Charleston County Building Inspection Services permits the unincorporated county, and towns that contract with it, through the EnerGov Citizen Self Service portal — while nine municipalities run their own permit authorities.
This Charleston County building permit guide covers what requires a permit, the EnerGov CSS process, the 911 address that must be posted before any inspection, the SCDES septic or sewer approval required before close-out, the beachfront jurisdictional lines, and the nine municipalities that permit their own work.
Scope: unincorporated Charleston County and towns that contract with the county, such as Awendaw and Seabrook Island. Charleston, North Charleston, Mount Pleasant, Summerville, Isle of Palms, Folly Beach, Sullivan’s Island, Kiawah Island and James Island permit their own.
Charleston County is a beachfront coastal county. A building permit is not a coastal permit — activities wholly or partially within the state's critical areas need separate SCDES authorisation. Two county rules also gate the process: the 911 address must be posted before any inspection, and final septic or sewer approval is required before close-out.
What requires a permit in Charleston County?
Building Inspection Services issues permits for unincorporated Charleston County, and for towns that rely on county permitting, from the Lonnie Hamilton III Public Services Building at 4045 Bridge View Drive in North Charleston on 843-202-6930 (Monday to Friday, 8:00am to 5:00pm). Some towns, including Awendaw and Seabrook Island, have agreements under which the county issues their building permits after a town zoning permit. Applications, payments and inspection scheduling all run through the EnerGov Citizen Self Service portal.
Nine municipalities in Charleston County run their own permit authority: the City of Charleston, Mount Pleasant, North Charleston, Summerville, Isle of Palms, Folly Beach, Sullivan’s Island, Kiawah Island and, for new permits since 1 May 2026, the Town of James Island (through SAFEbuilt; projects already in progress stay with the county). Three of those — Charleston, North Charleston and Summerville — also extend into other counties. Seabrook Island and Awendaw, by contrast, are permitted by the county. The parcel decides, and the address rarely does.
Two things gate the process here and neither is optional. Before any inspection, the 911 address must be posted on site. And final septic tank or sewer approval is required — that approval now comes from the SC Department of Environmental Services (SCDES). One naming point that trips up older paperwork: the combined state health and environment agency no longer exists. On 1 July 2024 it was split into the Department of Environmental Services (SCDES), which took the environmental programmes including onsite wastewater and coastal management, and the Department of Public Health (DPH). Permits issued by the predecessor agency before that date remain valid and are updated at renewal or modification, but anything issued from 1 July 2024 onward comes from SCDES. Forms, county handouts and third-party sites still naming the old agency are stale.
Permit required
- New construction, additions, alterations, and demolition
- Change of use or occupancy
- Electrical, mechanical, plumbing, and fuel gas work
- Tenant improvements and interior fit-out affecting structure or systems
- Work in a coastal critical area, which needs SCDES authorisation as well
- Work in a mapped flood zone, with elevation requirements
- Manufactured home placement
Typically exempt
- Painting, flooring, and cosmetic finishes
- Routine maintenance not altering structure or a regulated system
- Work inside Charleston, North Charleston, Mount Pleasant, Summerville, Isle of Palms, Folly Beach, Sullivan’s Island, Kiawah Island, or James Island (new permits since 1 May 2026)
- Like-for-like replacements not modifying a regulated system
South Carolina enforces the South Carolina Building Codes adopted by the Building Codes Council under S.C. Code Ann. § 6-9-50; the 2021 codes are in force, and the 2024 codes take effect for every county and municipality on 1 January 2027 (the energy code stays the 2009 IECC). The South Carolina Building Codes
Short on time to read all of this?
Get a free quote →Charleston County building department: who handles permitting
Building Inspection Services runs the EnerGov Citizen Self Service portal for applications, payments and inspection scheduling. The department's remit covers new commercial construction with full plan review across all disciplines, tenant improvements and interior fit-outs touching structure or systems, additions and renovations that change the footprint or structure, and change of use.
The septic and sewer question is where the agency change bites hardest. Onsite wastewater is permitted by SCDES under Regulation 61-56, and the state approval is required before the county can close out. Where there is no public or community sewer, the septic approval gates the building permit outright — SCDES states plainly that without its permits your county will not be able to issue a building permit. Onsite wastewater systems are permitted under Regulation 61-56, installers are licensed by SCDES in three tiers, and a final inspection (or a licensed installer's self-inspection filed within two business days) is required before the system is covered and an Approval to Operate is issued.
