Bolthole Index

Marion County, South Carolina

Building permits, zoning and land rules in Marion County, South Carolina

61Index Score / 100
#15 of 46 in South Carolina

Unincorporated Marion County, South Carolina requires a building permit for a commercial or residential building project valued above $1,000 or larger than 200 square feet1. Unincorporated Marion County is zoned, so obtain zoning compliance before applying for the construction permit1,2. Where public or community sewer is unavailable, SCDES septic approval must come before the county building permit3.

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

In unincorporated Marion County, a commercial or residential building project needs a building permit when its value exceeds $1,000 or its area exceeds 200 square feet.

In unincorporated Marion County, a commercial or residential building project needs a building permit when its value exceeds $1,000 or its area exceeds 200 square feet1. Marion County enforces the 2021 International Building, Residential, Fire, Plumbing, Mechanical and Fuel Gas codes, the 2020 electrical code and the 2009 energy code1. South Carolina has adopted replacement editions for implementation in 2027; confirm the edition in force when applying7. A qualifying owner-builder must personally sign the application, supervise construction, use properly licensed trades and build for the owner or family rather than sale or rent4. Selling, renting or offering the home for sale or rent within 2 years can trigger the statutory presumption that the home was built for sale or rent4. Marion County requires a signed affidavit recorded with the Clerk of Court; state law also requires a promptly recorded public notice with the register of deeds1,4.

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

The Marion County Building Inspections Office is the permit and inspection contact at 2523 East Highway 76 in Marion; call (843) 423-3904.

The Marion County Building Inspections Office is the permit and inspection contact at 2523 East Highway 76 in Marion; call (843) 423-39041. The office reviews plans, conducts onsite construction inspections, enforces local ordinances and administers National Flood Insurance Program enforcement1. The county's application sequence begins with zoning compliance, then proof of a paid water or sewer tap when applicable, plans when required and a completed application1. Marion County permit holders must request foundation, framing, final and applicable underground, rough-in and final trade inspections before covering work; covered work may have to be exposed, and code violations must be corrected before the next construction phase1. Marion County Council sets building and use permit fees, and the fee schedule is kept at the office of the Zoning Official; the cited fee provision does not list amounts, so ask for the schedule before budgeting1,2.

Does Marion County have zoning?

The Marion County zoning ordinance applies throughout unincorporated Marion County; incorporated municipalities are outside that county ordinance's jurisdiction.

The Marion County zoning ordinance applies throughout unincorporated Marion County; incorporated municipalities are outside that county ordinance's jurisdiction2. Mullins administers its own zoning inside city limits; SCDES remains the septic-permit authority where public or community sewer is unavailable3,8. The county zoning map is filed with the Code Enforcement Official, and uses and dimensions vary by district; ask the Building Inspections Office for the parcel's designation1,2. On public sewer, a detached house or mobile home on an individual lot requires at least 10,000 square feet; without public sewer, SCDES requirements also apply and the county minimum still controls2. Setbacks vary by district and use, and a structure at least 30 feet tall gains one additional horizontal foot of setback for each vertical foot above 30 feet2. In unincorporated Marion County, a residential-designed manufactured home must have at least 900 square feet of enclosed living area, and a multiple-section home must be wider than 20 feet2. We could not confirm a minimum floor area for site-built houses or an accessory-dwelling rule; ask the Building Inspections Office before designing either1.

How do septic permits work in Marion County?

The South Carolina Department of Environmental Services issues septic permits in Marion County where public or community sewer is unavailable.

The South Carolina Department of Environmental Services issues septic permits in Marion County where public or community sewer is unavailable3. First verify sewer access, because SCDES cannot issue an onsite-wastewater permit where public sewer is accessible9. If sewer is unavailable, apply through the SCDES portal; the application fee is $150 and an approved Permit to Construct remains valid for five years3. The septic permit must precede the county building permit3. During installation, arrange the SCDES inspection before covering the system; an approved installation receives an Approval to Operate3. Only 0.6% of Marion County soils are rated without severe limits for a conventional drain field, so make site suitability a purchase contingency6.

