Zoning Overlays & Bonuses in Cobb County, GA (2026)

2 rules for unincorporated Cobb County, Georgia.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Cobb County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Density Bonus Law

In unincorporated Cobb County, condominiums or townhomes built to replace demolished multifamily housing in the RM-8 or RM-12 districts can add up to 15 percent more units than were torn down, but only with a site plan the Board of Commissioners approves. The bonus does not apply to brand-new multifamily construction, and Marietta, Smyrna, Kennesaw, Acworth, Powder Springs and Austell run separate codes with no equivalent rule.

Cobb County Density Bonus For Multifamily Rebuilds

Significant Restrictions

Cobb County Code of Ordinances § 134-204(10)

(10)Special exception uses. See section 134-271 for special exception uses and requirements for all districts. Special exception uses for the RM-8 district are the uses listed in section 134-271. Additionally, condominiums and townhomes constructed to replace existing/demolished multifamily dwelling units are eligible for a density bonus not to exceed 15 percent of the total number of demolishe...

Full ordinance details →Official source ↗

Downtown Design Guide

Unincorporated Cobb County regulates redevelopment in old Downtown Mableton under County Code Section 134-286, a form-based code tied to the boundaries mapped in Table 1C of the South Cobb Town Center-Mableton Lifelong Community Plan adopted February 8, 2011. A Review Committee approves projects administratively, a Warrant Committee handles minor deviations, and any owner may instead build under the site's prior underlying zoning classification.

Cobb County Mableton Downtown Form-Based Code

Significant Restrictions

Cobb County Code § 134-286(1)(a)

(1)General procedures.(a)Intent. Due to the sustained lack of private investment in the old Downtown Mableton, it is necessary to institute development incentives to assist residences and businesses in having the community they desire. Therefore, the intent and purpose of this section is to enable and encourage the implementation of the South Cobb Town Center-Mableton Lifelong Community Plan (a...

Full ordinance details →Official source ↗

All Cobb County ordinances

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