Bolthole Index

Williamsburg County, South Carolina

Building permits, zoning and septic rules in Williamsburg County, South Carolina

69Index Score / 100
#2 of 46 in South Carolina

Unincorporated Williamsburg County, South Carolina requires residential building permits and sequential inspections through county Code Enforcement12. Rural land follows county Land Development Regulations, while incorporated towns have separate approval processes34. For a home or manufactured home without public or community sewer, SCDES septic approval and a Permit to Construct must come before the county building permit5.

At a glance

Building permit
Required for residential construction through Williamsburg County Code Enforcement1
Zoning
No comprehensive countywide zoning ordinance confirmed; rural land follows county Land Development Regulations63
Septic permits
Obtain SCDES approval and a Permit to Construct before the county building permit if public or community sewer is unavailable7
Owner-builder
Available for a qualifying owner-occupied family residence, with personal supervision, licensed contractors where required and recorded notice8
Building code
The 2021 South Carolina Building Codes apply now; the 2024 editions take effect January 1, 2027910
Private well
A Notice of Intent is required before construction; the residential-well fee is $7011
RV and tiny homes
General private-land occupancy is unconfirmed; campground and RV-park tiny homes must meet residential code312
Subdivision
Planning Commission approval is required before recording a division into two or more lots in unincorporated areas13

Who to call

Building permits

Williamsburg County Code Enforcement (Building Codes Department)

Building permit applications, plan review and residential inspections for Williamsburg County

843-355-9321, ext. 5300

201 W Main Street, Suite 121, Kingstree, SC 29556

Septic permits

South Carolina Department of Environmental Services (SCDES)

Site evaluation, onsite wastewater applications, septic permits and final inspections statewide, including Williamsburg County

(803) 898-3432

info@des.sc.gov

2600 Bull St., Columbia, SC 29201

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Williamsburg County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Williamsburg County, South Carolina?

Yes. Unincorporated Williamsburg County requires a building permit and sequential inspections for residential construction; approved plans must remain on site and the permit must stay posted114. Residential plans for one- and two-family dwellings, additions and attached garages must follow the current residential code, and the application must include two sets of construction plans and site plans15. The county enforces South Carolina's adopted building codes, and plans outside those codes' scope require a South Carolina-licensed design professional16. A qualifying owner may build a residence for the owner's sole occupancy or family, but must personally apply for the building permit and supervise construction, use licensed contractors where required, and record notice as an unlicensed builder8. Sale or rent within two years is evidence that the project did not qualify unless the commission approves otherwise8. Commercial projects require special inspections for rebar, concrete and structural steel17.

Who is the Williamsburg County building department, and how do you reach it?

Williamsburg County Code Enforcement handles building inspections for new residential and commercial construction and manufactured-home installation in unincorporated areas2. The office is at 201 W Main Street, Suite 121, Kingstree, SC 29556; call 843-355-9321, extension 530018. Inside Greeleyville, the town handles building permits and also requires local sewer or septic connection approval; state septic approval still applies1920. Andrews, which reaches into Williamsburg County but lies mainly in Georgetown County, has its own building-permit rules, including a qualifying owner-work exemption; septic tanks require state approval and cannot be newly approved where sewer lines are provided2122. The county publishes construction applications, residential and commercial plan requirements, and a building-permit fee schedule; ask Code Enforcement for the detailed inspection list for each discipline2324. Residential requirements call for 24 hours’ inspection notice, but the sequential-inspection page says at least 48 hours; confirm scheduling with Code Enforcement2514.

Does Williamsburg County have zoning?

Williamsburg County's ordinance list does not show a comprehensive ordinance establishing countywide zoning districts, but that does not make rural land unrestricted6. Unincorporated property follows county Land Development Regulations; ask Kingstree or Hemingway about additional requirements inside their town limits3. Andrews, a town mainly in Georgetown County that reaches into Williamsburg County, sets its own zoning; state septic approval remains required there, and new septic tanks are prohibited where sewer lines are provided2622. Dividing unincorporated land into two or more lots for sale, building or development requires Planning Commission approval before recording13. In those subdivisions, a lot with a well and septic tank must have at least one acre; a lot with public water and septic must have at least 25,000 square feet; and a residential lot with public water and sewer must be at least 60 feet wide and 6,000 square feet27. Subdivision plans must show setback lines, but the cited rule gives no numeric setback28. Ask Code Enforcement about standards outside a subdivision and the applicable town about municipal zoning approval184.

How do septic permits work in Williamsburg County?

For a Williamsburg County home or manufactured home without public or community sewer, obtain SCDES approval and a Permit to Construct before the county building permit5. Submit the onsite wastewater application online through the ePermitting Portal with a plat or deed and the $150 fee; traditional permitting includes a site visit29. The Permit to Construct lasts five years; renewal or changes require a new application and fee30. Only about 2% of county soils lack severe limitations for a conventional drain field, so make septic feasibility a purchase contingency31. A licensed installer must install the system and schedule SCDES inspection before covering it5. If the inspector does not arrive within 30 minutes of the scheduled time, a licensed installer may self-inspect and submit the approved final-inspection form32. For subdivision lots without accessible or planned public services, alternate water supply or sewage disposal needs written health-officer approval, and septic lots must reserve space for a replacement system3334.

