Marietta, GA Short-Term Rentals: Occupancy Limits (2026)

Marietta has not enacted its own short-term rental ordinance, so there is no Marietta-specific guest cap, persons-per-bedroom rule, or STR-specific occupancy formula in the city code. Cobb County's STR ordinance, codified at Chapter 78, Article III, Division 11, Sec. 78-407, applies by its own terms to 'any property within the unincorporated areas of Cobb County' and does not bind properties inside Marietta city limits. Within unincorporated Cobb, Sec. 78-407(h)(3) cross-references Sec. 134-1, the zoning chapter's definitions, which sets the underlying occupancy standard for single-family dwellings - at least 390 square feet of living building square footage (per the Cobb Tax Assessor records) per adult occupant - and limits a single-family dwelling to one family or two-or-fewer unrelated adults plus their children/grandchildren. STR owners in Marietta should treat the 390 sq ft per adult standard and the maximum-occupancy posting practice required by Cobb Sec. 78-407(h)(8) as best-practice guidance, but enforcement inside the city falls back on Marietta Code Pt. 10, Ch. 10-6 (noise), the city housing/property maintenance code, and zoning's residential-use definitions rather than a numeric STR cap. Hosts using Airbnb or Vrbo should set and post a maximum-occupancy figure in their listing to manage parties and noise complaints.