How much does a dock cost in Charleston, SC?
Short answer: a Charleston marine contractor puts a typical permitted residential dock at $15,000–$45,000, or roughly $25–$65 per square foot installed (BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide). A four-post boat lift adds about $8,000–$15,000 installed on a sound dock (BluTide Marine Construction, Boat Lift Installation in Charleston (Jul 1, 2026)). The state permit application is $250, or $150 for walkways under 100 ft (SC Department of Environmental Services, Critical Area Permitting: Minor Activities).
Charleston dock prices
| Item | Published range | Source |
|---|---|---|
| Dock, installed | $25–$65 per sq ft | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
| Fixed piling dock | $25–$45 per sq ft | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
| Floating dock | $35–$65 per sq ft | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
| Typical permitted residential dock | $15,000–$45,000 | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
| Double-decker dock or boathouse | $15,000–$50,000+ | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
| Permitting and surveying | $500–$3,000+ | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
BluTide's sizing example: a 40 ft × 4 ft walkway (160 sq ft) plus a 10 × 12 ft pierhead (120 sq ft) is 280 sq ft. At its $40/sq ft middle-of-the-road figure that's a baseline of $11,200 before permits and add-ons (BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide).
Boat lifts
| Item | Published range | Source |
|---|---|---|
| Four-post lift on a sound dock, installed | $8,000–$15,000 | BluTide Marine Construction, Boat Lift Installation in Charleston (Jul 1, 2026) |
| Higher-capacity, elevator, floating, or new pilings | $15,000–$30,000+ | BluTide Marine Construction, Boat Lift Installation in Charleston (Jul 1, 2026) |
| National average | $8,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| National range | $2,000–$20,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
National benchmarks
| Item | Published range | Source |
|---|---|---|
| Average dock | $15,048 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Typical range | $4,074–$26,021 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Piling dock, all-in | $4,000–$20,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Floating dock, all-in | $3,000–$17,500 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
National figures include small lake docks. Lowcountry docks with long marsh walkways usually run higher.
Add-ons, repairs and upkeep
| Item | Published range | Source |
|---|---|---|
| Decking replacement | $5–$15 per sq ft | BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide |
| Dock repairs | $200–$4,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Old dock removal | $250–$1,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Wooden cover | $12,000 minimum | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Fabric cover | $1,500–$8,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Electrical hookups | $1,000–$4,000 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Water hookups | $800–$2,500 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
| Annual maintenance | $300–$1,200 | Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026) |
SC permit fees
| Item | Published range | Source |
|---|---|---|
| Critical-area application, private dock | $250 | SC Department of Environmental Services, Critical Area Permitting: Minor Activities |
| Docks with walkways under 100 ft | $150 | SC Department of Environmental Services, Critical Area Permitting: Minor Activities |
| Statutory fee (private, non-commercial) | $250; $150 for docks 100 ft or less | SC Code of Laws §48-39-145 (via Justia) |
| Dock general permit (additions to existing docks) | $100 | SC Department of Environmental Services, Critical Area Permitting: General Permits |
| Reconstruction general permit (GP-25-DR) | $250 | SC Department of Environmental Services, Critical Area Permitting: General Permits |
What moves the price
- Walkway length. Reaching water across marsh is usually the biggest variable.
- Materials. Treated pine vs. composite decking; marine-grade hardware.
- Bottom conditions. Soft mud may need longer pilings.
- Lift and float. Capacity and type of lift; size of the float and ramp.
- Access. Barge access and mobilization to your site.
- Permitting. Survey, stamped drawings and agency review.
Questions
How much does a 300 sq ft dock cost?
At the Charleston range of $25–$65 per sq ft installed (BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide), 300 sq ft works out to roughly $7,500–$19,500 before permits, a lift or a float. Long walkways add up fast.
How much is a boat lift in Charleston?
About $8,000–$15,000 installed for a four-post lift on a sound dock, and $15,000–$30,000 or more for heavier, elevator or floating lifts or when new pilings are needed (BluTide Marine Construction, Boat Lift Installation in Charleston (Jul 1, 2026)).
How much is the SC dock permit?
The SCDES application fee is $250, or $150 for docks with walkways under 100 ft (SC Department of Environmental Services, Critical Area Permitting: Minor Activities). Survey and stamped drawings cost extra.
Sources
All pages accessed November 2, 2026. Published prices change and are not a quote for your project; your written quote is what counts.
- BluTide Marine Construction (Johns Island), Boat Dock Cost in Charleston, SC: 2026 Price Guide: https://www.blutidemarine.com/how-much-does-a-boat-dock-really-cost/. Charleston docks $25–$65/sq ft installed (fixed $25–$45, floating $35–$65, citing ProMatcher data); typical permitted residential dock $15,000–$45,000; permitting and survey $500–$3,000+; ~120-day permit; board replacement $5–$15/sq ft; 6–7 ft tides.
- BluTide Marine Construction, Boat Lift Installation in Charleston (Jul 1, 2026): https://www.blutidemarine.com/boat-lift-installation-charleston-sc/. Four-post lift on a sound dock $8,000–$15,000 installed; higher-capacity, elevator, floating or new-piling projects $15,000–$30,000+.
- Angi, How Much Does It Cost to Build a Dock? (updated Sep 22, 2026): https://www.angi.com/articles/how-much-does-it-cost-build-dock.htm. National average $15,048 (178 projects); most $4,074–$26,021; boat lift average $8,000, $2,000–$20,000; repairs $200–$4,000; old dock removal $250–$1,000; add-on costs; maintenance $300–$1,200/yr.
- SC Department of Environmental Services, Critical Area Permitting: Minor Activities: https://www.des.sc.gov/programs/bureau-coastal-management/critical-area-permitting/critical-area-permitting-minor-activities. Private docks are minor critical-area activities; $250 non-refundable application fee ($150 for docks with walkways under 100 ft); stamped drawings by an SC-licensed surveyor, engineer or landscape architect; adjoining-owner information; notarized ownership affidavit.
- SC Department of Environmental Services, Critical Area Permitting: General Permits: https://des.sc.gov/programs/bureau-coastal-management/critical-area-permitting/critical-area-permitting-general-permits. General permits for additions to existing docks (boat-lift catwalks, pierhead roofs, handrails, etc.) and for reconstructing previously permitted docks (GP-25-DR, $250 fee); dock general permit fee $100.
- SC Code of Laws §48-39-145 (via Justia): https://law.justia.com/codes/south-carolina/title-48/chapter-39/section-48-39-145/. Statutory critical-area application fee: $250 for private, non-commercial permits; $150 for docks 100 ft or less.
- SC Department of Environmental Services, Status of Coastal Dock Regulations: https://des.sc.gov/programs/bureau-coastal-management/south-carolina-dock-stakeholder-workgroup/status-coastal-dock-regulations. Proposed dock rule changes paused in 2026; current dock regulations remain in effect.
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