Can you live in an RV or tiny home on your land in Williamsburg County?

We could not confirm a general Williamsburg County rule authorizing long-term RV living or tiny-home occupancy on private land. In an unincorporated campground or recreational vehicle park, every associated structure needs a county building permit and inspection, cabins and tiny homes must meet residential building-code standards, and utility buildings cannot be occupied12. That campground rule does not answer occupancy elsewhere. Unincorporated parcels still follow Land Development Regulations, and land inside Kingstree, Hemingway or Andrews may face additional municipal requirements3. Before placing an RV or tiny home, give Code Enforcement the parcel number and ask about building permits, occupancy and sanitation; inside a town, also ask the town about zoning approval184.

What are the steps to build a home in Williamsburg County?

  1. Give Code Enforcement the parcel and confirm whether the county or an incorporated town issues the building permit and zoning approval; SCDES handles any needed septic permit43518.
  1. If dividing the tract, obtain Planning Commission approval before recording, and verify the utility-based lot-size and setback-plan requirements362728.
  1. If septic is needed, submit the onsite wastewater application, plat or deed and $150 fee to SCDES, then obtain the Permit to Construct5.
  1. For a private residential well, submit the Notice of Intent and $70 fee before construction; the driller must give SCDES 48 hours' notice before installation11.
  1. Submit two sets of construction plans and site plans; construction in an A or AE flood zone also requires a Flood Elevation Certificate1537.
  1. Post the building permit, keep approved plans on site and confirm the inspection lead time with Code Enforcement because county sources give both 24 and 48 hours2514.
  1. Schedule the SCDES septic inspection before covering the system, then complete the county certificate-of-occupancy inspection3238.

What should you check before buying land in Williamsburg County?

Start with septic: only about 2% of Williamsburg County soils lack severe limitations for a conventional drain field, so obtain a site evaluation before treating a tract as buildable31. For a proposed subdivision, confirm whether the water-and-sewer combination triggers the one-acre, 25,000-square-foot, or 6,000-square-foot minimum, and leave room for a replacement septic system where applicable2734. If no public water is available, budget for the residential-well Notice of Intent and $70 fee before drilling11. Check the flood map because construction or development in A and AE zones requires a Flood Elevation Certificate37. The elevation certificate does not establish that all floodplain requirements have been met; ask Code Enforcement what else the parcel needs3718. Ask the road authority about driveway approval because we could not confirm a countywide rule. Confirm whether the parcel is unincorporated: towns have separate approval processes, and SCDES approval remains necessary for a home without public or community sewer47.

Watch-outs

  • SCDES approval and a septic Permit to Construct must precede the county building permit for a home or manufactured home without public or community sewer5.
  • Williamsburg County's rural Land Development Regulations and any applicable city rules still matter even though no comprehensive countywide zoning ordinance was confirmed36.
  • Campground and RV-park tiny homes in unincorporated Williamsburg County must meet residential building-code standards, but general private-land RV and tiny-home occupancy remains unconfirmed12.

Sources

  1. Sequential Listing of Inspection Types, quoted and re-checked
  2. Inspections, Permits & Applications, quoted and re-checked
  3. williamsburgcounty.sc.gov, quoted and re-checked
  4. Business Services, quoted and re-checked
  5. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  6. Williamsburg County, SC - Ordinances (2026 county census)
  7. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  8. South Carolina Code Title 40, Chapter 59, quoted and re-checked
  9. Building Code Adoption (South Carolina statewide rule), quoted and re-checked
  10. 2024 Building Code Modification Index (South Carolina statewide rule), quoted and re-checked
  11. Private Drinking Water Wells, quoted and re-checked
  12. Ordinance No. 2023-13 Recreational Vehicle Parks and Campgrounds, quoted and re-checked
  13. Land Development Regulations, quoted and re-checked
  14. Sequential Listing of Inspection Types, quoted and re-checked
  15. Williamsburg County 1&2 Family Dwelling Requirements / Plan Submittal Guidelines, quoted and re-checked
  16. Building Codes & Plans Preparation, quoted and re-checked
  17. Building Codes & Plans Preparation, quoted and re-checked
  18. Williamsburg County Code Enforcement (Building Codes Department) (williamsburgcounty.sc.gov)
  19. Town of Greeleyville: Greeleyville Code § 8-28, Building permit (Williamsburg County), quoted and re-checked
  20. Town of Greeleyville: Greeleyville Code § 28-31, Sewer connections required when provided (Williamsburg County), quoted and re-checked
  21. Town of Andrews: Code of Ordinances: Sec. 8-5. Exemption from building permit requirement (Williamsburg County), quoted and re-checked
  22. Town of Andrews: Code of Ordinances: Sec. 40-47. Septic tanks; when permitted (Williamsburg County), quoted and re-checked
  23. Inspections, Permits & Applications, quoted and re-checked
  24. Inspections, Permits & Applications, quoted and re-checked
  25. Williamsburg County 1&2 Family Dwelling Requirements / Plan Submittal Guidelines, quoted and re-checked
  26. Town of Andrews: Code of Ordinances: Sec. 4-142. Location restrictions (Williamsburg County), quoted and re-checked
  27. williamsburgcounty.sc.gov, quoted and re-checked
  28. Code Enforcement, quoted and re-checked
  29. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  30. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  31. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  32. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  33. williamsburgcounty.sc.gov, quoted and re-checked
  34. williamsburgcounty.sc.gov, quoted and re-checked
  35. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  36. Land Development Regulations, quoted and re-checked
  37. Inspections, Permits & Applications, quoted and re-checked
  38. Sequential Listing of Inspection Types, quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Unlike all 6 of its neighbors, Williamsburg County has no countywide zoning.

