Louisville Metro LDC caps lot coverage at 35-50% in residential form districts, with stricter MSD stormwater rules for impervious surfaces. Ohio River floodplain lots face additional coverage and elevation requirements.
Louisville Metro LDC §5.4 establishes maximum lot coverage by form district. Neighborhood Form District (NFD, most single-family areas) allows 35-40% building coverage. Traditional Neighborhood allows up to 50%. Suburban Workplace and commercial form districts allow higher coverage subject to landscape buffers. MSD (Louisville/Jefferson County Metropolitan Sewer District) separately regulates impervious surface under its MS4 permit: any project adding or replacing 2,500+ sq ft of impervious area triggers stormwater review per MSD Design Manual. Lots in FEMA Special Flood Hazard Areas near the Ohio River, Beargrass Creek, Floyds Fork, and Mill Creek face additional restrictions under LDC §4.12 and MSD floodplain rules (finished floor 1 ft above BFE; compensatory storage for fill). Permeable pavers and green infrastructure may receive partial credit toward coverage limits.
Exceeding lot coverage: permit denial or revocation, correction order. Illegal impervious surface may need removal. MSD violations under stormwater code carry additional fines $500-$10,000. Floodplain violations can void flood insurance.
Jefferson County, KY
Jefferson County (Louisville Metro) regulates barking dogs under LMCO Chapter 91. Dogs that bark, howl, or whine persistently in a manner unreasonably distur...
Jefferson County, KY
As part of Louisville Metro Government since 2003, Jefferson County follows LMCO § 99.03. Exterior construction within 100 feet of residential property is pr...
Jefferson County, KY
Jefferson County and Louisville merged in 2003 to form Louisville Metro Government, so all unincorporated Jefferson County areas fall under LMCO Chapter 99 (...
Jefferson County, KY
Jefferson County (Louisville Metro) LDC requires residential driveways in front or street-side yards to be no wider than 20 feet and surfaced with a hard or ...
Jefferson County, KY
Jefferson County (Louisville Metro) LDC restricts RV and trailer parking in residential districts. RVs/boats over 25 feet or trailers over 16 feet are classi...
Jefferson County, KY
Jefferson County (Louisville Metro) LDC restricts large commercial vehicles in residential zones. Heavy Trucks (multi-axle vehicles, trailers over 16 feet) a...
See how Jefferson County's lot coverage limits rules stack up against other locations.
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