A building permit submittal package on a desk with rolled construction drawings, forms on a clipboard, and a hard hat.

Permitting & Engineering in South Carolina

These two go together because one is useless without the other. South Carolina has one mandatory set of codes that every municipality and county must enforce and may enforce only, and Regulation 8-236(C) prohibits local jurisdictions from writing or publishing any other building codes in part or in whole. What that makes worth knowing is exactly what is in force where you are building: Regulation 8-236(D) keeps the code’s appendices out unless they were specifically referenced or specifically included by name and letter designation at adoption, and the Building Codes Council states that only the modifications listed on its own website are valid, with unapproved local modifications invalid and unenforceable.

Permit-ready stamped drawings
Engineered to your jurisdiction's criteria
Start your project

How a permitting & engineering project runs

Four stages, in this order. The sequence matters more than it looks: getting engineering and permitting settled before anything is fabricated is what keeps a build from stalling.

1

Jurisdiction, then what is actually adopted there

First we establish which department holds the parcel and how it runs permits, since § 6-9-50(A) leaves the code’s administrative chapter to local adoption. Then we establish what is in force: whether any appendix was named at adoption, and whether any local modification applies. Under the 2021 codes exactly one local residential modification has been granted anywhere in South Carolina — Greenville County, 2021 IRC Appendix AF, Radon Control Methods — and even that took effect only on adoption by local ordinance.

2

Structural engineering and the seal

A South Carolina licensed Architect or Engineer analyses the frame and seals the foundation, anchor bolt layout, framing and connection details where the design departs from the code’s prescriptive methods. § 40-22-270(3) requires a licensee’s plans to be stamped with seals when filed with public authorities, § 40-22-270(4) when issued for use as job site record documents at construction projects within this State, and § 40-22-270(6) requires the licensee to sign and date under or across the face of the seal without obscuring the name or licence number.

3

Assemble and submit

Sealed plans, energy documentation, structural calculations, component drawings, site plan, and the ancillary approvals reviewers ask for late. South Carolina names the owner as well as the contractor on some of this: where an owner relies on a Chapter 11 owner exemption, § 40-11-420(C) puts the permit in the owner’s own name and requires the application to list the name and licence number of all licensed contractors performing work on the project.

4

Inspections through to occupancy

We answer review comments quickly, then schedule and meet the department’s own inspection sequence — which is a local ordinance here, not a statewide list. The person doing the inspecting holds a state registration: § 6-8-40 makes it unlawful to act as a building codes enforcement officer, contract inspector or special inspector without authorisation from the Building Codes Council and the Department of Labor, Licensing and Regulation, with registrations expiring on 1 July of each odd-numbered year unless renewed on approved continuing education.

Overhead view of architectural floor plan and structural elevation drawings spread on a workbench with a scale ruler and pencil.
What is actually in force where you are building

In South Carolina the appendices are out unless they were named, and a local amendment that is not on the Council's list is invalid

Two provisions decide most permit-counter arguments in this state, and almost nobody quotes them. Regulation 8-236(D): "The appendices included with all building codes are not intended to be enforced unless specifically referenced in the texts of the codes or specifically included by name and letter designation at the time of adoption by Council." So an appendix is not part of the South Carolina code merely by being printed in the book — it has to have been called out. And the Building Codes Council's own adoption notice for the 2021 codes says the same thing about local variations: "The International Codes are to be used in conjunction with the latest code modifications approved by the Council. Only the modifications approved and listed on the Council's website are valid for use in the State. Building code modifications that have not been approved by the Council are invalid and cannot be adopted, employed or enforced by municipalities and counties." The list of granted local residential modifications under the 2021 codes is one item long: Greenville County, 2021 International Residential Code Appendix AF, Radon Control Methods, Sections AF101.1 through AF103.12, authorised on the Council's meeting minutes of 22 March 2022 — and even that takes effect only after adoption by local ordinance. So for the rest of South Carolina the honest sentence is that there are no local amendments to the residential code; the state's code is the code.

Where we deliver permitting & engineering

In South Carolina the code is not what changes when you cross a city limit. § 6-9-10(A) makes enforcement mandatory for every municipality and every county, and § 6-9-30(A) puts the unincorporated area of each county under a building official too, so acreage outside town is covered rather than exempt. What changes is who reviews the drawings and what they ask for: § 6-9-50(A) leaves the adopted codes’ administrative chapter — permits, plan review, inspection sequencing, the board of appeals — out of the statewide adoption unless the local governing body adopts it by ordinance. And the wind and seismic criteria change on the Building Codes Council’s maps, whose boundaries § 6-9-105(C) requires to follow physical features rather than county lines. Two parcels twenty miles apart can carry completely different engineering.