RuleWilliamsburg CountyGeorgetown CountyFlorence CountyClarendon CountyMarion CountyBerkeley CountySumter County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningNoYesYesYesYesYesYes
Septic permitsSCDESSC Dept. of Env. ServicesSCDESSC DESSCDESSCDESSC DES

County locator

Williamsburg County in South Carolina

69
County map
Williamsburg County highlighted among the South Carolina counties · colored by Index score

How Williamsburg County scores

Seclusion56100% ev.
Self-Sufficiency64100% ev.
Admin Boringness60100% ev.
Durability52100% ev.
Property Autonomy46100% ev.
Carry Cost87100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$124kTypical home
0.7%Property tax
$2,941Land / acre
50.1"Annual rain
2.5% of yrsSevere drought
9.7 / yr (+8.3)Mid-century 100°F days
13.8 daysMid-century dry spell
2.29" (+4.6%)Mid-century 1-day rain
1.26×Wildfire change factor
100%Forward climate coverage
$1,714Home insurance / yr
-0.2% / yrInsurance growth
1.52%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
27,264People within 30 min
2,469,636People within 2 hr
34,848Radius comparison (15 mi)
32People / sq mi
0.8%Federal land
100%Land at 15% slope or less
2%Soils rated "not limited" for septic (strict USDA rating)
12,080 acWorkable land screen
74.2%Wooded land
45.5 tonsBiomass / forest ac
64.4°FAvg temp

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Cities and towns in Williamsburg County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Not yet researched: Town of Hemingway · Town of Lane · Town of Stuckey

Answers from the rulebook for Williamsburg County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Williamsburg County rules

  • Building permitRequired

    Residential building construction subject to the county inspection sequence.

    • The county states that permits must be posted for the job duration.
    • Permit application and cost information is obtained through the Code Enforcement Office.
    • Requirements may differ in incorporated municipalities.
    “The following is a listing of the inspections to be performed when building residential occupancies in Williamsburg County. This listing is sequential. Williamsburg County approved plans shall be on-site for review during the inspection process. Permits shall be posted for the job duration.”
  • Building code adoptedAdopted (with conditions)

    County Code Enforcement jurisdiction.

    • The page states that the county enforces the latest South Carolina State adopted versions of the listed codes.
    • Residential plans beyond the scope of adopted codes and commercial occupancy require a South Carolina licensed design professional.
    “Williamsburg County enforces the latest South Carolina State adopted versions of the:”
  • InspectionsRequired

    Residential occupancies built in Williamsburg County, including the sequential inspections identified in the county's residential construction requirements.

    • The county requires 24 hours' notice to perform an inspection.
    • The inspection request must include the address, tax map number or permit number, type of inspection, contractor name, and contact phone number.
    • The listing of inspections is sequential.
    • Williamsburg County approved plans must be on-site during the inspection process.
    • Permits must be posted for the job duration.

    inspection notice: 24 hours

    “Williamsburg County requires a 24 hour notice to perform an inspection.”
    3 more reviewed findings on this topic
    • Required — Residential construction inspections in Williamsburg County Code Enforcement jurisdiction.
      “The following is a listing of the inspections to be performed when building residential occupancies in Williamsburg County. This listing is sequential.”
    • Required — Residential occupancies and new residential or commercial construction in unincorporated Williamsburg County.
      “Code Enforcement has provided a sequential listing of the inspections to be performed when building residential occupancies in Williamsburg County.”
    • Limited — Commercial projects in Williamsburg County requiring special inspections for rebar, concrete, and structural steel.
      “Required Special Inspections for rebar, concrete, and structural steel for commercial projects”
  • Certificate of occupancyRequired

    Residential occupancy final inspection and certificate-of-occupancy process in Williamsburg County.

    • The county calls the final inspection the C.O. inspection.
    • All construction must be complete and electrical, mechanical, plumbing, and building contractors must have completed their contractual obligations.
    • Paint, carpet, and vinyl flooring are exceptions to the completion requirement.
    “Commonly referred to as the C.O. inspection (certificate of occupancy). All construction is complete. Electrical, mechanical, plumbing and building contractors are complete in their contractual obligations. Exception: cosmetic applications are not required to be complete prior to final inspection.”
  • Local zoningVaries (with conditions)

    Aggregate of incorporated-town and unincorporated-area land-use administration within Williamsburg County.

    • Each town has its own process for permits.
    • The county Code Enforcement coverage area is the unincorporated area outside town limits.
    • The county page identifies a zoning application and inspection process for the Town of Kingstree.
    “Each town in Williamsburg County has its own process for acquiring business licenses and permits. Williamsburg County has a separate process as well.”
    One more reviewed finding on this topic
    • Varies (with conditions) — Aggregate local land-use controls across rural county areas and the incorporated cities of Kingstree, Hemingway, and Andrews; the county does not administer each municipal requirement.
      “All requirements for property in the rural areas of the county are found in the Land Development Regulations book, which can be obtained from the Code Enforcement Office in the Public Service Administration Building (Suite 121), located at 201 W Main Street in Kingstree. Additional Requirements For properties within the City Limits of Kingstree, Hemingway or Andrews consult with the respective city for any additional requirements such as: Cul-de-sac radius Lot size Set backs Street widths, etc.”
  • Minimum lot sizeSpecified

    Residential subdivision lots in unincorporated Williamsburg County under the county Land Development Regulations.

