Building permits in unincorporated Charleston County — South Carolina's coastal Lowcountry county — are issued by Building Inspection Services, with applications, payments, and inspection scheduling through the EnerGov Citizen Self Service (CSS) portal.
This Charleston County building permit guide covers what requires a permit, how fees work, the EnerGov CSS process, trade permits, and inspections — so your Charleston County project starts clean.
Charleston County permits unincorporated areas (and some areas that rely on county permitting). Municipalities — Charleston, Mount Pleasant, North Charleston, Summerville, and Isle of Palms — generally have their own permit authorities. Before any inspection, the 911 address must be posted on site, and final SC DHEC septic-tank or sewer approval is required.
What requires a building permit in Charleston County?
Under the South Carolina building codes (the International Codes as adopted with South Carolina modifications by the South Carolina Building Codes Council, then locally administered and enforced), a permit is required before you construct, enlarge, alter, repair, move, demolish, or change the occupancy of most structures and systems. Common triggers include:
Permit required
- New construction, additions, and renovations
- Structural / load-bearing alterations and demolition
- Reroofing, windows, doors, and exterior changes
- Electrical service changes and most wiring alterations
- Mechanical / HVAC installations and changeouts
- Plumbing alterations, repipes, and water heaters
- Decks, pools, accessory structures, and signs
- Change of occupancy or use
Typically exempt
- Painting, flooring, cabinetry, and cosmetic work
- Like-for-like fixture/device swaps by a licensed contractor
- Routine maintenance not altering structure or systems
- Small projects expressly exempt by code (confirm first)
Exemptions are narrow and scope-specific. When unsure, confirm with the building department before starting — see the penalty note below.
Get the permit issued before starting work. Building without one exposes the owner to penalties and stop-work orders. The permit card must be posted in a conspicuous, weather-protected place until the Certificate of Occupancy is issued.
Who handles permitting in Charleston County?
Plan review and inspections run through Building Inspection Services for building, mechanical, electrical, plumbing, and fuel-gas work. South Carolina's Contractor's Licensing Act requires general and mechanical construction to be performed by licensed contractors, and final SC DHEC septic or sewer approval is required before occupancy.
| Detail | Information |
|---|---|
| Office | 4045 Bridge View Drive, North Charleston, SC 29405 |
| Phone | Building Inspection Services: (843) 202-6930 |
| Online portal | EnerGov Citizen Self Service (CSS) — account required |
| Covers | Unincorporated Charleston County (cities run their own) |
| Before inspections | 911 address posted; permit card displayed on site |
| Enforced code | South Carolina building codes; SC DHEC septic/sewer |
Apply through the EnerGov CSS portal. Create a CSS account, then choose Apply, then Permits, then the appropriate permit type, and complete the application assistant steps and upload required plans (you may also apply in person). Sub-trade inspections (electrical, mechanical, plumbing, fuel-gas) are scheduled under the project's building permit, while stand-alone trade permit inspections are scheduled within the trade permit.
Charleston County building permit cost
Charleston County building permit fees are set by the county fee schedule and based on the type and valuation of work, with separate trade permit fees; permit activity generally begins at work valuations above $1,000.
Final SC DHEC septic-tank or sewer approval is required before occupancy, and commercial projects require a permanent service affidavit. Confirm current amounts before budgeting.
| Fee component | How it works |
|---|---|
| Building permit fee | Per county fee schedule (type & valuation) |
| Trade permits (E / P / M / gas) | Charged separately per trade |
| Plan review | On projects requiring review (often above $1,000) |
| DHEC septic/sewer | Final approval required before occupancy |
| Commercial | Permanent service affidavit required |
| Work-without-permit | Penalties and possible stop-work orders |
Want a precise number for a specific Charleston County project? Send us the scope and valuation and we'll return a fee estimate alongside a filing timeline.
Charleston County trade permits
Electrical, plumbing, mechanical, and fuel-gas work needs its own permit and a South Carolina-licensed contractor, filed in the EnerGov CSS portal.