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

In Marion County's RC district, a family living on the premises may store no more than one travel or camping trailer, and that trailer may not be occupied permanently.

In Marion County's RC district, a family living on the premises may store no more than one travel or camping trailer, and that trailer may not be occupied permanently2. RV parks and campgrounds follow a separate rule requiring at least two acres, approved water and sewer, a fire-protection plan and no more than 12 vehicles per acre2. Neither rule confirms ordinary temporary camping on a private lot in every district, so ask the Building Inspections Office about the parcel and proposed use1. We could not confirm a distinct tiny-home occupancy rule; ask the Building Inspections Office about the proposed dwelling1. Where manufactured housing is permitted in unincorporated Marion County, a certificate of occupancy requires approved installation, underskirting, anchoring, permanent landing steps, removal or concealment of towing apparatus, approved sanitary sewer and a separate electric meter2.

What are the steps to building a home in Marion County?

Ask the Marion County Building Inspections Office to confirm that the parcel is unincorporated, identify its zoning district and issue zoning compliance.

  1. Ask the Marion County Building Inspections Office to confirm that the parcel is unincorporated, identify its zoning district and issue zoning compliance1,2.
  2. Verify sewer availability; if public sewer is inaccessible, apply to SCDES for site approval and a septic Permit to Construct before the county building permit9,10.
  3. If using a private residential well, submit the state Notice of Intent and $70 fee before drilling5.
  4. Submit proof of any applicable water or sewer tap payment, plans if required and the county application1.
  5. If building as an owner, meet the state supervision and licensed-trade conditions, then sign and record the county-required affidavit with the Clerk of Court1,4.
  6. Request each applicable county inspection before work is covered1.
  7. Have SCDES inspect the septic system before it is covered and obtain approval to operate3.

What should you check before buying land in Marion County?

Confirm the parcel's jurisdiction, zoning district, allowed use, setbacks and lot coverage with the Marion County Building Inspections Office before closing.

Confirm the parcel's jurisdiction, zoning district, allowed use, setbacks and lot coverage with the Marion County Building Inspections Office before closing1,2. If land will be divided, ask about subdivision review: within residential subdivisions of three or more lots, the cited county provision permits only single-family dwellings and accessory uses2. Where sewer is unavailable, make SCDES septic approval a contingency because only 0.6% of county soils are rated without severe limitations for a conventional drain field3,6. Ask the Building Inspections Office which parcel-level floodplain standards apply1. For state-highway access, SCDOT handles qualifying residential driveways in the state right-of-way11.

Watch-outs

  • Do not apply for the county construction permit before resolving zoning compliance and, where sewer is unavailable, the SCDES septic permit1,3.
  • Only 0.6% of Marion County soils are rated without severe limits for a conventional drain field, so obtain a parcel-specific septic evaluation before relying on a standard system6.
  • In the RC district, a stored travel or camping trailer may not be occupied permanently; ask the Building Inspections Office about other districts and temporary use1,2.
  • A farm structure other than a residence needs an owner affidavit filed with the county building-code official before construction, and the county can still issue a building permit for it12.

Sources

12 official pages, each quoted and re-checked · written October 11, 2026

  1. Building Permit & Business Licenses
  2. Marion County Zoning Ordinance
  3. Septic Tanks - Residential, Single Home Builder
  4. South Carolina Code of Laws, Section 40-59-260
  5. Private Drinking Water Wells
  6. 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
  7. 2024 Building Code Modification Index (South Carolina statewide rule)
  8. Mullins: Mullins Code of Ordinances, Appendix A—Zoning, Sec. 12.01 Definitions (Marion County)
  9. Professional Soil Classifiers - Sewer Accessibility Verification (South Carolina statewide rule)
  10. Septic System Permit Process
  11. Engineering Directive ED-16: Driveway Entrances (South Carolina statewide rule)
  12. South Carolina Code Title 6, Chapter 9

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

Like 5 of its 6 neighbors, Marion County requires a building permit for a home.

