In Fulton County, any wall over four feet needs a permit and engineered plans

https://troyaqkj880.capitaljays.com/posts/reinforcing-a-failing-retaining-wall-before-it-reaches-your-brookhaven-foundation-2

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.