Serving clients across the entire region.

Every locality we build in has its own reviewer, its own fee schedule and its own filled-in design criteria. The service area pages set out what each one publishes.

View our full service area →
Before you commit

What actually decides the price

Square footage is the number everyone leads with, and it is rarely the one that moves a barndominium budget. These four do.

  • Which edition your permit lands under

    The 2021 South Carolina codes took effect on the Council's implementation date of 1 January 2023. The Council adopted the 2024 editions on 26 August 2025 with an implementation date of 1 January 2027. Two provisions fix which applies to your project, and they say the same thing from two directions: § 6-9-130(A) provides that buildings must be inspected in accordance with the codes in effect for the locality on the date of the issuance of the original building permit, and Regulation 8-236(B) provides that work for which a completed building permit application has been approved before the implementation date will be allowed to be completed and must be inspected under the codes in effect at the time the original permit was issued. On a build that spans the changeover, the permit date is the fact that matters.

  • Whether an appendix or a local modification actually applies here

    Worth settling in writing at the outset, because it is the most common source of a late surprise. Regulation 8-236(D) keeps appendices out of the code unless they were specifically referenced in the code text or specifically included by name and letter designation at adoption. Regulation 8-236(C) prohibits local jurisdictions from writing or publishing any other building codes in part or in whole. And the Council publishes its granted local modifications; anything not on that list is invalid by the Council's own statement. The one granted residential item in the state is Greenville County's radon appendix.

  • Who is named on the application, and what they have to show

    South Carolina puts the owner in the frame as well as the contractor, which is unusual enough to plan around. § 40-11-200(B) makes it a violation of the general contractor chapter for an awarding authority, owner, contractor or agent to consider a bid, sign a contract, or allow a contractor to begin work unless the bidder or contractor has first obtained the licences required — and provides that bids or contracts may not be reconsidered or resubmitted if the contractor was not properly licensed when the initial bid or contract was submitted. Where an owner is relying on one of the Chapter 11 owner exemptions, § 40-11-420(C) puts the permit in the owner's own name and requires the owner to list on the application the name and licence number of all licensed contractors performing work on the project.

  • What building without one costs

    § 6-9-80 sets a graduated civil penalty and a cure period. A first violation draws a fine of not more than $200, and the person must be given seven calendar days to remedy the violation or submit a plan of correction before being charged with a second violation; failure to do so draws a fine not to exceed $2,000, with each day a separate offence. Injunctive relief and mandamus are also available — and notably not only to the jurisdiction: the section reaches an action by an adjacent or neighbouring property owner who would be damaged by the violation. On rural acreage where a neighbour has a view of the build, that last clause is worth knowing about.

A building permit submittal package on a desk with rolled construction drawings, forms on a clipboard, and a hard hat.

Permitting & Engineering in South Carolina: common questions

7 questions we get asked most often about building in South Carolina. If yours is not on the list, ask it directly.