    • Where public water and/or sewer is not reasonably accessible, lots must meet all public-health minimum requirements.
    • Lots using a well and septic tank must be at least one acre.
    • Lots with public water and a septic tank must be at least 25,000 square feet.
    • Residential lots served by public water and sewer must be at least 60 feet wide and at least 6,000 square feet in area.
    • The county states that its Land Development Regulations govern subdivision of land within unincorporated areas.

    minimum lot size with well and septic tank: >= 1 acre · minimum lot size with public water and septic tank: >= 25000 square feet · minimum lot width with public water and sewer: >= 60 feet · minimum lot area with public water and sewer: >= 6000 square feet

    “Residential lots served by public water and sewer shall not be less than sixty (60) feet wide”
  • SetbacksSpecified

    Building setback-line documentation and corner-lot side-yard requirements in subdivisions governed by the Williamsburg County Land Development Regulations.

    • The regulation requires setback lines to be shown on subdivision plans but the cited provision does not state a numeric setback distance.
    • Corner lots must be sufficiently wider and larger to permit additional side-yard requirements for a safe setback from intersecting streets.
    • The Land Development Regulations govern subdivision of land within unincorporated Williamsburg County.

    minimum setback-line documentation: Required on subdivision plans

    “Building setback lines accurately shown with dimensions;”
  • Tiny homesLimited

    Cabins and tiny homes associated with campgrounds or recreational vehicle parks in unincorporated Williamsburg County.

    • All structures and construction associated with campgrounds or recreational vehicle parks must be permitted and inspected by the Williamsburg County Building Code Department.
    • Cabins and tiny homes must be built to the Residential building code standard.
    • Utility buildings are not constructed to either the Residential building code standard or the other applicable standard and are not permitted for occupancy.
    • The county code-enforcement department's coverage area is the unincorporated areas of Williamsburg County.
    “ORDINANCE 2023-13, AN ORDINANCE TO ESTABLISHING RULES AND REGULATIONS FOR RECREATIONAL VEHICLE PARKS AND CAMPGROUNDS WITHIN THE UNINCORPORATED AREAS OF WILLIAMSBURG COUNTY TO PROMOTE THE PUBLIC HEALTH, SAFETY AND GENERAL WELFARE OF THE CITIZENS OF WILLIAMSBURG COUNTY. [...] 4.3 Structures: All structures and construction associated with Campgrounds or Recreational Vehicle Parks must be permitted and inspected by the Williamsburg County Building Code Department. Cabins and/or Tiny Homes must be built to the Residential building code standard. Utility buildings are not constructed to either standard and are not permitted for occupancy.”
  • Off-grid sanitationLimited

    Alternate water-supply or sewerage-disposal methods for subdivision lots where public services are unavailable or not planned.

    • The alternate method must be approved in writing by the appropriate health officer.
    • Septic lots must accommodate both the initial system and a reserved replacement system.
    “Where water and/or sewer services are not reasonably accessible, or not planned for in the future, and alternate method of water supply or sewerage disposal may be indicated and shall be approved in writing by the appropriate health officer.”
  • Mandatory utility hookupConditional

    Subdivision lots in Williamsburg County where public water or sewer service is or is not reasonably accessible.

    • Where water and/or sewer services are not reasonably accessible or not planned for in the future, an alternate water-supply or sewerage-disposal method may be indicated.
    • The alternate method must be approved in writing by the appropriate health officer.
    • Lots served by septic tanks must be large enough for the septic system and a reserved replacement system.
    “Where water and/or sewer services are not reasonably accessible, or not planned for in the future, and alternate method of water supply or sewerage disposal may be indicated and shall be approved in writing by the appropriate health officer. Lots proposed to be served by septic tanks shall be of sufficient size to accommodate the septic system and a reserved replacement system should the original system fail.”
  • Subdividing landRegulated (with conditions)

    Division or re-subdivision of land in unincorporated Williamsburg County into two or more lots for immediate or future sale, building, or development.

    • A proposed subdivision plan must be submitted to the Williamsburg County Planning Commission for approval.
    • Approval must be obtained before filing the subdivision with the Williamsburg County Clerk of Court.
    • A plat in the unincorporated area may not be filed or recorded without Planning Commission approval.
    • A preliminary plat must be submitted before street improvements or utility installation.
    • The preliminary-plat filing fee is $10 per residential lot or agricultural tract and $25 per acre for non-residential lots.
    • The Planning Commission reviews and acts on the preliminary plat within 60 working days; the subdivider may waive the requirement and consent to an extension.
    • For parent tracts less than five acres, surveyed boundaries of the parent tract must also be displayed.
    • Lots proposed to be served by septic tanks must be large enough for the septic system and a reserved replacement system.

    minimum lots triggering subdivision approval requirement: >= 2 lots (Applies to division for immediate or future sale, building, or development, including re-subdivision.) · residential or agricultural preliminary-plat filing fee: 10 USD per lot or tract · non-residential preliminary-plat filing fee: 25 USD per acre · preliminary-plat review period: 60 working days (The subdivider may waive the requirement and consent to an extension.) · parent-tract survey threshold: < 5 acres (Surveyed parent-tract boundaries must be displayed in addition to the subdivided lots.)

