For uses in Chatham County's R-districts, Sec. 4-6.2 caps building coverage at 40 percent of the lot. Single-family lots are governed mainly by minimum lot area: 12,000 square feet in R-1-A, 21,000 in R-1-B, and 32,000 in R-1-C (Sec. 4-6.1).
The county controls bulk through both a building-coverage cap and minimum lot-area standards. Sec. 4-6.2 lists a maximum building coverage of 40 percent for uses in the R-A, R-1, R-1-A, R-1-B, R-1-C and R-2 districts. For dwellings, Sec. 4-6.1 sets minimum lot area per unit by district: 12,000 square feet and 70 feet of width in R-1-A, 21,000 square feet and 85 feet in R-1-B, 32,000 square feet and 100 feet in R-1-C, and 6,000 square feet and 60 feet in other one-family districts served by public water and sewer. Substandard existing single-family lots under 6,000 square feet may increase maximum coverage on a sliding scale under Sec. 5-4.4.
Exceeding the 40 percent building-coverage cap or platting below the minimum lot area can cause permit or plan-review denial and, if built, code-enforcement action requiring removal of excess structure or a variance.
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Chatham County, GA
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See how Chatham County's lot coverage limits rules stack up against other locations.
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