Charleston County is one of South Carolina's eight coastal counties, with genuine oceanfront. That brings the state's beachfront jurisdictional lines into play alongside everything the county requires — and unlike the county permit, coastal authorisation is not something the building department can grant.
| Detail | Information |
|---|---|
| Authority | Charleston County Building Inspection Services |
| Address | 4045 Bridge View Drive, North Charleston, SC 29405 |
| Phone | 843-202-6930 |
| Portal | EnerGov Citizen Self Service |
| Covers | Unincorporated Charleston County and towns with county agreements, such as Awendaw and Seabrook Island |
| Municipalities running their own | Charleston, North Charleston, Mount Pleasant, Summerville, Isle of Palms, Folly Beach, Sullivan’s Island, Kiawah Island and James Island |
| Before inspection | 911 address posted on site |
| Before close-out | SCDES septic tank or sewer approval |
🌊|Charleston County is a beachfront coastal county. A building permit is not a coastal permit. SCDES authorisation is required for all proposed activities located wholly or partially within the state's critical areas, and that authorisation is separate from — and additional to — the county or municipal building permit. Neither one substitutes for the other, and a local permit issued in ignorance of a critical area does not cure the omission.
In 2025, building permits issued in unincorporated Charleston County authorized 667 new privately owned housing units, all of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Charleston County permits: record types and what each covers
Charleston County issues the following records through EnerGov Citizen Self Service, with coastal and flood overlays sitting on top of several of them:
Not sure this scope needs a permit?
Get a free quote →Residential permit types
| Permit type | What triggers it | Review path | Fee basis |
|---|---|---|---|
| New construction | New dwellings, additions, and accessory structures above the local size threshold | Full plan review against the adopted South Carolina Residential Code, plus zoning | Valuation-based |
| Renovation / alteration | Structural changes, layout changes, or added plumbing, mechanical, or electrical | Plan review scaled to scope; the property maintenance and existing-building provisions apply only where locally adopted by ordinance | Valuation-based |
| Reroof | Roof covering replacement, recover, and structural deck repair | Dry-in and deck inspection; plan review rarely required | Valuation or squares |
| Solar photovoltaic | Rooftop or ground-mount arrays, with or without battery storage | Electrical review led, with structural review of the attachment | Flat or system-size based |
| Battery energy storage | Wall or floor-mounted storage added to a dwelling | Electrical review plus fire separation and location check | Flat or per-permit minimum |
| Electrical | Service changes, panel upgrades, new circuits, EV chargers, and rewiring | Trade review; filed by a licensed residential electrician or a mechanical contractor with the Electrical subclassification | Per-permit minimum or per-device |
| Plumbing | New piping, repipes, fixtures, gas piping, and water heater replacement | Trade review; filed by a licensed residential plumber or a mechanical contractor with Plumbing | Per-permit minimum or per-fixture |
| Mechanical / HVAC | Changeouts, new ductwork, and refrigeration | Trade review; filed by a licensed residential HVAC installer or a mechanical contractor with Air Conditioning or Packaged Equipment | Per-permit minimum or per-unit |
| Deck and porch | New decks, screened porches, and structural rebuilds | Structural review of footings, ledger attachment, and guards | Valuation or flat |
| Swimming pool | In-ground and above-ground pools, including residential pools | Barrier, bonding, and electrical review; residential pool work over $10,000 requires a Swimming Pools subclassification or a Residential Builder licence | Valuation or flat |
| Manufactured home set-up | Placing or re-siting a manufactured home | Zoning, floodplain, and anchoring review; filed by an LLR-licensed contractor | Flat or per-unit |
| Demolition | Full or partial demolition of a dwelling or accessory structure | Utility disconnect confirmation and site restoration check | Flat |
Commercial permit types
| Permit type | What triggers it | Review path | Fee basis |
|---|---|---|---|
| New commercial construction | Ground-up commercial, industrial, and institutional buildings | Concurrent review against the adopted South Carolina Building Code, fire, and zoning | Valuation-based |
| Tenant improvement / upfit | Interior fit-out of an existing tenant space | Building, trade, and life-safety review; accessibility attaches on change of use | Valuation-based |
| Change of occupancy | Converting a building or space to a different use group | Occupancy classification, egress, and accessibility review | Valuation or flat |