RuleMarion CountyFlorence CountyHorry CountyDillon CountyWilliamsburg CountyDarlington CountyGeorgetown County
Building permitRequiredRequiredRequiredRequiredRequiredLimitedRequired
County zoningYesYesYesYesNoYesYes
Septic permitsSCDESSCDESSCDESSCDESSCDESSCDESSC Dept. of Env. Services

County locator

Marion County in South Carolina

61
County map
Marion County highlighted among the South Carolina counties · colored by Index score

How Marion County scores

61 / 100 · #15 of 46 in South Carolina · six factors, land price, tax, rain and climate

Seclusion46100% ev.
Self-Sufficiency64100% ev.
Admin Boringness45100% ev.
Durability52100% ev.
Property Autonomy46100% ev.
Carry Cost86100% 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 →

$144kTypical home
0.5%Property tax
$2,868Land / acre
49.2"Annual rain
1.8% of yrsSevere drought
11.4 / yr (+9.7)Mid-century 100°F days
14.5 daysMid-century dry spell
2.24" (+6.5%)Mid-century 1-day rain
1.25×Wildfire change factor
100%Forward climate coverage
$1,614Home insurance / yr
-0.5% / yrInsurance growth
1.96%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
31,622People within 30 min
2,629,764People within 2 hr
57,699Radius comparison (15 mi)
58.3People / sq mi
0.9%Federal land
100%Land at 15% slope or less
0.6%Soils rated "not limited" for septic (strict USDA rating)
1,922 acWorkable land screen
71.5%Wooded land
60.7 tonsBiomass / forest ac
63.9°FAvg temp

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Cities and towns in Marion 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 covered: Marion · Town of Nichols · Town of Sellers

Answers from the rulebook for Marion County

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

Marion County rules

  • Building permitRequired

    Commercial or residential building projects in Marion County exceeding the stated threshold.

    • Any project on commercial or residential buildings exceeding $1,000 and/or 200 square feet requires a permit.
    • A zoning compliance permit, water/sewer tap receipt if applicable, plans if required, a completed application, and other listed documents may be required.
    • A signed contract with both contractor and homeowner signatures is required when a contractor is used.

    project value: > 1000 USD (and/or 200 square feet) · project area: > 200 sq ft (and/or project value exceeding $1,000)

    “Any project on commercial or residential buildings, the value of which exceeds $1000 and/or 200 sq. ft., requires a permit.”
    One more reviewed finding on this topic
    • Required — Commercial or residential building projects handled by the Marion County Building Inspections Office.
      “Any project on commercial or residential buildings, the value of which exceeds $1000 and/or 200 sq. ft., requires a permit.”
  • Owner-builder exemptionConditional

    Homeowner-performed construction requiring a Marion County construction permit.

    • A homeowner completing the work themselves must sign and record an affidavit with the Clerk of Court Office as part of the construction-permit process.
    “If the Homeowner is completing the work themselves, an affidavit must be signed and recorded with the Clerk of Court Office.”
  • Building code adoptedAdopted (with conditions)

    Construction governed by Marion County building inspections.

    • The county states it currently uses the 2021 IBC, IRC, IFC, IPC, IMC, and IFGC.
    • The 2020 NEC and 2009 IECC are enforced.
    • The state mandates the actual dates of code-edition changes for South Carolina jurisdictions.

    International Codes edition: 2021 (IBC, IRC, IFC, IPC, IMC, and IFGC) · National Electrical Code edition: 2020 · International Energy Conservation Code edition: 2009

    “We currently use the 2021 edition of the International Codes”
    2 more reviewed findings on this topic
    • Adopted (with conditions) — Construction in Marion County subject to the county building-inspection office.
      “We currently use the 2021 edition of the International Codes (IBC, IRC, IFC, IPC, IMC, IFGC). The 2020 Edition of the NEC and the 2009 IECC are enforced.”
    • Adopted (with conditions) — Construction regulated by the Marion County Building Inspections Office.
      “We currently use the 2021 edition of the International Codes (IBC, IRC, IFC, IPC, IMC, IFGC).”
  • InspectionsRequired

    Construction inspections for projects handled by the Marion County Building Inspections Office.

