How they differ
Folly and Isle of Palms are the open, public beach towns. Anyone can drive on, park and walk to the sand, and both cities license vacation rentals. The difference is that Isle of Palms has no cap, while Folly's 800-license investor cap was struck down, appealed and re-enacted in 2026, with new licenses frozen for now.
Sullivan's Island is the opposite. Rentals shorter than 28 consecutive nights are illegal, house size is capped by lot size, the height limit is 38 feet and the historic overlay adds design review. Parking is free, but there's no hotel and very little commercial space beyond Middle Street.
Kiawah and Seabrook are gated towns, and the gate changes everything: guest passes, contractor access and who can use the beach. Kiawah's only public beach access is Beachwalker County Park. Seabrook's beach is private to residents and guests.
The clubs are the biggest money difference. On Seabrook, every new owner has to buy a Seabrook Island Club membership. On Kiawah, Club membership comes only with a previously unsold Kiawah Island Real Estate homesite or a resale where the seller is offering one. I confirm that in writing before we write an offer.
All five are in Hurricane Evacuation Zone A, the first zone called out in a storm. Oceanfront lots also fall under SCDES beachfront jurisdiction, so what you can build near the dune is a state question as well as a town one.
Next: the $1.5M+ market by area · buying waterfront in Charleston · short-term rental rules
Sources
- Explore Charleston: Charleston Area Beaches
- SCEMD: 2026 Annex C, Evacuation Zones and Clearance Times
- Charleston County Emergency Management: Evacuation Zones
- Wikipedia: South Carolina Highway 171
- City of Folly Beach: Short-Term Rentals
- ABC News 4: Folly Beach to raise parking prices (Aug. 15, 2025)
- Folly Beach Code Ch. 152, Flood Damage Prevention (Zoneomics copy)
- City of Isle of Palms: Rental Licenses
- City of Isle of Palms: Zoning districts
- City of Isle of Palms: Parking
- Wikipedia: Ben Sawyer Bridge
- SCDOT: SC 703 Bridge over Intracoastal Waterway (historic bridges)
- Town of Sullivan's Island: Transportation
- Town of Sullivan's Island Comprehensive Plan: Land Use Element
- Town of Sullivan's Island: Zoning Ordinance sections on massing, size and site development
- Town of Sullivan's Island Design Guidelines Ch. 2: Design Review in the Historic Overlay District
- ABC News 4: Parking rules for Sullivan's Island
- KICA: Gate access policy update
- Town of Kiawah Island: Short-Term Rental
- Charleston County Parks: Kiawah Beachwalker Park
- Kiawah Island ARB: Frequently Asked Questions
- Kiawah Island Real Estate: Golf Resort Courses
- Kiawah Island Club: Membership
- Wikipedia: Freshfields Village
- Town of Seabrook Island: Visitor Info
- Town of Seabrook Island: Town History
- Town of Seabrook Island: STR Information Packet 2024-25
- Town of Seabrook Island: Short-Term Rentals
- Seabrook Island Club: Club Life
- Town of Seabrook Island: Ordinance 2020-18 (height limitations)
- Waterway Guide: Bohicket Marina and Yacht Club
- Wild Dunes Resort: Golf
- Wild Dunes Resort: Membership
- Wild Dunes Community Association: Gates and Security
- SCDES Bureau of Coastal Management: Beachfront Jurisdictional Area