In Fulton County, any wall over four feet needs a permit and engineered plans
https://raymondxpbt096.image-perth.org/replacing-a-rotting-timber-retaining-wall-with-engineered-concrete-in-buckhead-1
In Fulton County, any wall over four feet needs a permit and engineered plans. Knowing this rule protects your investment, ensures safety, avoids fines, and speeds approvals for durable, code-compliant construction.