    • The permit holder must contact the Building department for required inspections at the appropriate time of construction.
    • If work is covered before inspection, the permit holder may be required to remove the covering for inspection.
    • The Building Official performs the listed inspections upon request of the permit holder or authorized agent.
    • Code violations must be corrected before the next phase of construction begins.
    • The page lists building, electrical, plumbing, mechanical, and gas inspections, including final inspections before occupancy where applicable.
    “It is the permit holders’ responsibility to contact the Building department for required inspections at the appropriate time of construction.”
    2 more reviewed findings on this topic
    • Required — Permitted construction in Marion County.
      “It is the permit holders’ responsibility to contact the Building department for required inspections at the appropriate time of construction. If you cover up work before it is inspected, you may be required to remove it for the required inspection to be performed.”
    • Required — Permitted building, electrical, plumbing, mechanical, and gas work.
      “It is the permit holders’ responsibility to contact the Building department for required inspections at the appropriate time of construction.”
  • Certificate of occupancyLimited

    Manufactured housing where permitted by the Marion County zoning ordinance.

    • Manufactured housing must satisfy the listed installation, underskirting, landing-step, anchoring, towing-apparatus, DHEC sanitary-sewer approval, and separate-electric-meter requirements before issuance of a certificate of occupancy.
    “Prior to the issuance of a certificate of occupancy”
  • County-wide zoningPresent (with conditions)

    County zoning regulation in unincorporated Marion County.

    • The ordinance expressly applies to all unincorporated portions of Marion County.
    • The ordinance establishes zoning districts and an official zoning map.
    “This Ordinance shall apply to all unincorporated portions of Marion County.”
    2 more reviewed findings on this topic
    • Present (with conditions) — County zoning in unincorporated Marion County.
      “This Ordinance shall apply to all unincorporated portions of Marion County.”
    • Present — Zoning regulation in the unincorporated portions of Marion County.
      “This Ordinance shall apply to all unincorporated portions of Marion County.”
  • Local zoningPresent (with conditions)

    Land use and development in the unincorporated portions of Marion County.

    • The ordinance applies only to unincorporated portions of Marion County.
    • The ordinance establishes zoning districts and an Official Zoning Map; specific use and development standards vary by district.
    • This claim does not establish zoning regulation administered by incorporated municipalities.
    “This Ordinance shall apply to all unincorporated portions of Marion County.”
  • Zoning districtsPublished (with conditions)

    Zoning districts and the official zoning map for unincorporated Marion County.

    • The ordinance lists GDD, IND, RCD, RMD, RRD, SEDD, PDD, and IPD districts.
    • The official copy of the map is filed in the Code Enforcement Official's office.
    “the County may hereby be divided into the following zoning districts:”
    2 more reviewed findings on this topic
    • Published (with conditions) — Zoning districts established for unincorporated Marion County.
      “the County may hereby be divided into the following zoning districts”
    • Published — Zoning districts and official zoning map for unincorporated Marion County.
      “GDD General Development District IND Industrial Development District RCD Residential Conservation District RMD Residential Multi-Use District RRD Rural Resource District SEDD Special Entertainment Development District (amended 3-1-07) PDD Planned Development District (amended 11-27-07) IPD Industrial Park District (amended 9-25-08)”
  • Minimum dwelling sizeSpecified

    Residential-designed manufactured homes in the unincorporated portions of Marion County.

    • The dwelling must be a single-family dwelling built according to the Federal Manufactured Housing Construction and Safety Standards (24/245 CFR 3280) HUD Code.
    • The home must have a minimum width over 20 feet for a multiple-section home.
    • The home must have a minimum 3:12 roof pitch and a type of shingle commonly used in standard residential construction.
    • The home must be covered with exterior material customarily used on site-built homes, including listed siding materials or similar materials.
    • The home must have a roof overhang of not less than eight (8) inches.
    • The ordinance applies to all unincorporated portions of Marion County.

    enclosed living area: >= 900 square feet · width: > 20 feet (multiple-section home)

    “This Ordinance shall apply to all unincorporated portions of Marion County. [...] 2) has a minimum of 900 square feet of enclosed living area;”
  • Minimum lot sizeSpecified

    New buildings and structures in unincorporated Marion County.