Start your project
Do the code's appendices apply to my build?
Only the ones that were adopted, and the rule is written down. Regulation 8-236(D) provides that "The appendices included with all building codes are not intended to be enforced unless specifically referenced in the texts of the codes or specifically included by name and letter designation at the time of adoption by Council." That is a real limit, because the printed code book contains appendices covering everything from sound transmission to swimming pools, and being in the book is not the same as being in force in South Carolina. There is exactly one place in the state where an appendix has been added locally under the 2021 codes: Greenville County, for 2021 International Residential Code Appendix AF, Radon Control Methods, Sections AF101.1 through AF103.12, granted on the Council's minutes of 22 March 2022 and effective after adoption by local ordinance. If a plan reviewer cites an appendix, the fair question is whether it was named at adoption or granted as a local modification — and the answer is a matter of public record on the Council's own pages rather than a matter of opinion.
My department says the code requires something I cannot find in the code. What now?
Establish which of three things it actually is, because South Carolina keeps them cleanly separate. It could be a Council modification, in which case it is published — the Council's adoption notice states that only the modifications approved and listed on its website are valid for use in the State, and that unapproved modifications are invalid and cannot be adopted, employed or enforced by municipalities and counties. It could be an attempt to enforce a local building rule, which is not permitted: § 6-9-10(A) says a municipality or county "shall enforce only the national building and safety codes provided in this chapter", and Regulation 8-236(C) says local jurisdictions are prohibited from writing or publishing any other building codes in part or in whole. Or — most often — it is not a building-code requirement at all but a land-use one, which is entirely legitimate, because § 6-9-100 provides that the building-code chapter is cumulative to other local ordinances and does not limit the authority of counties or municipalities. Zoning, setbacks, subdivision rules, stormwater ordinances and land-development standards all live in that preserved space. Asking which instrument a requirement comes from is not adversarial; it is the fastest route to complying with it.
Can my county get its own amendment to the residential code?
It can ask, and the burden is heavy enough that almost none have. § 6-9-105(A) provides that where a municipality or county contends the codes do not meet its needs due to local physical or climatological conditions, the proposed variations and modifications must be submitted to the Council — which decides. § 6-9-63(C) describes the Council's primary function as accepting all requests for variation and determining which are justified by local conditions, and § 6-9-63(E) requires a two-thirds vote of members in attendance, with nine of the sixteen members a quorum. Regulation 8-245 sets the proof: the jurisdiction has to establish that the need is physical — unusual soils, unusual geological conditions including earthquakes, unusual geographical conditions, extreme topography or another natural condition — or climatological, meaning weather conditions unusual to or recurring in the area, expressly including hurricanes, tornadoes, damaging wind, snow, flooding caused by rainfall and lightning. It must also show how the code fails to meet that need and how the modification still provides a reasonable standard of public health, safety and welfare. Regulation 8-245(B) requires the local governing body to approve the request before the Council will consider it, and 8-245(C) provides that proposed local modifications do not take effect until reviewed and approved by the Council. Only an official representative of the jurisdiction or of a professional association may file one at all — a builder or homeowner cannot.
How does the code change in South Carolina, and when is the next one?
Through a statutory procedure with a long clock, and the next implementation date is 1 January 2027. § 6-9-40 requires State Register notice, a comment period of not less than one hundred eighty days, a study committee of at least three people with different technical backgrounds, at least one public meeting, and a Council decision within one hundred eighty days of the end of the comment period; the Council determines whether an amended or modified code becomes effective on the first day of January or of July. Regulation 8-240(A) requires the Council to adopt the latest edition of the nationally recognised codes at least every four years, and the regulations define a building code cycle as the period between implementation dates but no greater than every four years. For the current cycle the Notice of Intent was published in the State Register on 24 January 2025, the comment period ran from 3 February to 4 August 2025, the Council voted on 26 August 2025, the modifications were published in the State Register on 22 May 2026, and the implementation date for local jurisdictions is 1 January 2027. One- and two-family dwellings carry an extra lock on top of all that: § 6-9-55(A) requires any provision or amendment affecting construction requirements for one- or two-family dwellings to be promulgated as a regulation under the Administrative Procedures Act, and provides that it may not be enforced until those regulations are promulgated.
What happens if the code changes while I am building?
Nothing, if the permit was already issued, and South Carolina says so twice. § 6-9-130(A) provides that buildings must be inspected in accordance with the codes in effect for the locality on the date of the issuance of the original building permit, with fallbacks to the application date and then to a director's best-evidence determination where the issuance date cannot be established. Regulation 8-236(B) puts it from the enforcement side: all new construction, additions, renovations, repair or work of any kind for which a completed building permit application has been approved prior to the implementation date will be allowed to be completed and must be inspected under the building codes in effect at the time the original building permit was issued. So a permit pulled in 2026 stays on the 2021 South Carolina codes through to the certificate of occupancy, even though the 2024 codes implement on 1 January 2027. It is worth being deliberate about which side of that date a permit falls on rather than letting it land where it lands, and it is worth keeping the dated permit itself, since it is the document that answers the question.
What is the penalty for building without a permit?
§ 6-9-80 sets it out, and the structure of the section is as important as the numbers. A first violation draws a civil fine of not more than $200. The person must then be given seven calendar days to remedy the violation or to submit a plan of correction before being charged with a second violation. Failure to do so draws a fine not to exceed $2,000, and each day the violation continues is a separate offence — which is where the number gets serious. The section also provides for injunctive relief and mandamus, and it does not reserve those remedies to the jurisdiction: it reaches an action by an adjacent or neighbouring property owner who would be damaged by the violation. Separately, § 6-9-65(D) is worth knowing for anyone assuming the farm-structure route: even a structure that genuinely qualifies as an exempt farm structure does not escape the county's power to require a building permit before construction or improvement. The permit and the code are two different questions, and the exemption from one is not an exemption from the other.
Am I exposed if the person I hire turns out not to be licensed?
In South Carolina, yes, and unusually directly — which is the practical reason to ask for a number rather than a reassurance. § 40-11-200(B) makes it a violation of the general contractor chapter for an awarding authority, owner, contractor or agent to consider a bid, sign a contract, or allow a contractor to begin work unless the bidder or contractor has first obtained the licences required by the chapter, and provides that bids or contracts may not be reconsidered or resubmitted if the contractor was not properly licensed at the time the initial bid or contract was submitted. § 40-11-300(B) requires an entity or individual engaging in construction on a project without the required licence or certificate to withdraw from the project immediately and bars them from acting as a subcontractor on it. And there is a mid-project consequence that surprises people: an unlicensed builder cannot enforce the contract — § 40-59-30(B) bars an unlicensed or unregistered person or firm from filing a mechanics' lien or bringing an action at law or in equity to enforce a residential building contract, notwithstanding § 29-5-10, and § 40-11-370(C) does the same under the general contractor chapter, extending it to a licensed entity that contracted under a name other than the one on its licence. That cuts both ways on a half-finished building. On the permit side, § 40-59-280 requires the building official to refuse a permit unless the applicant furnishes evidence of a licence, registration or exemption, and to report suspected violators to the commission — so the counter is where it usually surfaces.

