If you own waterfront property along the Intracoastal Waterway or one of Horry County’s tidal creeks — or you’re thinking about buying one — there’s a regulatory change working its way through the state right now that’s worth understanding before it takes effect. New South Carolina dock regulations proposed by the state’s Department of Environmental Services would meaningfully change how much dock a property owner can actually build, and in some cases whether they can build one at all. Here’s what’s actually in the proposal and where it currently stands.
What’s Actually in the Proposal
The changes come from Document No. 5468, published in the South Carolina State Register on August 28, 2026, and they amend Chapter 30 of the state’s Coastal Division Regulations — the rules governing private, joint-use, and commercial docks across eight coastal counties, including Horry and Georgetown. The proposal replaces the state’s older dock-sizing formula with a new system of tiered creek-width categories, each carrying its own hard square footage cap, and it changes several other rules that waterfront owners have relied on for years.
These aren’t minor technical tweaks. Three changes in particular stand out as the ones most likely to affect current and future waterfront owners along the Grand Strand.
Boat Storage Now Counts Against Your Total Square Footage
Under the current rules, a boat storage structure of 160 square feet or smaller — an 8-by-20 footprint, roughly — doesn’t count against a dock’s total allowable square footage. The proposed South Carolina dock regulations eliminate that exclusion entirely. Going forward, boat storage structures, roofed areas, and both covered and uncovered boat lifts would all count directly against the same total square footage cap as the rest of the dock.
In practice, this means a property owner who’s allotted, say, 350 square feet of total dock space and installs a standard boat lift with a roof could lose a meaningful share of that allowance to the lift structure itself — leaving considerably less room for an actual pierhead, seating area, or usable outdoor living space than the same allowance would have provided under current rules.
Narrower Creeks Lose Dock Eligibility Entirely
The proposal also raises the minimum creek width required for dock permitting. Docks on creeks under 21 feet wide would be prohibited outright. Creeks between 21 and 30 feet would be permitted only under narrowly defined “Special Geographic Circumstances” — generally requiring 500 feet or more of water frontage — and even then, dock size would be capped at a modest 80 square feet with no boat lifts allowed at all.
This matters because a meaningful share of smaller-creek waterfront parcels across coastal South Carolina currently qualify for dock rights under more permissive width thresholds. Narrowing that eligibility doesn’t just affect future construction — it affects the practical usability and marketability of parcels that have historically been sold and valued, at least in part, on their dockability.
Grandfathered Docks Can’t Be Enlarged
Existing docks that already exceed the new proposed size caps wouldn’t need to be torn down immediately, but they also couldn’t be enlarged or substantially modified going forward without coming into full compliance with the new, smaller limits. For an owner whose existing dock is damaged in a storm, or who simply wants to upgrade to a modern boat lift down the road, this could mean being forced to shrink the dock’s overall footprint as a condition of making any changes — a detail that’s easy to overlook until it directly affects a specific renovation or repair down the line.
This provision is also the one most likely to surface during a real estate transaction. A buyer who assumes an existing dock can simply be expanded or upgraded after closing may be in for an unwelcome surprise once they look into what the new rules would actually allow.
Channelward Extension Limits Explained
The proposal also tightens how far a dock can physically extend out into the waterway, which determines how much usable water depth a dock ultimately reaches — a detail that matters enormously for anyone planning to keep a larger boat at their own dock rather than a shallow-draft vessel. Under the proposed rule, a dock could extend no more than one-quarter of the creek’s total width if the opposite shoreline is itself dockable, or up to one-third of the width if it isn’t. On a narrower creek, that fraction-based limit can mean a meaningfully shorter dock than an owner might have built under the older calculation method, which in turn can affect whether the dock actually reaches water deep enough to be useful at low tide.
This is a detail worth running the actual math on for any specific parcel rather than assuming a general sense of “the creek is wide enough” is sufficient, since the allowable extension is tied directly to the exact width of that particular section of water.
A Few Other Changes Worth Knowing About
Beyond the headline items above, the proposal adds a new prohibition on boat maintenance — hull scraping, painting, minor engine work — performed directly on dock structures or boat storage areas, tightens the rules around how far a dock can extend channelward into a waterbody, and separates Section 401 Water Quality Certification from the standard Critical Area Permit process, which the state frames as a move to streamline permitting timelines even as it changes how that certification is obtained.
Where Things Stand Right Now
As of this writing, the formal written comment period on this proposal closed on September 28, 2026. A public hearing before the South Carolina Administrative Law Court is scheduled for October 27, 2026, in Columbia — but only if enough qualifying requests for a hearing were received by that September deadline. If that threshold wasn’t met, the hearing is called off and the regulation proceeds through the state’s standard adoption process without one.
That means this proposal is now in a genuinely active, late-stage window — not a distant possibility, and not yet a finalized rule. Waterfront owners and prospective buyers along the Grand Strand should treat this as something to watch closely over the next several weeks rather than a settled matter in either direction.
Why Real Estate Groups Are Raising Concerns
Property-rights advocates and real estate industry groups, including materials circulated to South Carolina REALTORS®, have argued that these South Carolina dock regulations go beyond streamlining permitting and meaningfully erode what waterfront owners can actually do with their property. Their core concerns track closely with the three changes outlined above: a sharp reduction in usable dock space once lifts and storage structures count against the total allowance, the loss of dock rights entirely for many small and medium-creek parcels, and new friction for owners of existing docks who want to repair or upgrade them. Whether or not every concern raised holds up exactly as described, the underlying changes themselves are real and are moving through the state’s formal rulemaking process right now.
What These South Carolina Dock Regulations Mean for Buyers and Sellers
If you’re currently shopping for waterfront property along a narrower tidal creek, it’s worth understanding how these proposed South Carolina dock regulations could affect a specific parcel’s dock rights before you’re under contract, since a property’s dockability has historically carried a real premium in this market. If you already own waterfront property and have been considering a dock upgrade or expansion, there may be real value in understanding your timeline before any new rules take effect. And if you’re selling a waterfront home with an existing dock, it’s worth being prepared to answer buyer questions about what modifications would and wouldn’t be allowed under the new framework.
It’s also worth remembering that nothing about these proposed South Carolina dock regulations is retroactively punitive toward a dock that was properly permitted under the rules in place at the time it was built. The concern for existing owners isn’t that today’s compliant dock suddenly becomes illegal — it’s that the flexibility to expand, substantially modify, or rebuild that dock after storm damage would be constrained by the new, smaller caps going forward. For a buyer evaluating a waterfront property today, that distinction is worth understanding clearly rather than assuming either extreme: an existing dock isn’t at risk of removal, but it also may not be as flexible an asset going forward as it would have been under the current rules.
We’re tracking this closely because of how directly it touches waterfront values across Horry and Georgetown counties, and we’ll continue updating as the regulation moves toward final adoption. Several Grand Strand communities built around marina and waterway access are worth a look if dock access is part of what you’re searching for, and browsing what’s currently available across Myrtle Beach is a good way to see how dockable and non-dockable waterfront properties currently compare. If you want to talk through what these changes could mean for a specific property, reach out to our team and we’ll help you think through the timing.