 feet from a building foundation, 5 feet from a property line, 25 feet from a stream and 50 feet from a well for most system parts, with distances depending on the system component; these are septic setbacks, not building setbacks¹⁶. Each subdivision lot is evaluated individually, and a proposed cluster system requires permanent ownership, operation and maintenance documents¹⁶. Approved composting or other nonwater-carriage toilets may reduce residential design flow, but they do not remove the remaining onsite-system requirements¹⁶.

Kentucky’s residential code allows a tiny house used as a single dwelling on a permanent foundation when it complies with the tiny-house provisions¹⁰. The code defines a tiny house as no more than 400 square feet excluding lofts, but that construction rule does not establish local land-use approval, septic approval or utility service¹⁰. We could not confirm a Robertson County rule allowing or prohibiting a tiny home, manufactured home or long-term RV residence on a private parcel; ask the County Judge Executive’s office about the proposed use⁷. Kentucky’s rules for publicly available RV communities and event parking do not authorize long-term residence in a single RV on private land^18,19. Ask the Robertson County Health Department about wastewater before placing a dwelling or RV⁴.

1. Ask the County Judge Executive's office whether parcel-specific zoning, setbacks or other local rules apply⁷.
2. Design the home to the mandatory Kentucky Residential Code even where no single-family building permit or county building inspection is required; a local ordinance can change the permit requirement^2,3.
3. Get the septic site evaluation and construction permit from the Robertson County Health Department before system work starts; if public sewer is unavailable, connect the building drain to the approved private system^4,16,17.
4. Obtain the plumbing permit before work begins; an eligible homeowner doing all work personally must also file the required affidavit⁹.
5. Arrange the mechanical and electrical inspections that remain applicable despite the lack of county building inspections¹.
6. Obtain a Kentucky Transportation Cabinet entrance permit if the driveway connects to a state highway^4,20.
7. If using a well, hire a Kentucky-certified driller; the property owner owes no separate well application or fee⁸.

Make septic feasibility a purchase contingency: only 1.5% of Robertson County soils are rated free of severe limits for a conventional drain field¹¹. Robertson County is 63.1% wooded, while 26.4% of its land has a slope of 15% or less, so inspect the actual building area, clearing needs and access rather than relying on total acreage¹¹. Confirm zoning, RV or tiny-home occupancy, setbacks and access with the County Judge Executive's office before closing because those local rules remain unconfirmed⁷. A driveway onto a state highway requires a Kentucky Transportation Cabinet permit²⁰. The effective property-tax rate is about 0.7%, and the median annual property-tax bill is about $828¹¹. In a mapped regulatory floodway, fill, new construction and other development are prohibited unless a licensed engineer certifies no increase in flood levels²¹. If the property will host agritourism, do not assume it is exempt from building standards: agritourism buildings generally follow the Kentucky Building Code, with limited exceptions for buildings constructed before 2017²².