Johns Creek, GA Fence Regulations: Retaining Walls (2026)

Johns Creek's Zoning Ordinance addresses 'fences and walls' together in Section 4.11, so a retaining wall used like a fence is subject to the same eight-foot residential height ceiling, the three-foot right-of-way setback, and the finished-side and material rules. Structural retaining walls, however, are primarily controlled by the Georgia State Minimum Standard Codes, which Johns Creek and Fulton County administer. Under the International Residential Code adopted statewide, a building permit is generally required for any retaining wall over four feet in height measured from the bottom of the footing to the top of the wall, and for any wall of any height that retains a surcharge (an additional load such as a driveway, slope, or structure above). Walls exceeding the four-foot threshold typically must be designed and sealed by a Georgia-licensed professional engineer. The city's own large-scale development standards (Section 4.4.3) also require that retaining walls visible from a right-of-way, public parking, or residential property be faced with stone, brick, or decorative concrete modular block; landscape timber as an exterior treatment is prohibited, and walls above five feet must have evergreen plantings in front. Because retaining walls often sit near drainage easements and stream buffers, the city survey/site-plan review applies. Verify thresholds with the Community Development Department before building.