| Commercial electrical | Service, distribution, and branch circuit work | Trade review under a mechanical contractor holding Electrical | Per-permit or valuation |
| Commercial plumbing | Process piping, fixtures, backflow, and grease waste | Trade review; backflow and grease interceptor sign-off where applicable | Per-fixture or valuation |
| Commercial mechanical | Rooftop units, kitchen exhaust and hood systems, and refrigeration | Trade review; kitchen exhaust and hood systems sit under Packaged Equipment | Per-unit or valuation |
| Commercial reroof | Roof covering replacement on a commercial structure | Deck, dry-in, and attachment inspection | Valuation or squares |
| Signage | Wall, ground, and illuminated signs | Zoning review for size and placement, plus electrical where illuminated | Flat or per-sign |
| Land disturbance | Clearing, grading, and stormwater-triggering site work | Erosion and sediment control review, separate from the building permit | Acreage-based |
| Commercial demolition | Full or partial demolition of a commercial structure | Utility disconnect, asbestos notification, and site restoration | Flat or valuation |
Rather talk it over?
Call 1-855-478-4290 →Residential
- Single-discipline review in most cases
- Trade records filed separately, under a residential electrician, plumber or HVAC licence from the Residential Builders Commission (or a Chapter 11 mechanical licence)
- Residential builder licence required above the statutory threshold; residential specialty above a much lower one
- Septic properties need SCDES approval before the county can issue
Commercial — multi-discipline
- Concurrent review across building, trades, fire, and zoning
- Signed and sealed plans across every affected discipline
- Licence group caps the value of a single bid or job, separately from the permit
- Accessibility and life-safety review attach to any change of occupancy
Records you will actually see in Charleston County
| Record | What it covers |
|---|---|
| Residential building permit | New homes, additions, and alterations |
| Commercial building permit | Full plan review across all disciplines |
| Tenant improvement | Interior fit-out affecting structure or systems |
| Change of use | Converting a building from one occupancy to another |
| Trade permits | Electrical, mechanical, plumbing, and fuel gas |
| Demolition permit | Full or partial demolition |
| Manufactured home permit | Placement and set-up |
Solar permits in Charleston County
Solar in unincorporated Charleston County is filed through EnerGov Citizen Self Service as electrical work. On a waterfront parcel, establish the coastal critical area position before the array is designed, and remember the 911 address must be posted before any inspection can be made. Confirm which licences your installer actually holds before the application is filed: on commercial work a rooftop array can need the Miscellaneous Metals, Roofing or Building and Electrical subclassifications, while on homes the Residential Builders Commission registers solar installers and a residential electrician does the wiring.
Roofing permits in Charleston County
A reroof in unincorporated Charleston County is filed through EnerGov CSS. Wind uplift detailing gets close attention in the Lowcountry, and the 911 address must be posted before the inspector attends. Roofing is its own general contractor subclassification in South Carolina, and it absorbed the former General Roofing and Specialty Roofing classifications, so an older pocket card can read differently from the current licence record — check the LLR verification lookup rather than the card alone.
Rather not deal with the Charleston County building department?
Get a free quote →Solar and roofing work follow statewide licensing rules, and utilities run interconnection on their own timeline. Solar and roofing rules in South Carolina
Charleston County permit cost
Charleston County permit fees follow the county schedule and scale with the type and valuation of the work, with trade permits charged as their own records. Payments run through the EnerGov Citizen Self Service portal alongside applications and inspection scheduling.
Budget two things outside the county fee on a Lowcountry job: the SCDES onsite wastewater application where the property is not on sewer, and a coastal critical area authorisation where any part of the work sits in coastal waters, tidelands, beaches or the beach/dune system. Confirm current county amounts before budgeting.
| Fee component | How it works |
|---|---|
| Building permit | Per county fee schedule, by type and valuation |
| Trade permits | Electrical, mechanical, plumbing, fuel gas charged separately |
| Payment | Through the EnerGov Citizen Self Service portal |
| Septic or sewer | SCDES approval required, with its own fee and timeline |
| Coastal critical area | SCDES authorisation is separate and additional |
| Municipal work | The relevant city or town charges its own |
Want a precise number for a specific Charleston County project? Send us the scope and we will price the permit path before you file.
