Barndominiums are widely accepted across most counties.
The KY Department of Housing, Buildings, and Construction adopts and enforces the state building code. Local jurisdictions may not adopt less restrictive codes.
Primary Code
Kentucky Building Code (KBC)
Code Version
2018 IBC / 2018 IRC with KY amendments
Adoption Level
Statewide
Statewide Enforcement
Yes
State-certified inspectors handle inspections in areas without local building departments.
Residential
Required
Commercial
Required
Agricultural
Not Required
Size threshold: structures under 200 sq ft may be exempt.
Farm buildings used exclusively for agricultural purposes are exempt from the Kentucky Building Code.
Small accessory structures under 200 sq ft may be exempt.
Western Kentucky near the New Madrid seismic zone has higher seismic requirements. Moderate snow loads. Tornado risk statewide.
Wind Load
90–115 mph
moderate zone
Snow Load
10–25 psf
Seismic
A–D
Category
Flood
FEMA Regulated
Energy Code
IECC
Version
2018 IECC
Enforced statewide.
License Type
No state license required
Kentucky does not require a state general contractor license. Some cities (Louisville, Lexington) require local licenses.
Front
25–35 ft
Side
5–15 ft
Rear
15–25 ft
Varies by county.
Frost depth 24-30 inches. Karst terrain (sinkholes) in central KY affects foundation design.
Popular in rural areas. Standard permitting.
Agricultural exemption available. Horse barns especially popular in central KY.
Well-accepted in most rural counties. Growing market.
Standard permit requirements.
Full KBC compliance required.
HOAs present in Louisville and Lexington suburbs. Most rural land unrestricted.
Flood zones along the Ohio, Kentucky, and Green rivers.
Verify the information above directly from these official sources. Regulations change — always confirm with your local building department before starting construction.
Disclaimer: This guide is for informational purposes only and does not constitute legal or professional advice. Building codes, permit requirements, and zoning regulations change frequently. Always verify current requirements with your local building department, planning office, or a licensed professional before starting construction. Homestead Steel Structures & Design is not a legal authority on building codes or zoning regulations. Last updated February 2026.
