Bolthole Index

Calhoun County, South Carolina

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

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

Unincorporated Calhoun County, South Carolina requires building and zoning permits through the county Building and Planning Office123. County zoning covers unincorporated land, while the South Carolina Department of Environmental Services handles septic approval and inspection45. For a home or manufactured home without public or community sewer, obtain the SCDES septic permit before the county building permit6.

At a glance

Building permit
Required through the Calhoun County Building and Planning Office1
Zoning
Yes in unincorporated areas; standards vary by district and use47
Septic
SCDES approval is required where public or community sewer is unavailable6
Owner-builder
Available for a qualifying owner-occupied residence, with conditions8
Farm structures
A qualifying nonresidential farm structure requires an owner affidavit before construction9
RV living
Long-term private-land occupancy was not confirmed; ask Building and Planning before relying on it10
Manufactured homes
Allowed subject to county permits and inspections before occupancy11
Residential well
A Notice of Intent and a $70 fee are required before construction12

Who to call

Building permits

Calhoun County Building and Planning Office

Building permits, inspections, planning and zoning review, code enforcement, and floodplain permit forms

(803) 874-4201

planning@calhouncounty.sc.gov

102 Courthouse Drive, Administrative Annex Suite 112, Saint Matthews, SC

Online permits →

Septic permits

South Carolina Department of Environmental Services — Onsite Wastewater Program

State site evaluation, permitting and final inspection for onsite wastewater systems; the Sandhills division serves Calhoun County

(803) 898-3432

info@des.sc.gov

2600 Bull St., Columbia, SC 29201

Floodplain permits

Calhoun County Floodplain Administrator

Floodplain development permit applications and guidance

(803) 874-4201

planning@calhouncounty.sc.gov

102 Courthouse Dr., St. Matthews, SC 29135

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

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

Yes. Unincorporated Calhoun County requires a building permit, and a zoning permit is required before a building, sign or structure is erected, moved, enlarged, altered or demolished12. The county enforces South Carolina's adopted 2021 building codes and modifications, implemented locally in 202313. For a home or manufactured home that will use septic, SCDES approval must come first; without the septic permit, the county cannot issue the building permit6. Calhoun County requires at least 24 hours' notice for residential inspections, performed Monday, Wednesday and Friday143.

A property owner may use South Carolina's owner-builder exemption for a qualifying residence intended solely for the owner or family, but the owner must personally appear, sign the permit application, supervise construction and record the required notice8. The owner must use licensed or registered people where required and cannot hire an unlicensed builder or specialty contractor8. Selling or renting within 2 years after completion or the certificate of occupancy is evidence against eligibility unless the commission approves otherwise8.

Who handles Calhoun County building permits and inspections?

The Calhoun County Building and Planning Office is the first stop for building permits, inspections, planning, zoning and code-enforcement questions3. The office is at 102 Courthouse Drive, Administrative Annex Suite 112, Saint Matthews, SC; call (803) 874-4201 or email planning@calhouncounty.sc.gov3. The county page also links an online permit portal3.

A residential submission includes a complete application, scaled plans, energy-code and HVAC documents, a site plan, address verification, zoning approval, licensing and contractor information, plus proof of water and sewer availability or a septic permit; the Building Official may require more1516. The checklist does not establish a universal requirement to connect to public utilities16. Calhoun County's published fee schedule charges $50 for a building permit on a project valued up to $10,000 and $50 plus $5 per thousand dollars of value for a project valued from $10,001 to $100,000; residential plan review adds 10% of the permit fee, and a re-inspection costs $5017. A manufactured-home permit costs $250 for a single-wide and $350 for a multi-wide17. Ask Building and Planning to confirm current fees before budgeting3.

Does Calhoun County have zoning?

Yes. Calhoun County's zoning and development rules apply in unincorporated areas and do not apply inside incorporated municipalities4. The county divides unincorporated land into zoning districts shown on its Official Zoning Map, and the Building and Planning Office handles zoning and plat review183.

Lot size, setbacks, impervious coverage and building height vary by district, use and housing type7192021. For example, the residential table lists a 10,000-square-foot minimum lot for detached homes and manufactured homes, while an approved conservation subdivision may reduce the RM minimum to 7,500 square feet7. The RP district uses a 150-foot front setback, 50-foot side setbacks, a 25-foot rear setback and a 35-foot maximum building height, but those numbers do not apply countywide1921. Calhoun County's minimum dwelling floor area, accessory-dwelling rules and complete tiny-home occupancy rule could not be confirmed; ask Building and Planning for a written answer tied to the parcel, district and proposed design3.