Charleston County trade permits
Electrical, mechanical, plumbing and fuel gas work each need their own permit and a South Carolina licensed contractor. Four Charleston County specifics:
Post the 911 address first
Before any inspection, the 911 address must be posted on site. It is the cheapest possible cause of a wasted inspection trip.
Septic and sewer sign-off is a state approval
Final septic tank or sewer approval is required, and onsite wastewater is permitted by SCDES under Regulation 61-56 — not by the county.
Confirm the municipality before the portal
Nine municipalities inside Charleston County run their own permit authorities. Registering on the county portal for a city parcel wastes a day.
Coastal work needs a second authorisation
Activities wholly or partially within the state's critical areas need SCDES Bureau of Coastal Management authorisation, separately from the county building permit.
South Carolina licenses contractors through two boards in the Department of Labor, Licensing and Regulation: the Contractor’s Licensing Board (general and mechanical work over $10,000) and the Residential Builders Commission (residential builders over $5,000; residential electricians, plumbers, HVAC and other specialty work over $500). Contractor licensing in South Carolina
Charleston County permit application: how to apply step by step
Here is how to get a building permit in Charleston County, from confirming the requirement through to close-out. Each step below corresponds to a real decision point where projects commonly stall.
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Get a free quote →Charleston, North Charleston, Mount Pleasant, Summerville, Isle of Palms, Folly Beach, Sullivan’s Island, Kiawah Island and James Island permit their own work; Seabrook Island, Awendaw and the unincorporated county are permitted by the county. Settle jurisdiction from the parcel.
Charleston County has genuine oceanfront. Check the SCDES beachfront jurisdictional lines and the flood mapping before design rather than at plan review.
Final septic tank or sewer approval is required. On a property not on sewer, the SCDES onsite wastewater permit runs on its own timeline — open it first.
Applications, payments and inspection scheduling all run through the portal. Register before you need to file.
New commercial construction gets full plan review across all building disciplines. Tenant improvements are required for structural, electrical, plumbing or HVAC changes.
Before any inspection the 911 address must be posted on site. Keep the permit and approved plans available through to close-out.
Inspections in Charleston County
Inspections are requested through the EnerGov Citizen Self Service portal or by email to InspectionRequest@CharlestonCounty.org; the county does not accept inspection requests by phone. Before any inspection, the 911 address must be posted on site, and final septic tank or sewer approval is required before the project can close out.
On the oceanfront, S.C. Code Ann. § 48-39-280 requires SCDES to establish and periodically review two beachfront jurisdictional lines. The baseline is the more seaward of the two; the setback line is the more landward, and it marks the landward extent of the state's direct permitting authority within the Beach/Dune System Critical Area. The beach/dune system itself runs from the mean high-water mark of the Atlantic landward to the setback line, which sits landward of the baseline by forty times the average annual erosion rate, and never less than 20 feet (S.C. Code Ann. § 48-39-280(B)). Being landward of the setback line does not automatically put you outside SCDES jurisdiction. Two other beachfront critical areas — the Beaches Critical Area and the Coastal Waters Critical Area — can extend landward of the setback line, and where they do, activities there still require coordination and authorisation from SCDES. Critical areas are dynamic. The Department asks to be contacted to determine whether critical areas extend landward on a specific parcel rather than having applicants infer it from the line viewer.
The lines move. South Carolina law requires SCDES to establish and review their position every seven to ten years, and a review cycle is running now: SCDES released a tentative schedule on 30 January 2024 for a phased establishment of new beachfront jurisdictional lines between 2024 and 2028. Under Act 173 of 2018, the Beachfront Management Reform Act, a new baseline may not move seaward of its 2008–2012 or 6 October 2017 position. If you are planning oceanfront work across the next two years, check whether your stretch has been through the current cycle before relying on a line position. SCDES publishes a South Carolina Beachfront Jurisdictional Lines Viewer showing the approximate position of the baseline and setback line together with adopted long-term erosion rates. Treat it as approximate: it is a screening tool, not a survey, and the Department's own guidance is to speak to Beachfront Management on 843-953-0200 or find the project manager for your area through its Project Manager Finder before committing a design.
