Fayette County, GA Building Setbacks & Zoning: Lot Coverage Limits (2026)

Fayette County's zoning ordinance, Chapter 110 of the Code of Fayette County, sets maximum lot coverage as part of the dimensional requirements for specific zoning districts in unincorporated Fayette County, not as a single county-wide rule. Under Section 110-140(d)(3)a, the RMF Multi-Family Residential District limits lot coverage to no more than 40 percent of any development site, counting buildings, structures and parking areas. The ordinance expressly excludes driveways, sidewalks, covered patios, recreation facilities and swimming pools from that 40 percent calculation, so a multifamily site can add substantial paved amenity area without tripping the cap.

The RMF section also requires private open space contiguous to each unit and reserves land for shared recreation. In the county's two general commercial districts, Community Commercial (C-C) under Section 110-143(d)(9) and Highway Commercial (C-H) under Section 110-144(d)(9), the lot coverage limit including structures and parking rises to 60 percent of total lot area. The single-family residential districts, from the two-acre R-78 and R-75 zones down through R-20, list minimum lot area, lot width, floor area and yard setbacks in their dimensional requirements but do not set a separate lot coverage percentage; density in those zones is instead controlled through minimum lot size and setback depth.

Anyone platting a subdivision, adding a driveway or parking area, or converting open space to impervious surface in RMF, C-C or C-H should verify the running coverage total with the Fayette County Planning and Zoning Department before construction, since coverage is checked against the site plan required for development approval.