    “AN ORDINANCE GOVERNING THE SUBDIVISION OF LAND WITHIN UNINCORPORATED AREAS OF WILLIAMSBURG COUNTY, SOUTH CAROLINA”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Division of land into two or more lots in unincorporated Williamsburg County.
      “Any owner(s) of land situated within the unincorporated area of Williamsburg County who intends to divide such land into two or more lots for the purpose of either immediate or future sale, building or development, or intends to re-subdivide for this purpose, shall submit a plan of such proposed subdivision to the Williamsburg County Planning Commission for approval and shall obtain such approval prior to the filing of the subdivision of land with the Williamsburg County Clerk of Court.”
  • Building in a floodplainRequired

    Building and development in county flood zones A and AE.

    • A Flood Elevation Certificate is needed for A and AE zones.
    • The source does not establish that the certificate is the only floodplain requirement.
    “A Flood Elevation Certificate is needed for "A" and "AE" zones.”
    One more reviewed finding on this topic
    • Required — Construction or development in county-designated A and AE flood zones in unincorporated Williamsburg County.
      “A Flood Elevation Certificate is needed for "A" and "AE" zones.”
  • Permit feesPublished

    Building permit fees administered by Williamsburg County Code Enforcement.

    • The county page identifies a Building Permit Fee Schedule among the supplemental documents.
    • The reviewed source does not provide the fee amounts in the page text.
    “Supplemental Related Documents Building Permit Fee Schedule (PDF) Farm Structure Building Permit Affidavit Compliance with International Residential Code Memo”
  • Permit processPublished (with conditions)

    Residential 1- and 2-family dwellings, including additions and attached garages, in Williamsburg County.

    • All residential plans, including additions and attached garages, must be designed to the current edition of the International Residential Code.
    • Plans must be drawn clearly and concisely to engineer's scale; otherwise they must be drawn by a draftsman or engineer.
    • There are no exceptions to this design requirement.
    • Two sets of construction plans and site plans must be submitted with the required information; failure to do so results in rejection.
    • The county requires 24 hours' notice for inspections.
    • Homeowners obtaining their own construction permits may use family members, but not friends, to aid in construction.
    • A person entering into a contract with the homeowner must be licensed for the full dollar amount of the contract; a specialty contractor is licensed only up to $5,000.

    inspection notice: 24 hours · specialty contractor contract limit: <= 5000 USD

    “You will need to submit two sets of construction plans and site plans”
    2 more reviewed findings on this topic
    • Partial — County building-permit and inspection process for construction in unincorporated Williamsburg County.
      “Commercial Plan Submittal Requirements (PDF) [...] Residential Plan Requirements (PDF) [...] Application for Construction”
    • Partial — County building-permit and inspection process.
      “Code Enforcement has provided a sequential listing of the inspections to be performed when building residential occupancies in Williamsburg County.”
  • County-wide zoningAbsent

    The county's ordinance list includes Land Development (subdivision) Regulations, flood, and building/fire codes but no comprehensive zoning ordinance establishing countywide zoning districts.

    Williamsburg County, SC - Ordinances ↗Scouted from the county site, not yet independently re-checked

South Carolina rules that apply here

  • Owner-builder exemptionConditional

    An owner of residential property who builds or improves structures or appurtenances for the owner’s or family’s sole occupancy, statewide in South Carolina.

    • The owner must do the work personally, with the owner’s own employees, or with licensed contractors or registered entities or individuals.
    • The structure or improvements must be intended for the owner’s sole occupancy or occupancy by the owner’s family and must not be intended for sale or rent.
    • The general public must not have access to the structure.
    • The owner must personally appear and sign the building permit application.
    • The owner must supervise construction and may build or improve a one-family or two-family residence.
    • The owner may not hire an unlicensed person as a residential builder or specialty contractor.
    • Construction must comply with all applicable laws, ordinances, building codes, and zoning regulations.
    • If the owner sells or rents the building within two years after construction is complete, the law presumes it was built for sale or rent unless otherwise approved by the commission.
    • The owner must promptly file a public notice with the register of deeds stating that the residential building or structure was constructed by the owner as an unlicensed builder; failure to do so revokes the statutory exemption.
    • The exemption does not authorize hiring a person or entity that is not licensed or registered under the Residential Home Builders Act.

    sale-or-rent presumption period: 2 years after construction is complete (unless otherwise approved by the commission)

    “This chapter does not apply to an owner of residential property who improves the property or who builds or improves structures or appurtenances on the property if: (1) the owner does the work himself, with his own employees, or with licensed contractors or registered entities or individuals; (2) the structure, group of structures, or appurtenances, including the improvements, are intended for the owner's sole occupancy or occupancy by the owner's family and are not intended for sale or rent; and (3) the general public does not have access to this structure.”
    2 more reviewed findings on this topic
    • Conditional — Owner-builders constructing or improving residential property in South Carolina, including Williamsburg County.
      “To qualify for exemption under this section, an owner must personally appear and sign the building permit application.”
    • Conditional — An owner-builder improving residential property or building or improving structures or appurtenances on that property for the owner's or the owner's family's occupancy.
      “This chapter does not apply to an owner of residential property who improves the property or who builds or improves structures or appurtenances on the property if:”
  • Who permits septicState (with conditions)

    Residential homes or manufactured homes in Williamsburg County on property not served by a public or community sewer system.

