Everything you need to know about getting a deck permit in Charleston: fees, requirements, exemptions, and direct links to the Charleston Permit Center.
Permit Fees
$40 application fee. Building permit: $460 for first $100,000, plus $3.00 per additional $1,000. Plan review: 50% of building permit fee.
Processing Time
Contact Permit Center for current processing times.
Apply Online
Yes — via Charleston Online Portal
Building Code
2021 South Carolina Residential Code (based on 2021 IRC with SC amendments)
Contact: (843) 724-7311
Freestanding decks not more than 30 inches above grade per 2021 SC Residential Code.
If your deck does NOT meet all exemption criteria, you must obtain a permit before construction. Building without a required permit can result in fines, stop-work orders, and required demolition.
Review the exemption criteria above. If your deck exceeds any threshold, a permit is required.
You'll need a site plan, deck dimensions, framing details, and footing specifications. Check Charleston's specific documentation requirements.
Apply through Charleston Online Portal . Pay the permit fee at submission.
Once approved, post your permit visibly and schedule required inspections (typically footing, framing, and final).
Get an instant cost estimate for your deck project in Charleston.
Deck Cost CalculatorJoin homeowners who get free insights on project costs, permit changes, and money-saving tips. No spam — unsubscribe anytime.
Free forever. No credit card. Unsubscribe in one click.
Sources
Data verified April 2026. Fees, processing times, and requirements are subject to change. Always confirm current information with Charleston's Charleston Permit Center.