Electrical permits
Required for service upgrades, panels, solar PV, and most wiring, performed by a SC-licensed electrical contractor; all electrical installations must be complete or properly terminated for final.
Plumbing permits
Required for new plumbing, repipes, water heaters, fixtures, and gas piping, performed by a SC-licensed plumbing contractor; final DHEC septic or sewer approval is required.
Mechanical (HVAC) permits
Required for HVAC changeouts, ductwork, refrigeration, and fuel-gas systems, performed by a SC-licensed mechanical contractor. Specialized systems are permitted and inspected separately.
Miscellaneous & specialty
Reroofs, decks, pools, accessory structures, and signs are permitted separately. Coastal/flood requirements affect design and elevation, and the 911 address must be posted before any inspection.
Verify your contractor's license. South Carolina licenses commercial general and mechanical contractors through the SC Contractor's Licensing Board, and residential builders, residential specialty contractors, and home inspectors through the SC Residential Builders Commission — both under the SC Department of Labor, Licensing and Regulation (LLR). A license is generally required once the value of the work exceeds $5,000 (S.C. Code 40-11-260 for commercial/mechanical; the Residential Home Builders Act for residential). Verify before signing; the property owner is responsible for ensuring a permit is obtained.
How to get a building permit in Charleston County
Confirm jurisdiction & register
Confirm the parcel is in unincorporated Charleston County (or county-permitted area) and create an EnerGov CSS account.
Prepare your documents
Assemble the application, stamped plans, SC license documentation, and DHEC septic/sewer documentation as applicable.
Apply in CSS
Choose Apply, then Permits, then the permit type; complete the assistant and upload plans (or apply in person).
Plan review & corrections
Building Inspection Services reviews; resolve comments and resubmit.
Pay fees & pull the permit
Pay the calculated fees, then post the permit card and the 911 address on site.
Schedule inspections through close-out
Schedule building and sub-trade inspections in CSS; secure final DHEC approval. Clear all inspections for your Certificate of Occupancy.
Inspections in Charleston County
Schedule inspections through EnerGov CSS — sub-trade inspections are scheduled under the project's building permit, and stand-alone trade inspections within the trade permit. The 911 address and permit placard must be posted and visible from the road, with field-copy plans on site. Typical checkpoints include footing/foundation, rough-in MEP, framing, insulation, and final.
Final SC DHEC septic-tank or sewer approval is required, and for commercial a permanent service affidavit; the building must meet all requirements for immediate occupancy before a Certificate of Occupancy is issued.
Official Charleston County permitting resources
- 🏛️ Charleston County Building Inspection Services
- 💻 Inspections & EnerGov CSS
- 📋 Forms, fees & permits
- 🪪 SC Contractor's Licensing Board (LLR)
- 📘 SC Building Codes Council
- 🗺️ SC DHEC (septic/sewer)
Simplify Charleston County permitting with Alliance Permitting
Charleston County's EnerGov CSS workflow, DHEC septic/sewer sequencing, and 911-address posting reward applicants who line up approvals and submit complete packages. Alliance Permitting is a permit expediter for Charleston County — our permit expediting services pair AI-driven document review with experts who know the Building Inspection Services and CSS process, so your Charleston County submissions move faster.
Trusted by leading builders and brands — including Dream Finders Homes, Tesla, Verizon, Hyatt, and Sunnova.
Contractors and builders choose Alliance for Charleston County because we deliver:
- Local expertise — we know Charleston County Building Inspection Services, the EnerGov CSS portal, and the DHEC septic/sewer steps.
- Complete oversight — track every permit and inspection across all your jobs in one place.
- Error-free submissions — AI pre-checks plus expert review catch issues before they become correction cycles.
Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the building department through issuance — including preparing private-provider documentation where that option is available. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
Ready to break ground in Charleston County sooner?
Let Alliance prepare, file, and track your unincorporated Charleston County permits while you stay focused on building. Get a free, no-obligation quote today.
More South Carolina permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with Charleston County Building Inspection Services before filing. This is not legal advice.