Keep the permit and approved plans on site throughout, and treat the SCDES septic or sewer approval as a close-out gate rather than a formality.
Charleston County permit search and official resources
Charleston County publishes its permitting and forms through Building Inspection Services, with nine municipalities and the state coastal programme publishing separately.
Inspections are where schedules slip.
Get a free quote →- Charleston County Building Inspection Services
- Forms, fees and permits
- City of Charleston Permit Center
- SCDES beachfront jurisdictional lines
- SCDES septic and onsite wastewater
- SC LLR licence verification
- SC Building Codes Council
Frequently asked questions
Who issues building permits in unincorporated Charleston County, SC?
Charleston County Building Inspection Services, at 4045 Bridge View Drive in North Charleston on 843-202-6930. Applications, payments and inspection scheduling run through the EnerGov Citizen Self Service portal.
Which areas does the county not cover?
The City of Charleston, North Charleston, Mount Pleasant, Summerville, Isle of Palms, Folly Beach, Sullivan’s Island, Kiawah Island and, for new permits since 1 May 2026, the Town of James Island each run their own permit authorities. Seabrook Island and Awendaw are permitted by the county under agreements with the towns.
What has to happen before an inspection?
The 911 address must be posted on site. Charleston County requires it before any inspection, and an inspector who cannot identify the site cannot inspect it.
Who approves septic in Charleston County?
The SC Department of Environmental Services, under Regulation 61-56. Final septic tank or sewer approval is required, and it is a state approval rather than a county one.
My paperwork names the old health and environment agency — is that still correct?
No. The combined health and environment agency was split on 1 July 2024. Its environmental programmes, including onsite wastewater and coastal management, moved to the SC Department of Environmental Services. Permits issued before that date remain valid and are updated at renewal.
What is the contractor licensing threshold in South Carolina?
Greater than $10,000 in total cost of construction for general and mechanical contracting, under S.C. Code Ann. section 40-11-30. That figure rose from $5,000 in 2023. Residential building is 5,000 and residential specialty 500, under a separate board.
Is a building permit enough for waterfront work?
No. Charleston County is one of South Carolina's eight coastal counties. Activities wholly or partially within the state's critical areas need SCDES Bureau of Coastal Management authorisation, separately from and additionally to the county permit.
Where are the beachfront lines?
SCDES publishes a Beachfront Jurisdictional Lines Viewer showing the approximate baseline and setback line with adopted long-term erosion rates. It is a screening tool — confirm with Beachfront Management on 843-953-0200.
Are the beachfront lines changing?
Yes. South Carolina law requires SCDES to review their position every seven to ten years, and a phased establishment cycle is running between 2024 and 2028.
What does a commercial permit involve?
New commercial construction receives full plan review across all building disciplines. Tenant improvements and interior fit-outs are required for structural, electrical, plumbing or HVAC changes, and change of use is required when converting occupancy.
Which building code does Charleston County enforce?
The South Carolina Building Codes — the International Codes as adopted with South Carolina modifications by the SC Building Codes Council, then administered and enforced locally. The 2021 editions apply now.
When do the 2024 codes take effect?
1 January 2027. The Council adopted the 2024 editions and the 2023 National Electrical Code in August 2025, setting that implementation date for every county and municipality.
Simplify Charleston County permitting with Alliance Permitting
Charleston County stacks three separate approval systems on one project — county building, state wastewater, and state coastal. Sequencing them is the work.
Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.
Contractors and builders choose Alliance for Charleston County because the work is done by people who have stood at the counter:
- Right authority — unincorporated county or one of nine municipalities, resolved from the parcel rather than a Charleston address.
- State approvals opened early — SCDES wastewater and any coastal critical area authorisation started ahead of the county application.
- Close-out ready — 911 address posted and septic or sewer sign-off in hand before final is requested.
- Complete oversight — every Charleston County permit and inspection tracked across your jobs in one place.
Alliance Permitting is a permit documentation and expediting service in South Carolina. We are not a law firm and do not provide legal advice, and we are not the permitting authority.
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More South Carolina permitting guides
This guide is provided by Alliance Permitting for general information about Charleston County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.