**Starting March 3, 2025, the City of Mableton assumed all zoning and plan review services within their city limits. Cobb County officials have been working with city officials to ensure a smooth transition.**

If you are not sure if the project address is within city limits, visit this interactive map. 

The Plan Review Section reviews all civil construction plans for new developments and re-developments applying for a Land Disturbance Permit (LDP) to ensure compliance with Cobb County ordinances and standards.

All land-disturbing activities in unincorporated Cobb County must be reviewed and approved via the issuance of an LDP. To apply for an LDP and start the Plan Review process, please contact Cobb County Community Development Site Plan Review at (770) 528-2147 or visit the Site Plan Review page for more information.

For land-disturbing activities inside city limits, plans can be submitted for water and sewer review via email to the contacts listed below.

Contacts for Site Plan Review

Christopher Duggan
(770) 419-6380
Christopher.Duggan@cobbcounty.org

If you need a building permit in Cobb County (or a certificate of occupancy), there are three different scenarios regarding building permits/CO’s and the commercial permit application within Cobb County.

1. Within Unincorporated Cobb County:

All projects in unincorporated Cobb County must begin the permit review process at the Building Permit office with Cobb County Community Development. Email application and plans to CommBldgApplication@cobbcounty.org. The Building Permit office will distribute the document to all departments for review, including the Water System.

CCWS will approve all unincorporated Cobb County building reviews via the Citizen’s Access portal. 

For further information, visit: https://www.cobbcounty.org/community-development/development-and-inspections/building-permits

2. Within the City Limits of Acworth, Kennesaw, Mableton, or Powder Springs:

If the project address is within the city limits of Acworth, Kennesaw, Mableton, or Powder Springs, the commercial building permit application must be submitted directly to both the Cobb County Fire Marshal’s office and Cobb County Water System. Information about submitting to the Fire Marshal can be found at the Fire Marshal’s website. To submit to the Water System, a completed Commercial Permit Application form (obtained from the Fire Marshal’s website) and a copy of the plans must be submitted to CCWSPlanReview@cobbcounty.org

Once the application is submitted, it will initiate the Water System’s plan review. Please allow five business days for the Water System to complete their initial review.

3. Within the City Limits of Austell, Marietta, or Smyrna:

If the address is within the city limits of Austell, Marietta, or Smyrna, it would not fall under the jurisdiction of the Cobb County Fire Marshal’s office. Instead, you would submit your project to the city in which the project is within. Note that although the project may be within the limits of one of these three municipalities, it may be a Cobb County Water System customer. Contact CCWS Engineering Commercial Building Permit Review for determination if permit review is required and the subsequent steps for approval.

CCWS contacts for commercial building permits:

Christopher Duggan
(770) 419-6380
Christopher.Duggan@cobbcounty.org

Susan Garrett
(770) 419-6324
Susan.Garrett@cobbcounty.org

Cobb County requires that the subdivision of land into two or more parcels or lots shall be platted in accordance with the Georgia Plat Act and electronically filed with the Cobb County Clerk of Superior Court. Subdivision means all divisions of a tract or parcel of land into two or more lots, building sites, or other divisions for the purpose, whether immediate or future, of sale, legacy, or building development.

1. Plat Review Process for Parcels within Unincorporated Cobb County

All plats in unincorporated Cobb County must begin the plat review process with the Cobb County Community Development Site Plan Review. You can reach them at (770) 528-2071. The Site Plan Review office will circulate the plat to the relevant Cobb County departments for review and provide comments to the applicant.

2. Plat Review Process for Parcels within City Limits.

For plats within city limits, you must submit your plat to the city of jurisdiction and to Cobb County Water System (CCWS) for review. CCWS will approve the plat once all comments have been addressed. It is the applicant’s responsibility to contact CCWS to confirm that all comments have been resolved and to schedule an appointment for final plat approval and signature.

CCWS Contact for Plat Review:

Michael Watson
Phone: (770) 419-6320
Email: Michael.Watson@cobbcounty.org