Sources

Every figure and legal reference on this page traces to a published document. These are those documents, with the date each was read.

  1. 1.S.C. Code of Laws Title 6, Chapter 9, the Building Codes Act, https://www.scstatehouse.gov/code/t06c009.php (served text retrieved and read 5 September 2026) — § 6-9-10(A) (“shall enforce only the national building and safety codes provided in this chapter”), § 6-9-40 (the adoption procedure: State Register notice, a comment period of not less than one hundred eighty days, a study committee, at least one public meeting, and a decision within one hundred eighty days of the end of the comment period), § 6-9-50(A) (the administrative provisions do not apply unless adopted by the municipal or county governing body), § 6-9-55(A) (the Administrative Procedures Act lock on provisions affecting one- and two-family dwellings), § 6-9-63(C) and (E) (the Council’s function on variation requests, the two-thirds vote of members in attendance and the quorum), § 6-9-65(D) (a county may require a permit even for a structure that is an exempt farm structure), § 6-9-80 (the graduated civil penalty, the seven calendar day cure period, the $2,000 second-violation ceiling, each day a separate offence, and the injunctive and mandamus remedies reaching an action by an adjacent or neighbouring property owner), § 6-9-100 (the chapter is cumulative to other local ordinances), § 6-9-105(A) (local variation on grounds of local physical or climatological conditions) and § 6-9-130(A) (the codes in effect on the date the original building permit issued).
  2. 2.S.C. Code of Regulations Chapter 8, the South Carolina Building Codes Council’s regulations, https://www.scstatehouse.gov/coderegs/Chapter%208.pdf (application/pdf, 324,526 bytes, text layer extracted and read 5 September 2026) — the document the Council itself links from its Statutes and Regulations page, https://llr.sc.gov/bcc/statutes.aspx — Regulation 8-236(B), under which work for which a completed building permit application has been approved before the implementation date is completed and inspected under the codes in effect when the original permit issued; 8-236(C); 8-236(D), “The appendices included with all building codes are not intended to be enforced unless specifically referenced in the texts of the codes or specifically included by name and letter designation at the time of adoption by Council”; 8-236(E); 8-215, the definition of a building code cycle; 8-240(A), the requirement to adopt the latest edition at least every four years; and 8-245, the burden of proof on a local modification and its subsections (B) and (C).
  3. 3.South Carolina Building Codes Council, “2021 South Carolina Code Adoptions”, https://www.llr.sc.gov/bcc/pdffiles/SC-Code-Adoption-Notice.pdf (application/pdf, 166,618 bytes, text layer extracted and read 5 September 2026) — “Only the modifications approved and listed on the Council’s website are valid for use in the State. Building code modifications that have not been approved by the Council are invalid and cannot be adopted, employed or enforced by municipalities and counties.”
  4. 4.South Carolina Building Codes Council, “Building Code Adoption”, https://llr.sc.gov/bcc/BCAdoption.aspx (served HTML read 5 September 2026, 31,793 bytes) — the 2021 editions in force, the 2024 editions adopted 26 August 2025 with a local implementation date of 1 January 2027, and the complete list of granted local modifications — and the sole granted local residential modification under the 2021 codes: Greenville County, 2021 International Residential Code Appendix AF, Radon Control Methods, Sections AF101.1 through AF103.12, with the page citing the Council’s meeting minutes of 22 March 2022 and stating that granted modifications may be placed in effect after adoption by local ordinance.