    • On public sewer, the listed minimum lot or area requirements apply.
    • Without public sewer, DHEC requirements apply, but county requirements may not be less than the listed minimums.

    single-family detached dwelling minimum: >= 10000 square feet · mobile home on individual lot minimum: >= 10000 square feet · duplex minimum: >= 18000 square feet · multifamily development minimum: >= 2 acres per development · multifamily unit minimum: >= 4000 square feet per unit

    “Single-family detached dwelling 10,000 square feet Mobile home on individual lot 10,000 square feet Duplex 18,000 square feet Multi-family and apartment developments Area per development 2 acres Area per unit 4,000 square feet”
  • SetbacksSpecified

    Buildings and structures subject to the Marion County zoning ordinance.

    • Required yards or setbacks must remain open and unobstructed except as specifically provided by the ordinance.
    • Measurements are taken perpendicular from the nearest property or street right-of-way line to the prescribed building line.
    • Exact dimensional standards vary by district and use.
    “A required yard or setback is open space that lies between the established building line and the nearest lot or street right-of-way line. Such yard or setback shall be unoccupied and unobstructed from the ground upward except as is specifically provided by this section.”
  • Lot coverageSpecified

    Impervious surface coverage in unincorporated Marion County.

    • The ordinance limits impervious surface areas by proposed use.

    residential impervious surface maximum: <= 55 percent of lot/site area · commercial/business impervious surface maximum: <= 80 percent of lot/site area · industrial/warehousing/storage impervious surface maximum: <= 75 percent of lot/site area · institutional impervious surface maximum: <= 65 percent of lot/site area

    “The following uses shall be limited in the amount of on-site impervious surface areas to the prescribed ratios: Percent Total Proposed Use Lot/Site Area Residential 55 Commercial/Business 80 Industrial/Warehousing/Storage 75 Institutional 65”
  • Building heightSpecified

    Buildings or structures 30 feet or taller in unincorporated Marion County.

    • A building or structure of 30 feet or more must be set back one additional horizontal foot for every additional vertical foot over 30 feet.

    initial permitted height: 30 feet · additional setback ratio over 30 feet: per 1 horizontal foot per vertical foot

    “Where a building or structure of 30 feet or more is proposed, said building or structure shall be set back from the building line one additional foot in horizontal distance for each one foot in additional vertical distance (building height) over 30 feet.”
  • Living in an RVLimited

    RV parks and campgrounds in unincorporated Marion County.

    • The site must be at least two acres.
    • Maximum impervious surface ratio is 15 percent.
    • Maximum density is 12 vehicles per acre.
    • Setbacks are 50 feet from arterial rights-of-way, 40 feet from collector rights-of-way, 30 feet from local rights-of-way, and 25 feet from other property lines.
    • Water and sewer must be approved by DHEC.
    • A fire protection plan is required.
    • This claim does not establish unrestricted long-term occupancy of an RV outside an approved park or campground.

    minimum site area: >= 2 acres · maximum density: <= 12 vehicles per acre

    “The site shall be at least two (2) acres.”
    One more reviewed finding on this topic
    • Limited — Travel or camping trailers parked or stored on residentially occupied lots in the RC district.
      “Not more than one (1) travel or camping trailer per family living on the premises shall be permitted on a lot, and the trailer shall not be occupied permanently while it is parked or stored.”
  • Manufactured homesLimited

    Manufactured-home placement and occupancy where permitted by the Marion County zoning ordinance.

    • Before certificate of occupancy, the home must comply with the manufacturer’s installation manual or South Carolina Manufactured Housing Board requirements.
    • It must be underskirted, anchored, equipped with permanent landing steps, have towing apparatus removed or concealed, have DHEC-approved sanitary sewer, and use a separate electric meter.
    • Manufactured-home parks must meet additional acreage, frontage, roadway, spacing, utility, open-space, density, parking, buffer, and licensing requirements.

    manufactured-home park minimum site: >= 5 acres · manufactured-home park maximum density: <= 8 spaces per acre

    “be provided with a sanitary sewer system approved by DHEC.”
    One more reviewed finding on this topic
    • Limited — Manufactured housing where permitted by the county zoning ordinance.
      “Prior to the issuance of a certificate of occupancy and where permitted by this Ordinance, manufactured housing shall: a) be installed in accord with the Manufacturer=s Installation Manual.”
  • Mandatory utility hookupConditional

    Construction permit applications in Marion County where water or sewer service is applicable.

