Do I need a permit for plumbing fixture or repiping in Kennesaw?

Yes. In Georgia, plumbing fixture or repiping generally requires a permit, and Kennesaw is no exception.

Repiping or moving supply and drain lines requires a plumbing permit; a simple like-for-like fixture swap (for example a faucet) using existing connections is often exempt, but confirm locally. Concealed piping must be inspected before walls are closed, so schedule the rough inspection before covering the work. Cobb County's own permitting office is the Cobb County Development and Inspections, reachable on 770-528-1000 at https://www.cobbcounty.gov/community-development/building-development/permitting. Its online permit portal is https://cobbca.cobbcounty.gov/CitizenAccess/default.aspx. It issues permits for the unincorporated county. If your city does not run its own building department, and many smaller Georgia municipalities do not, this is the office that will handle the job. The rough inspection has to happen before walls are closed, so confirm scheduling lead time when you pull the permit. Code Sec. 18-66 requires a permit to install, alter or replace any plumbing system, and the owner and contractor are jointly responsible for getting it before work starts. The permit card must be posted on site before work starts and be on the job within ten days of issuance, before any inspection is requested (Code Sec. 18-73(e)). New fixtures installed during a repipe must meet Kennesaw's local plumbing amendment flow limits in Sec. 18-132.