    • SCDES approval and a permit to install a septic system must be obtained before the county can issue a building permit.
    • The application fee is $150.
    • The application is submitted online through the ePermitting Portal using the Onsite Wastewater System Application (D-1740), with a copy of the property's plat or deed.
    • Under the traditional permitting method, a site visit is required.
    • If the site is approved for a traditional septic system, SCDES issues a Permit to Construct.
    • The Permit to Construct is valid for five years; renewal or modifications require a new application and payment of the fee.
    • Before the septic installation is covered, the installer must contact SCDES to schedule an inspection; if an SCDES inspector does not arrive within 30 minutes, a licensed installer may proceed with self-inspection and must provide D-4432 documentation.

    application fee: 150 USD · Permit to Construct validity: 5 years · inspector arrival period before optional self-inspection: 30 minutes (A licensed installer has the option to proceed with self-inspection if an SCDES inspector does not arrive within this period.)

    “South Carolina law requires site approvals and permits for all septic systems.”
    3 more reviewed findings on this topic
    • State (with conditions) — Residential onsite wastewater permitting affecting Williamsburg County.
      “If you are planning to build a home or place a manufactured home on property not served by a public or community sewer system, you must first obtain SCDES's approval and a permit to install a septic system.”
    • State (with conditions) — Residential septic-system permitting and inspection in Williamsburg County.
      “you must first obtain SCDES's approval and a permit to install a septic system.”
    • State — Statewide permitting and administration of individual onsite wastewater and septic systems in South Carolina.
      “South Carolina law requires site approvals and permits for all septic systems. If you are planning to build a home or place a manufactured home on property not served by a public or community sewer system, you must first obtain SCDES's approval and a permit to install a septic system.”
  • Septic permitRequired

    Construction of a home or placement of a manufactured home in Williamsburg County on property not served by a public or community sewer system.

    • SCDES approval and a permit to install the septic system are required before the county can issue a building permit.
    • The application is submitted online through the ePermitting Portal using the Onsite Wastewater System Application (D-1740), with a copy of the property plat or deed.
    • The application fee is $150.
    • Under the traditional permitting method, SCDES requires a site visit and evaluates site suitability; if approved, SCDES issues a Permit to Construct.
    • A licensed onsite wastewater system installer must install the system.
    • Before the system is covered, the installer must schedule a final inspection with SCDES. If the inspector does not arrive within 30 minutes of the scheduled time, a licensed installer may self-inspect using SCDES form D-4432.
    • Permits to Construct are valid for five years; renewal or modifications require a new application and payment of the fee.
    • Williamsburg County's official permit page directs applicants to the South Carolina state environmental agency for septic tank permits.
    • The official SCDES regional-office list assigns Williamsburg County to Pee Dee EA - Myrtle Beach, 927 Shine Avenue, Myrtle Beach, SC 29577, telephone (843) 238-4378.

    application fee: 150 USD · Permit to Construct validity: 5 years (Renewal or modifications require a new application and payment of the fee.) · self-inspection delay threshold: > 30 minutes (The licensed installer must use the SCDES-approved D-4432 Final Inspection form.)

    “If you are planning to build a home or place a manufactured home on property not served by a public or community sewer system, you must first obtain SCDES's approval and a permit to install a septic system. Without this permit, your county will not be able to issue you a building permit.”
    3 more reviewed findings on this topic
    • Required — Homes and manufactured homes on property in Williamsburg County without public or community sewer.
      “South Carolina law requires site approvals and permits for all septic systems.”
    • Required — A septic system for a home or manufactured home on property in Williamsburg County not served by public or community sewer.
      “Permits to Construct are good for five years. To renew your permit after five years or to make changes to it once approved, you will need to complete a new application and pay the fee again.”
    • Required — Construction of a home or placement of a manufactured home on property not served by a public or community sewer system.
      “If you are planning to build a home or place a manufactured home on property not served by a public or community sewer system, you must first obtain SCDES's approval and a permit to install a septic system. Without this permit, your county will not be able to issue you a building permit.”
  • Septic inspectionRequired

    Installation inspection of a septic system in Williamsburg County.

    • The installer must contact SCDES before the system is covered to schedule inspection.
    • If an SCDES inspector does not arrive within 30 minutes of the scheduled time, a licensed installer may self-inspect.
    • Self-inspection documentation must be submitted on the SCDES-approved Final Inspection form D-4432.

    self-inspection waiting period: 30 minutes (licensed installer may proceed if an SCDES inspector does not arrive)

    “the installer must contact SCDES to schedule a time for the inspection of the septic system before it is covered.”
    2 more reviewed findings on this topic
    • Required — Septic-system installation in Williamsburg County.
      “Before completing the installation of the septic system, the installer must contact SCDES to schedule a time for the inspection of the septic system before it is covered.”
    • Limited — Existing septic systems and new-home construction using a septic system statewide in South Carolina.
      “While S.C. law does not require property owners to have existing systems inspected, some towns have passed ordinances that require their local residents to have their septic systems inspected regularly (See next question). If you live in an area that does not have a local inspection ordinance in place, the only time you would be required to have your septic system inspected is when you're building a new home that will use a septic system.”
  • Well permitRequired

    Construction of individual residential wells and irrigation wells statewide in South Carolina.

