Charleston, SC Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- Standard cap
- 35 ft / 2.5 stories in SR-1, SR-2, SR-6, SR-7
- Higher-density cap
- 50 ft / 3 stories in SR-3, SR-4, SR-5
- Height bonus exception
- Up to 40 ft if side yards doubled, § 54-505.c
- Historic overlay
- Old City Height District overrides south of Mt. Pleasant St.
- Historic floor cap
- Residential story capped at 12 ft, § 54-306
- Enforcement
- Misdemeanor; stop-work order under § 54-950
Summary
Charleston caps residential structure height by zoning district under Table 3.1: 35 feet (2.5 stories) in SR-1, SR-2, SR-6, SR-7, SR-8 and STR, and 50 feet (3 stories) in the denser SR-3, SR-4 and SR-5 single-family districts. A separate rule governs the historic peninsula's Old City Height District.
SR-1 21 50′ 25′ 25′ 18′ 9′ 9′ 9,000(4.8) NA NA 35% 35/2½ str. 6′ 60′ 25′ Not Allowed ... In any Conservation, RR-1, SR-1, SR-2, SR-6, SR-7 and STR zoning district, the height of a dwelling may be increased to forty (40) feet, but not exceed 2½ stories, provided that the width of each side yard required by Table 3.1 for the districts in which the building is located is increased a distance equal to at least two times the added height of the buildings above the thirty-five (35) foot limitation of the district.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 114 | Zoning: Supplement 25).
Full Breakdown
Zoning Ordinance Sec. 1: Height, Area and Setback Regulations. 5 stories. SR-3, SR-4 and SR-5, the city's higher-density single-family zones, allow 50 feet or 3 stories. Diverse Residential districts DR-6 and DR-9 also run to 50 feet/3 stories. Sec. 1 is widened by twice the added height above the base 35-foot limit. 1 figures apply citywide except within the Old City Height District, defined in Sec. 54-305 as all of peninsular Charleston south of Mt. Pleasant Street. There, Sec. 54-306 substitutes a separate height-district system tied to specific streets and blocks, measured in stories or feet depending on the district, with residential floors capped at 12 feet (14 feet on a lower floor with Board of Architectural Review approval) and half-story dormers limited to 30 percent of the exterior wall width.
The Board of Architectural Review can adjust heights downward by half a story based on surrounding building context, and additions to buildings under its jurisdiction must remain subordinate in height, scale and mass to the primary structure. 1 directly; property owners inside it must confirm which of the mapped Old City Height Districts applies to their specific block before assuming a height.
Violations & Fines
Exceeding the Table 3.1 height limit, or the applicable Old City Height District limit on the peninsula, without an approved plan is unlawful under Zoning Ordinance Sec. 54-950. The administrative officer can withhold a building permit and issue a stop-work order, and each day construction continues above the limit is a separate misdemeanor offense; a damaged neighboring property owner can also seek an injunction under Sec. 54-905.
Frequently Asked Questions
How tall can a house be in Charleston's SR-1 zoning district?
Does the citywide height table apply inside the historic district?
Which Charleston zoning districts allow taller 50-foot homes?
Sources & Official References
Other rules in Charleston
Compare Charleston to another location·View the South Carolina building setbacks & zoning overview
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