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ADU Rules in Lexington, Kentucky

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ADU Rules in Lexington, Kentucky

Lexington is governed by the Lexington-Fayette Urban County Government (LFUCG) — a consolidated city-county government since 1974. With a population of about 323,000, it is Kentucky's second-largest city. Home to the University of Kentucky (UK) and the famous Keeneland Racetrack, Lexington is the "Horse Capital of the World" in the heart of the Bluegrass Region. Kentucky has no statewide ADU preemption law — LFUCG's Zoning Ordinance governs.

LFUCG Zoning Ordinance

The Lexington-Fayette Urban County Zoning Ordinance governs all land use in Fayette County. LFUCG has an Urban Service Boundary that concentrates residential development in designated areas.

Permitted ADU Types

Depending on the zoning district:

  • Accessory apartments: Conversion within primary structure
  • Detached accessory dwelling units: In rear yards of eligible zones

Verify current ADU provisions with LFUCG's Division of Planning.

Size Limits

Accessory dwelling units are subject to:

Verify current limits with LFUCG Planning.

Setbacks

Per LFUCG residential zone:

  • Rear: Minimum setback
  • Side: Minimum setback
  • Accessory structures: Per Zoning Ordinance

Urban Service Boundary

Lexington's Urban Service Boundary (USB) limits urban development to the inner area, preserving the outer Bluegrass farmland. Properties inside the USB have different standards than those outside. Verify which area your property is in.

Rental Licensing

LFUCG may have rental property licensing requirements. If the ADU will be rented, verify current requirements.

Permit Process

  1. Verify zoning and USB location: LFUCG Division of Planning
  2. Submit plans: LFUCG Division of Building Inspection
  3. Building permit and inspections
  4. CO: Required before occupancy

Contact

Lexington-Fayette Urban County Division of Planning 101 East Vine Street, Suite 700, Lexington, KY 40507 Phone: (859) 258-3160 Website: lexingtonky.gov

Disclaimer: Kentucky has no statewide ADU law. LFUCG Zoning Ordinance governs throughout Fayette County. Verify current ADU allowances with LFUCG before starting any project.

More about Lexington Zoning

Sources

  1. Lexington-Fayette Urban County Zoning Ordinance·library.municode.com·Accessed 2026-04-07·Direct link

FAQ

Are ADUs allowed in Lexington, Kentucky?
Lexington-Fayette Urban County has its own Zoning Ordinance. ADU allowances depend on the zoning district. Contact the Lexington-Fayette Urban County Division of Planning for current rules. Kentucky has no statewide ADU law.
What is the Lexington-Fayette Urban County Government?
In 1974, the City of Lexington and Fayette County merged into the Lexington-Fayette Urban County Government (LFUCG). The Zoning Ordinance governs all of Fayette County. Lexington is Kentucky's second-largest city and home to University of Kentucky and Keeneland Racetrack.