    • Before construction, the owner, owner's agent, or well driller must submit a Notice of Intent for coverage under the General Permit.
    • A $70 fee applies to each individual residential well and a $50 fee applies to each irrigation well.
    • The Department reviews a completed NOI within 48 hours.
    • The driller must notify SCDES 48 hours before installation with the exact date, time, and location.
    • The permit does not authorize public water-supply wells or wells prohibited by another regulation, local ordinance, or law.
    • Wells serving multiple households or a small business follow public-water-supply permitting procedures.
    • Withdrawals exceeding 3 million gallons in any month require a Groundwater Withdrawal Permit.

    individual residential well NOI fee: 70 USD · irrigation well NOI fee: 50 USD · NOI review period: 48 hours (The General Permit states the period excludes weekends and legal state holidays.) · installation notice: 48 hours (Notice must provide exact date, time, and location.) · monthly withdrawal threshold: > 3000000 gallons (A Groundwater Withdrawal Permit is required under R.61-113.)

    “Prior to construction of any individual residential well or irrigation well, a Notice of Intent (NOI) to obtain coverage under the General Permit is submitted by the well owner, agent of the well owner, or well driller.”
    One more reviewed finding on this topic
    • Required — Individual residential and irrigation wells in Williamsburg County.
      “Prior to construction of any individual residential well or irrigation well, a Notice of Intent (NOI) to obtain coverage under the General Permit is submitted by the well owner, agent of the well owner, or well driller.”
  • Agricultural exemptionConditional

    Exemption from the federal Produce Safety Rule administered through the South Carolina Department of Agriculture for qualifying growers.

    • The grower must meet an exemption category and submit an application to SCDA.
    • The application requires information about the operation and certification of compliance; SCDA then issues a certificate of exemption.
    • Recognized categories include produce rarely consumed raw; produce for personal or on-farm consumption; produce receiving qualifying commercial processing; and average produce sales below $25,000 over the previous three years, adjusted for inflation.
    • A qualified exemption requires annual food sales below $500,000 adjusted for inflation and more than 50% of annual food sales to qualified end-users located in South Carolina, the same Indian Reservation, or within 275 miles of the farm.

    previous three-year average produce sales threshold: < 25000 USD (Adjusted for inflation using 2018 as the baseline year.) · previous three-year annual food sales threshold for qualified exemption: < 500000 USD (Adjusted for inflation.) · sales to qualified end-users: > 50 percent (Qualified end-users must be in South Carolina, the same Indian Reservation, or within 275 miles of the farm.)

    “In South Carolina, if a grower meets the requirements for an exemption they must submit an application to secure that exemption.”
    2 more reviewed findings on this topic
    • Available (with conditions) — Construction or improvement of qualifying farm structures in South Carolina.
      “may not enforce that portion of a nationally recognized building code which regulates the construction or improvement of a farm structure.”
    • Available (with conditions) — Construction or improvement of qualifying farm structures in South Carolina, other than residences or structures attached to residences.
      “may not enforce that portion of a nationally recognized building code which regulates the construction or improvement of a farm structure.”
  • Driveway accessLimited

    Residential driveway entrances within the right-of-way of South Carolina state highways.

    • The driveway must provide ingress and egress to abutting property.
    • Access must not constitute hazardous conditions.
    • The property must be an existing developed residential property or property being developed for the owner's personal use.
    • Commercial, speculative, and resale purposes are excluded.
    • A standard driveway has a maximum paved throat width of 16 feet and may include up to a 30-inch diameter pipe where required for drainage.
    • Additional paved width or a larger pipe is discretionary and excess installation cost may be charged to the property owner.
    • Additional driveways require approval and may be constructed at the owner's expense.
    • The directive is effective December 6, 2024.

    maximum paved throat width: <= 16 feet (standard driveway) · maximum drainage pipe diameter: <= 30 inches (where required for drainage)

    “The South Carolina Department of Transportation (SCDOT) shall permit and construct, at its expense, a single, all-weather driveway for the portion within the right-of-way of state highways, to provide ingress and egress to the abutting property at locations where access does not constitute hazardous conditions.”
    One more reviewed finding on this topic
    • Required — Private driveways or side-road entrances and exits opening onto highways in the State highway primary system that are not controlled-access facilities.
      “unless a permit for such driveway or side-road entrance or exit shall have been obtained from the Department.”
  • Campground & park staysLimited

    Camping at South Carolina state-park campsites.

    • Camping is subject to state-park facility rules and department permission.
    • A campsite may not be occupied for more than fourteen consecutive days without permission from the Department of Parks, Recreation and Tourism.
    • The rule concerns state parks and does not establish a statewide rule for private land or locally administered campgrounds.

    maximum consecutive campsite occupancy without department permission: <= 14 days (Longer occupancy requires permission from the department.)

