Accessory Structures in North Charleston, SC (2026)
2 verified accessory structures rules for North Charleston, South Carolina, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
North Charleston allows one accessory dwelling unit per R-1 lot as a conditional use, capped at two-thirds the size of the main house or 800 square feet, with an extra parking space required and no short-term rentals.
North Charleston Accessory Dwelling Unit Rules
Some RestrictionsNorth Charleston Code of Ordinances, Appendix A (Zoning Regulations) § 5-1(b)(8)
Accessory dwellings provided: (i)The property is not located in the Olde North Charleston Historic or Neighborhood Conservation Districts. (ii)The property has a minimum lot size of four thousand five hundred (4,500) square feet. (iii)No more than one (1) ADU per lot is permitted. (iv)The accessory dwelling is subordinate to the principal dwelling so that the dwelling is no more than two-thirds...
Shed & Carport Rules
Sheds and other rear-yard accessory buildings in North Charleston's R-1 district max out at eighteen feet to the ridge, need six feet of clearance from other structures and three feet from interior lot lines, and can cover no more than 40 percent of the rear yard.
North Charleston Shed Size & Setback Rules
Some RestrictionsNorth Charleston Code of Ordinances, Appendix A (Zoning Regulations) § 6-1(c)(3)(a)(i)
Forty (40) per cent of the area of the rear yard may be occupied by: (i) An accessory building not more than eighteen (18) feet in height to the ridge, or the height of the existing residence, whichever is less, and at least six (6) feet from any structure and three (3) feet from any interior line.
Looking for Charleston County county-wide rules?
County ordinances apply to unincorporated areas and may supplement North Charleston city rules.
Accessory Structures in Charleston County →