    • The county requires submission of a receipt showing that the water/sewer tap has been paid, if applicable.
    “Submit a receipt showing water/sewer tap has been paid (if applicable)”
    2 more reviewed findings on this topic
    • Conditional — Construction-permit applications in Marion County when water or sewer service applies.
      “Submit a receipt showing water/sewer tap has been paid (if applicable)”
    • Conditional — Construction permits and manufactured-home installations in unincorporated Marion County.
      “It shall be unlawful for any public utility or electrical supplier to connect power to any manufactured home in the absence of all approved permits.”
  • Subdividing landLimited

    Residential subdivisions and subdivision-related development in unincorporated Marion County.

    • Within residential subdivisions of three or more lots, only single-family dwellings and accessory uses are permitted or erected under the cited provision.
    • The Planning Commission makes the final determination when subdivision boundaries or street classifications are questioned.

    residential subdivision threshold: >= 3 lots

    “Within the boundaries of any residential subdivision of three (3) or more lots”
  • Building in a floodplainLimited

    Development regulated through Marion County building inspections and floodplain enforcement.

    • The county states its office enforces the National Flood Insurance Program.
    • Qualifying farm structures remain subject to FEMA National Flood Insurance Program standards under South Carolina law.
    • Detailed requirements in the county Flood Zone Ordinance were not resolved because the linked official PDF could not be opened.
    “Enforcement of the National Flood Insurance Program”
  • Permit feesPublished (with conditions)

    Building and use permit fees under the Marion County Zoning Ordinance in unincorporated Marion County.

    • Fees to cover the administrative cost of issuing building and use permits must accompany all permit requests.
    • The fee amount is determined by the Marion County Council.
    • A fee schedule is available at the office of the Zoning Official.
    • The cited provision does not state the fee amounts or provide a numeric fee schedule online.

    fee amount: determined by County Council · fee schedule availability: available at the office of the Zoning Official

    “Fees to cover the administrative cost of issuing building and use permits shall accompany all requests for such permits. The amount of such fees shall be determined by County Council, a schedule of which shall be available at the office of the Zoning Official.”
  • Permit processPublished (with conditions)

    Marion County construction-permit applications.

    • Obtain zoning compliance.
    • Submit water/sewer tap receipt if applicable.
    • Submit two plan sets if required.
    • Complete the building-permit application.
    • Owner-builders must sign and record an affidavit with the Clerk of Court.
    • Contractors must present a South Carolina contractor license and identification card and obtain a county business license.
    • A signed contract between contractor and homeowner is required before permit issuance.
    “Obtain a zoning compliance permit [...] Submit a receipt showing water/sewer tap has been paid (if applicable) [...] Submit two (2) sets of plans (if required) [...] Complete a Building permit application”

South Carolina rules that apply here

  • Who permits septicState (with conditions)

    Onsite wastewater permitting and inspection applicable in Marion County.

    • SCDES approval and permitting are required where a home or manufactured home is not served by public or community sewer.
    • Local ordinances may impose additional septic inspection requirements.
    “you must first obtain SCDES's approval and a permit to install a septic system.”
    2 more reviewed findings on this topic
    • State (with conditions) — Onsite wastewater permitting and inspection for Marion County properties not served by public or community sewer.
      “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 — 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

    New onsite wastewater systems where public or community sewer is unavailable.

    • The applicant must check sewer availability.
    • An Onsite Wastewater System Application must be submitted through the SCDES ePermitting Portal.
    • SCDES evaluates site suitability.
    • If approved, SCDES issues a Permit to Construct valid for five years.
    • If the site is not approved, the inspector provides alternative options.