    “No person or persons shall occupy a campsite for a consecutive period longer than fourteen days without permission from the department.”
  • county zoning authorityGeneral

    South Carolina counties may adopt zoning ordinances for all or specific portions of their unincorporated areas when the statutory comprehensive-plan prerequisite is satisfied.

    • A local planning commission must have prepared and recommended the land-use element of the comprehensive plan.
    • The county governing body must have adopted at least the land-use element of the comprehensive plan before adopting a zoning ordinance.
    • A county may exercise the chapter's powers in the total unincorporated area or in specific parts of the unincorporated area.
    • Adjacent unincorporated areas may be placed under municipal jurisdiction only through ordinances and a formally approved agreement between the municipality and county councils, with boundaries, authority limitations, and representation specified.
    • Zoning regulations must be made in accordance with the comprehensive plan.
    • Regulations must generally be uniform for each class or kind of building, structure, or use within each district, although regulations may differ between districts.
    • The statute expressly permits regulation of building and land use, density, building size, location, height, bulk, number of stories, land dimensions, yards, courts, and other open spaces.
    “When the local planning commission has prepared and recommended and the governing body has adopted at least the land use element of the comprehensive plan as set forth in this chapter, the governing body of a municipality or county may adopt a zoning ordinance to help implement the comprehensive plan.”
  • county building authorityGeneral

    South Carolina counties' authority and duty to administer building-code enforcement and require building permits for new construction and renovation, including in unincorporated areas.

    • Each county must appoint a building official or contract with another political subdivision so that its unincorporated area is under the jurisdiction of a building official.
    • A county may prescribe fees for construction permits and inspections.
    • A county may submit an affidavit for exemption if it cannot arrange services for an annual period at costs totally within the schedule of fees recommended in the building codes; the exemption lasts until services become financially feasible or for five years, whichever is less, and may be renewed at five-year intervals after another determination.
    • Counties may establish agreements with other governmental entities to issue permits and enforce building codes.
    • All counties must require by law or ordinance that building permits be issued for persons engaging in new construction or renovation, and permits must correspond to minimum Department of Revenue requirements.
    • Counties and municipalities must enforce only the national building and safety codes provided in Chapter 9.
    • A county may not enforce the adopted fire-prevention-code portion regulating outdoor burning for forestry, wildlife, and agricultural purposes as regulated by the South Carolina Forestry Commission.
    • A permit is not required for a wheelchair-access ramp built with Medicare or Medicaid dollars when construction is performed, overseen, or inspected by an Americans with Disabilities Act inspector.

    permit-copy delivery to county assessor: <= 10 days (After issuance of each building permit)

    “All counties shall require by law or ordinance that building permits be issued to persons engaging in new construction or renovation and such permits shall correspond to minimum requirements of the department. The county shall furnish a copy of the building permit to the assessor within ten days after such issuance.”

Inside cities and towns in Williamsburg County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • Local zoningPresent (with conditions)

    Zoning within the Town of Kingstree municipal limits.

    • The Town of Kingstree publishes a Kingstree Zoning Ordinance identified as 2024-03.
    • The Town's planning and code-enforcement department provides a current zoning map and zoning application.
    “KINGSTREE ZONING ORDINANCE WITH AMENDMENTS THROUGH ORDINANCE 2024-03”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Zoning districts — Published zoning districts in unincorporated Williamsburg County.
  • Minimum dwelling size — Minimum dwelling size in unincorporated Williamsburg County.
  • Lot coverage — Lot coverage in unincorporated Williamsburg County.
  • Building height — Building height in unincorporated Williamsburg County.
  • Living in an RV — Long-term RV occupancy on private land in unincorporated Williamsburg County.
4 more unanswered
  • Camping on your land
  • Manufactured homes
  • Accessory dwellings
  • Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Williamsburg County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from South Carolina’s water agency.

Actively managed

This basin is under active state management — new water use is scrutinized, though a domestic well is usually still allowed.

Household wellExempt — no permit or water right

S.C. Code 49-5-70(A)(4) exempts a person withdrawing groundwater at a single-family residence for noncommercial use; no withdrawal permit for a household well anywhere in SC, including inside a Capacity Use Area.

Limit: single-family/household use exempt; permit only >=3 MG/month (~100,000 gpd)

SC Groundwater Use and Reporting Act, S.C. Code 49-5-70(A)(4) ↗

Regulated-riparian state (large uses permitted). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the South Carolina state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Williamsburg County, South Carolina

Is Williamsburg County a good place to live off-grid or homestead?

Williamsburg County scores 69/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 50.1″/yr rainfall plus 74.2% wooded land.

Do you need a building permit in Williamsburg County, South Carolina?

Williamsburg County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by South Carolina Department of Environmental Services (SCDES). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Williamsburg County, South Carolina?

Land in Williamsburg County runs about $2,941 per acre, based on the latest county data.

What is the water situation in Williamsburg County?

Williamsburg County gets about 50.1" of rain a year, with severe drought in roughly 2.5% of years. On water rights, Williamsburg County lies in the Pee Dee Capacity Use Area — Designated 2004; permit required >=3 MG/month. A new single-family domestic well is exempt..

How remote is Williamsburg County?

A representative private-land location has about 27,264 people within a 30-minute drive and 2,469,636 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Williamsburg compares in South Carolina

Compare side-by-side →See all 46 South Carolina counties ranked →