A setback is a required minimum distance from a lot line or street right-of-way that establishes an area within which a structure shall not be erected. This term is used to describe front, side, rear, and interior distances on a property lot and vary with the zoning district, roadway, or other zoning elements. Setbacks may or may not be indicated on your property plat; and they may have changed since your plat was filed.
You can review the Town of James Island Zoning and Land Development Regulations.
Always check with the Town Planning Department at (843) 795-4141 to be sure of setbacks and other regulations before beginning a project.