Franklin County, KY Building Setbacks & Zoning: Structure Height Limits (2026)

Height limits in unincorporated Franklin County, Kentucky sit in each district's Bulk density and height table in the zoning chapter the Fiscal Court adopted as Ord. 8 on 10-23-1987. For the RA Rural Residential A District, § 155.137(D) prints Maximum height 35 ft. The district is a low density, large lot, single-family dwelling district that requires service by public sewer or an approved sewage treatment facility, and the same table prints a 15,000 sq. ft. minimum lot area, a 100 ft. minimum lot frontage and a Maximum lot coverage of 20%.

The other residential tables repeat the same figure. RR Rural Residential (§ 155.136) prints Maximum height 35 ft., RB (§ 155.138) prints 35 ft., RC (§ 155.139) prints 35 ft. and RS Special Residential (§ 155.140) prints 35 feet. The AG Agricultural District (§ 155.135(E)) also prints 35 ft., but its row carves out barns, silos, steeples, water towers, windmills, communication towers and other structures under the general height exceptions.

Farm buildings sit under a separate rule. Section 155.135(G) says land used solely for agricultural, farming, dairying, stock raising or similar purposes has no height requirements for agricultural buildings. That exemption is limited to agricultural buildings on such land, and buildings in a designated floodway or floodplain, or which tend to increase flood heights or obstruct flood waters, can be fully regulated. Houses and garages on residential lots have no such exemption in the RA table. Variances from a height limit are a matter for the Board of Zoning Adjustments, and Frankfort's separate city code governs inside the city limits.