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

Yes. Residential construction in Trimble County requires a county building permit and inspections unless the project qualifies for the farmstead exemption^1,3. Kentucky's residential code applies statewide, although permits, inspections, and certificates of occupancy for a single-family dwelling depend on local ordinance; Trimble County has adopted and administers building requirements^8,9. The county publishes separate residential building and zoning applications through Planning & Zoning². A permitted structure cannot be occupied until Trimble County issues a certificate of occupancy, and permit-related fees must be paid before that certificate is granted⁵. An expired-permit renewal costs $100, and the residential application lists a $100 reinspection fee⁵.

Trimble County Planning & Zoning is the first stop for county building, zoning, inspection, temporary-use, variance, farmstead-exemption, and short-term-rental processes². The office is at 68 Wentworth Ave., Bedford, KY 40006; call (502) 665-1507 or email zoe.kemper@trimblecountyky.gov². Its page provides the Residential Building Permit Application, Zoning Permit Application, Camper Temporary Use Permit Application, and Farmstead Exemption Form for Building². Planning & Zoning reviews development proposals against locally adopted plans and regulations, and Trimble County regulates subdivision and land-development proposals². Before designing, ask the office to identify the parcel's jurisdiction and zoning district, the required applications, the inspection sequence, and the current fees^2,5,10. Bedford and Milton may have separate municipal rules².

Trimble County has county-level zoning, a published zoning map, and districts ranging from agricultural and residential to business and industrial; incorporated municipalities may administer separate local rules^2,10. We could not confirm general numeric setbacks, minimum lot size, minimum dwelling size, lot coverage, or building-height limits, so ask Planning & Zoning for the standards tied to the parcel's district². One confirmed rule requires accessory structures on qualifying agricultural-exemption parcels to stand at least 8 feet from lot lines and other structures, measured from the edge of a road right-of-way rather than the pavement¹. The agricultural zoning exemption does not waive floodplain rules, street or highway setbacks, dwelling and manufactured-home rules, building codes, inspections, or occupancy-certificate requirements¹¹. The separate farmstead building exemption requires qualifying agricultural registration, at least 10 acres in one lot, and a location outside municipal limits¹.

The North Central Health Department administers onsite sewage in Trimble County⁴. Its Trimble County Environmental Department is at 138 Miller Lane, Bedford, KY 40006 and can be reached at (502) 255-4851¹². Obtain the local health department permit before constructing, installing, or altering a septic system; the state fee is $50 plus any local board fee⁶. A qualifying homeowner may receive a permit to perform the work personally, but generally no more than once in 5 years except to repair or alter that same system⁶. The residential application requires a Health Department approval certificate for onsite sewage or a Sewer District certificate for sewer service⁵. The Health Department must inspect an existing septic system before a local building or remodeling permit is issued for a sale, building addition, or post-disaster rebuild¹³. Only about 3.3% of mapped soils lack severe limits for a conventional drain field, so make septic feasibility an early purchase contingency¹⁴.

We could not confirm a general rule allowing long-term RV living on private land in Trimble County. Planning & Zoning publishes a Camper Temporary Use Permit Application, so ask about duration, hookups, septic approval, and zoning before placing or occupying a camper². Kentucky's protection for sleeping in a lawfully parked vehicle for less than 12 hours concerns public roads, streets, or parking lots; it does not authorize residence in an RV on private land¹⁵. We also could not confirm a special tiny-home rule or minimum dwelling size; take any tiny home intended as a dwelling to Planning & Zoning for building and zoning review^1,2. For short-term rental use, an RV must be in a permitted RV park and obtain conditional-use and short-term-rental permits¹⁶. Mobile homes cannot be offered as short-term rentals¹⁶. Owner-occupied rentals need a short-term-rental permit, while non-owner-occupied rentals also need conditional-use approval and count toward a countywide cap of 25 permits¹⁶. No short-term rental may operate or advertise before Planning & Zoning issues its permit¹⁶.

1. Call Trimble County Planning & Zoning at (502) 665-1507 to confirm jurisdiction, zoning district, applications, fees, and site-plan requirements^2,10.
2. Ask the North Central Health Department for a site evaluation and obtain the onsite sewage permit before installing or altering a system^4,6.
3. Determine which public-road authority controls access and whether an encroachment permit is required; access to a state highway requires a Kentucky Transportation Cabinet permit^10,17.
4. If the site is in an identified floodplain, obtain both local and state floodplain permits; the farm-use zoning exemption does not waive floodplain rules for buildings or structures^11,18,19.
5. Submit the county zoning and residential building applications, then schedule the required inspections^1,2,3.
6. Obtain the separate state plumbing permit; a homeowner may receive one for the homeowner's own residence²⁰.
7. Complete the septic inspection before backfilling and obtain the county certificate of occupancy before moving in^5,21.

Start with septic feasibility: only about 3.3% of mapped soils are rated without severe limits for a conventional drain field, so get the Health Department's parcel-specific evaluation before treating a homesite as buildable^12,14. Check the zoning district and whether the parcel is inside an incorporated municipality, where separate local rules may apply^2,10. Check the flood map because identified-floodplain development needs local and state permits, including on otherwise exempt agricultural land^11,18,19. Verify legal access and the controlling road authority; a zoning permit does not itself grant entrance or encroachment rights¹⁰. Ask Planning & Zoning before dividing land because subdivision and land-development proposals are reviewed under local regulations². For a private water supply, use a state-certified well driller or assistant⁷. As market context, farmland value is about $4,600 per acre, while the median annual property-tax bill is $1,175 and the effective tax rate is about 0.7%¹⁴.