Floodplain Info
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The Official Web Site of the State of South Carolina
!! SCAM ALERT !!
SULLIVAN'S ISLAND NEVER REQUESTS PAYMENT THROUGH WIRE TRANSACTIONS. IF YOU HAVE QUESTIONS OR NEED CONFIRMATION ON AN INVOICE FOR SULLIVAN'S ISLAND PLEASE CALL TOWN HALL AT 843-883-3198.
Sign up for Everbridge, the Town’s Emergency Notification System, to receive emergency texts and emails, and the Town's Monthly Newsletter to stay up to date on all of Town's meetings, projects and special events.
Station 31 Street at I’On Avenue is currently closed for storm water utility work. Please use an alternate route if traveling in that area.
Station 28 ½ Traffic Detour beginning March 16, 2026
There will be a presentation of the 2025 Beach Monitoring Report by Coastal Science & Engineering at the April 21, 2025 Council Meeting. Click here to review the document.
Any building or development work in the Town may require a permit prior to beginning even during emergency repairs. The Building Official must ensure that the work will comply with applicable codes, not aggravate the effects of flooding, and minimize the potential for flood damage to structures. This includes all additions, repairs, remodeling, pouring concrete, excavation, dredging, filling, dumping, bulkheading, driving of piles, clearing, fences, etc (not just the construction of a building).
Please visit the Building Department webpage to see further regulations or apply for a building permit online. If you see any development on the Island without a permit, you may contact Town Hall at 843-883-5727 or the Charleston Consolidated Dispatch at 843-743-7200.