Marietta, GA Building Setbacks & Zoning: Setback Rules (2026)

01(H) ties the required front setback to the classification of the street a lot fronts, rather than using one flat number citywide. A house on an arterial road needs a 50-foot front setback, one on a collector road needs 40 feet, and one on an ordinary local street needs 35 feet. Side setbacks split the same way: 35 feet on the major side and 25 feet on the minor side, with a flat 35-foot rear setback regardless of street type. These figures sit inside the same Bulk and Area Regulations table as the 25,000-square-foot minimum lot size and 150-foot minimum lot width, so a lot has to clear both the area and the setback figures before the Development Services Department will issue a building permit.

The numbers step down as density rises through the R-2, R-3 and R-4 districts: R-2's front setbacks run 40/35/30 feet by arterial/collector/local, R-3 runs 40/30/25, and R-4 runs 35/25/25, with rear setbacks of 30 feet and a minor side setback of 10 feet in each of those three districts. 01(F)(4), rather than following the principal-structure figures quoted here.