  5. 5.South Carolina Building Codes Council, “Code Adoption Process”, https://llr.sc.gov/bcc/adoptionprocess.aspx (served HTML read 5 September 2026) — modifications may be granted on a local or statewide basis as provided in Regulation 8-240, each request must be submitted separately on a Council-approved form with documentation of the local physical or climatological need, and only an official representative of the local jurisdiction or of the proposing professional association may file one.
  6. 6.South Carolina Building Codes Council, “2024 Final Modification Index”, https://llr.sc.gov/bcc/PDFfiles/2024%20Final%20Modification%20Index%20with%20Hyperlinks.pdf (application/pdf, 4,418,838 bytes, text layer extracted and read 5 September 2026) — the 2024-cycle modifications, the 26 August 2025 adoption and the 1 January 2027 implementation date — the current cycle: Notice of Intent published in the State Register on 24 January 2025, a comment period running 3 February to 4 August 2025, a Council vote on 26 August 2025, modifications published in the State Register on 22 May 2026, and a local implementation date of 1 January 2027.
  7. 7.South Carolina Building Codes Council, “Building Codes in Effect for South Carolina”, https://llr.sc.gov/BCC/PDFfiles/Building%20Codes%20in%20Effect%20for%20South%20Carolina%20Final.pdf (application/pdf, 185,673 bytes, text layer extracted and read 5 September 2026) — the editions currently in force and their implementation dates.
  8. 8.South Carolina Building Codes Council, 2021 Code Modifications, published in the South Carolina State Register Vol. 46, Issue 5, 27 May 2022 and codified as the Regulation 8-1200 series, https://llr.sc.gov/bcc/PDFfiles/2021-Code-Modifications.pdf (application/pdf, 509,626 bytes, text layer extracted and read 5 September 2026) — the complete South Carolina modification set for the 2021 residential code, which is what “approved and listed on the Council’s website” amounts to in practice.
  9. 9.S.C. Code of Laws Title 40, Chapter 11, Contractors, https://www.scstatehouse.gov/code/t40c011.php (served text retrieved and read 5 September 2026) — § 40-11-200(B), which makes it a violation for an awarding authority, owner, contractor or agent to consider a bid, sign a contract or allow a contractor to begin work without the required licences, and bars reconsideration or resubmission of a bid or contract submitted while unlicensed; § 40-11-300(B), the immediate-withdrawal requirement and the bar on acting as a subcontractor on the same project; § 40-11-370(C), which bars an unlicensed entity from enforcing the contract and extends that to a licensed entity contracting under a name other than the one on its licence; and § 40-11-420(C), which puts the permit in an exempt owner’s own name and requires the application to list the name and licence number of every licensed contractor performing work on the project.
  10. 10.S.C. Code of Laws Title 40, Chapter 59, Residential Builders, https://www.scstatehouse.gov/code/t40c059.php (served text retrieved and read 5 September 2026) — § 40-59-30(B), which bars an unlicensed or unregistered person or firm from filing a mechanics’ lien or bringing an action at law or in equity to enforce a residential building contract, notwithstanding § 29-5-10; and § 40-59-280, the building official’s duty to refuse a permit absent evidence of a licence, a registration or an exemption, and to report suspected violators to the commission.

Keep reading

The pages that answer the next question this one raises.

Is It Legal in South Carolina?

One statewide code, and why § 6-9-65's farm-structure exemption can never reach a residence.

Read it

How Long Does It Take?

Why the permit procedure itself is set by local ordinance here, even though the construction standard is not.

Read it

Where We Build

Which authority actually reviews your parcel, city by city.

Read it

Ready to put permitting & engineering against a real plan? Start there and the rest follows.

Start your project

Tell us about the land

Send the parcel ID or an address and we will come back with what can be built on it, the wind load it has to meet, and a realistic budget range. That conversation costs nothing.

Start your project