Dock permit in SC: how dock and boat lift permits work

Who reviews a dock permit

Three offices look at a private dock, and each one has its own question.

• The state: SCDES Bureau of Coastal Management permits work in tidal water and marsh, known as the critical area
• The federal government: the Army Corps of Engineers, Charleston District, reviews structures in navigable water
• Your town or county: the building office issues the building permit and checks buffers and zoning
• Your neighborhood: some communities have a dock master plan that fixes where each dock may go

What the state application needs

The state application is filed online. A private dock is usually a minor application. You need a signed and notarized statement that you own or control the property, and drawings stamped by a South Carolina surveyor, engineer or landscape architect.

The fee is $250, or $150 for a dock with a walkway shorter than 100 feet. It is not refunded if the permit is refused.

The state then posts a public notice for 15 days. During that time you also have to run a notice in a newspaper for one day and send in proof.

How long a dock permit takes

State law gives the agency 30 days to act on a minor application. The clock starts when the application is complete, not when it is first sent. Missing drawings or questions from the reviewer stop it.

The federal and local reviews run on their own schedules. In Beaufort County, the Corps requires written verification before work starts on a private dock or lift under its regional dock permit. That permit runs to December 14, 2026, so ask the Charleston District which permit applies to work after that date.

A state permit, once issued, gives you five years to finish the work.

How big a dock can be

The state sets dock size by the width of the creek, measured from marsh edge to marsh edge. The area limits cover the pierhead and floats. Walkways are generally limited to 4 feet wide.

• Creek under 10 feet wide: no dock
• Creek 10 to 20 feet wide: only in narrow cases, up to 50 square feet, no boat lift
• Creek 20 to 50 feet wide: up to 120 square feet, one boat storage structure
• Creek 51 to 150 feet wide: up to 160 square feet, up to two boat storage structures
• Creek wider than 150 feet: up to 600 square feet
• Generally one dock per lot, set back 20 feet from extended property lines

Boat lifts and permits

A boat lift counts as part of the dock. Adding one to a permitted dock usually means an amendment if your permit is still active, or a new permit if it is not. Lifts must be open sided, with a catwalk no wider than 3 feet on one side.

On creeks narrower than 20 feet, a dock may not have a lift at all. Check the width before you buy one.

Repairs and rebuilding

Small repairs to a lawful dock that is still standing and in use, kept to its original size, can qualify for a written maintenance approval instead of a full permit. New deck boards are the usual example.

A major rebuild, an addition or a change of layout goes back through review, even on the old footprint. A dock destroyed by a storm can generally be rebuilt as it was within five years, with approval. Find your old permit and take dated photos before any work starts.

Are the dock rules changing

SCDES has proposed changes to its coastal dock rules. One would count the area inside an open boat lift toward a dock's size limit. The changes still need approval from the General Assembly, so the rules above are the ones in force as this is written. The agency keeps a status page for the dock regulations. Check it before you pay for drawings.

Who files the application

The permit is issued to the property owner, or to an agent the owner names. The owner stays responsible for meeting its conditions, so read them before you sign.

We help owners put the application together and build only what the approved drawings show. If you already hold a dock permit, bring it to the first visit.