Effingham County, GA Fence Regulations: Retaining Walls (2026)

Section 3.36 of the Zoning Ordinance takes a permissive starting point: nothing in the zoning regulations is meant to prohibit or prevent building a retaining wall on any property in unincorporated Effingham County. That permission carries two substantive conditions. First, the wall cannot adversely affect the natural flow of surface water, a standard aimed at walls that would redirect stormwater runoff onto a neighbor's land or interfere with existing drainage patterns. Second, the wall cannot create any other adverse effect on adjacent or adjoining properties, a broader catch-all that lets the zoning administrator weigh effects beyond drainage, such as structural pressure on a shared property line.

Procedurally, § 3.36 requires that any application for a retaining wall be approved by the zoning administrator before a permit is issued; the review happens on the front end, so a property owner cannot build first and seek approval afterward. Because § 3.36 does not set a height threshold, a numeric setback, or an engineering-certification requirement of its own, the practical scope of the zoning administrator's review turns on the two named standards, drainage impact and effect on neighboring property, evaluated for the specific site and wall design submitted with the application. Applications typically accompany a site or grading plan submitted to Development Services for review.