    Permit to Construct validity: 5 years

    “If not available, proceed with a septic system permit.”
    2 more reviewed findings on this topic
    • Required — New homes or manufactured homes on property without public or community sewer.
      “Application Fee: $150 [...] Permit Expiration and Modifications: 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 of an onsite wastewater system before the system is covered.

    • The installer must schedule a final SCDES inspection before covering the system.
    • If the inspector is delayed more than 30 minutes, the installer may perform a self-inspection using the SCDES-approved form.
    • If approved, SCDES issues an Approval to Operate permit.

    inspector-delay self-inspection threshold: > 30 minutes (installer may use the SCDES-approved self-inspection form)

    “Before covering the system, the installer must schedule a final inspection with SCDES.”
    2 more reviewed findings on this topic
    • Required — New septic system installation in Marion 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. If a SCDES inspector does not arrive within 30 minutes of the scheduled time, a licensed installer has the option to proceed with a self-inspection of the installation.”
    • 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.”
  • Off-grid sanitationLimited

    A nonwater-carried sewage treatment system used for toilet wastes where water under pressure will be connected to the structure and gray water is generated statewide in South Carolina.

    • The applicant must submit plans from a Registered Professional Engineer licensed in South Carolina meeting Appendix S paragraph (2)(a) through (f) requirements for all toilet wastes.
    • The applicant must apply for and obtain a Department permit to construct and approval to operate an onsite wastewater system for gray-water treatment.
    • The gray-water system must meet all permit, licensing, and onsite wastewater-system requirements under Regulation 61-56.
    • The initial gray-water system size may be reduced by twenty-five percent.

    initial gray-water system size reduction: 25 percent (The system must otherwise meet all permit, licensing, and onsite wastewater-system requirements under Regulation 61-56.)

    “the initial system size may be reduced by twenty-five (25) percent.”
    One more reviewed finding on this topic
    • Limited — Nonwater-carried sewage treatment systems, including biological, composting, or incinerating toilets, for toilet wastes statewide in South Carolina.
      “The permitting of nonwater-carried sewage treatment systems, such as a biological, composting, or incinerating toilet, may be considered for toilet wastes”
  • 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 Marion 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.”
    3 more reviewed findings on this topic
    • Conditional — Construction or improvement of qualifying farm structures in Marion County.
      “The provisions of this section do not apply unless, before constructing a farm structure, the person owning the property on which the structure is to be constructed files an affidavit with the county or municipal official responsible for enforcing the building code stating that the structure is being constructed as a farm structure.”
    • 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.”
  • Shed and accessory-building permit exemptionAvailable (with conditions)

    An owner of residential property making an improvement consisting of a one-story detached accessory structure.

    • The improvement must be a one-story detached accessory structure.
    • The floor area must not exceed 200 square feet.
    • The statutory exemption applies to an owner of residential property who makes the improvement.
    • The listed improvements are exempt from building-permit application requirements and the owner is not required to hold a residential builder or residential specialty contractor license under this chapter.

    accessory-structure floor area: <= 200 square feet (Only for a one-story detached accessory structure improved by the residential-property owner.)

    “owner of residential property [...] one-story detached accessory structures [...] floor area does not exceed two hundred square feet [...] exempt from building permit application requirements”
  • 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.”

Still unanswered

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

  • Camping on your land — Temporary camping on private land outside approved campgrounds in unincorporated Marion County.
  • Tiny homes — Tiny home occupancy on private land in unincorporated Marion County
  • Accessory dwellings — Accessory dwelling units in unincorporated Marion County.
  • Short-term rentals — Short-term rentals generally in unincorporated Marion County.

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 Marion 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 Marion County, South Carolina

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

Marion County scores 61/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 49.2″/yr rainfall plus 71.5% wooded land.

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

Land in Marion County runs about $2,868 per acre, based on the latest county data.

What is the water situation in Marion County?

Marion County gets about 49.2" of rain a year, with severe drought in roughly 1.8% of years. On water rights, Marion 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 Marion County?

A representative private-land location has about 31,622 people within a 30-minute drive and 2,629,764 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 Marion compares in South Carolina

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