Dorchester County, SC Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Dorchester County, SC, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.
Key Facts
- Base use listing
- § 10.3.1(m), accessory use
- Size on lots under 14,500 sq ft
- 1,000 sq. ft. max
- Standard setback
- 5 feet from property line
- Setback if over 800 sq ft
- 15 feet from property line
- Suburban Residential limit
- 1 accessory structure per lot
Summary
A storage shed is a customarily incidental accessory use under Zoning § 10.3.1(m), but its size is tiered to lot area under § 10.4.2(1)(e), from 1,000 square feet on lots under 14,500 square feet up to 15,000 square feet on lots of 15 or more acres, and it must clear a 5-foot setback from every property line.
10.4.2 Accessory Structures
(1) Residential Districts
(e) For a lot containing less than 14,500 sq. ft., accessory structures shall not exceed 1,000 in total floor area. For a lot of 14,500 square feet or more, but less than ¾-acre, accessory structures shall not exceed 1,500 square feet in total floor area... For lots containing 15 acres or more, accessory structures shall not exceed 15,000 square feet in total floor area.
(f) Except as provided in (h) below, accessory structures are permitted in the rear and side yards of the parcel, provided that no structure is located within 5 feet of the perimeter property lines. For accessory structures that exceed 800 square feet of one level floor space, such structure shall not be located closer than 15 feet from any property line.
Full Breakdown
1(m). 2(1), Accessory Structures for Residential Districts, sets the rules that actually govern a shed's size and placement. A shed can't be built before the principal house exists on the lot, and it has to sit on the same lot of record as that house; it can never be used as a dwelling or for lodging. The maximum combined floor area of all accessory structures scales with lot size: 1,000 square feet on a lot under 14,500 square feet, 1,500 square feet on lots from 14,500 square feet up to three-quarters of an acre, 2,000 square feet up to 2 acres, 3,000 square feet up to 5 acres, 5,000 square feet up to 10 acres, 12,000 square feet up to 15 acres, and 15,000 square feet on lots of 15 acres or more.
2(1)(f) sets the setback: accessory structures are allowed in the rear and side yards but can't be closer than 5 feet to any perimeter property line, and any shed larger than 800 square feet on one floor has to clear 15 feet from the property line instead of 5. 2(1)(d). 2(1)(g).
Violations & Fines
A shed built oversized, too close to a property line, or ahead of the principal house is a zoning violation enforced by the Zoning Administrator under Article XIV, § 14.2. The Administrator can order the structure removed or relocated, withhold zoning or building permits for the property until it's brought into compliance, and, if the violation continues, pursue a stop order or injunctive relief under §§ 14.2.2-14.2.3.
Frequently Asked Questions
How close to my property line can I build a shed in Dorchester County?
How big a shed can I build on my lot?
Can I build my shed before my house is built?
Does my shed count toward my lot coverage limit?
Sources & Official References
Other rules in Dorchester County
How Dorchester County compares: Shed Permit Requirements by City·Compare Dorchester County to another location·View the South Carolina accessory structures overview
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