How do septic permits work in Calhoun County?

The South Carolina Department of Environmental Services, not Calhoun County, administers onsite wastewater permitting and inspection in Calhoun County5. For a new home or manufactured home on land without public or community sewer, apply through the SCDES ePermitting Portal and obtain site approval and a Permit to Construct before installation; the permit remains valid for 5 years, and renewal or an approved modification requires a new application and fee6. The residential application fee is $1506.

The installer must schedule an SCDES inspection before covering a new septic system22. If the inspector does not arrive within 30 minutes of the scheduled time, a licensed installer may self-inspect with the approved final-inspection form22. State law generally does not require regular inspections of existing systems, although local ordinances may add requirements22. Only about 30.8% of Calhoun County soils are rated free of severe limitations for a conventional drain field, so make septic feasibility a purchase contingency23.

Can you live in an RV or tiny home in Calhoun County?

Calhoun County's complete rule for living long-term in an RV on private land could not be confirmed. A retreat center or vacation camp needs Board of Zoning Appeals approval before a zoning permit may be issued, but that rule does not by itself answer ordinary private-land RV occupancy24. Ask Building and Planning what the parcel's district allows and what utility or time limits apply3.

A complete tiny-home occupancy rule and minimum dwelling-floor-area rule also could not be confirmed. A tiny home still must clear county building and zoning review, and a site without public or community sewer needs SCDES septic approval first1225. Manufactured homes are expressly subject to county building and planning permits and inspections before occupancy11.

How do you build a home in Calhoun County, step by step?

  1. Give the Calhoun County Building and Planning Office the parcel and proposed use; confirm its zoning district, dimensional standards and current fees7193.
  2. If public or community sewer is unavailable, obtain SCDES site approval and the septic permit before seeking the county building permit6.
  3. For a private residential well, submit the required Notice of Intent and $70 fee before construction12.
  4. Resolve floodplain review before county permits; regulated sites may need sealed plans, and development is prohibited in the regulatory floodway26.
  5. Apply for zoning and building approval with the required plans, site information, contractor documents, and water/sewer proof or septic permit21516.
  6. If using the owner-builder exemption, appear personally, sign the application, supervise the work and record the required notice8.
  7. Schedule county inspections with at least 24 hours' notice, and have a new septic installation inspected before covering it1422.

What should you check before buying land in Calhoun County?

Make septic feasibility an early contingency: only about 30.8% of Calhoun County soils are rated free of severe limitations for a conventional drain field23. The county is about 63.2% wooded, and about 97.6% of its land has a slope of 15% or less, so parcel-level clearing, drainage and soil conditions matter more than county averages2728.

Check zoning, flood risk, legal access and subdivision history before closing. Calhoun County prohibits development in the regulatory floodway; sites in a Special Flood Hazard Area can require sealed plans and state and federal permits before county permits26. Unincorporated major and minor subdivisions are regulated, and approved final plats and covenants must be recorded29. Access rules tighten when a minor subdivision creates 6 to 8 lots, requiring a shared private drive through a recorded easement at least 40 feet wide30. A driveway onto a state highway also goes through SCDOT31.

Watch-outs

  • For a home or manufactured home on land without public or community sewer, SCDES septic approval must come before the county building permit6.
  • Calhoun County requires at least 24 hours' notice for residential inspections, which are performed Monday, Wednesday and Friday14.
  • A new septic installation must be inspected before the system is covered22.
  • No development is allowed in Calhoun County's regulatory floodway26.
  • Long-term RV living, tiny-home occupancy, accessory-dwelling rules and minimum dwelling size could not be confirmed; ask Building and Planning for a written parcel-specific answer3.

Sources

  1. Calhoun County Building and Planning (2026 county census)
  2. Zoning & Development Code Clean, quoted and re-checked
  3. Calhoun County Building and Planning Office (calhouncounty.sc.gov)
  4. Zoning & Development Code Clean, quoted and re-checked
  5. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  6. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  7. Zoning & Development Code Clean, quoted and re-checked
  8. South Carolina Code Title 40, Chapter 59, quoted and re-checked
  9. Affidavit for Farm Structure, quoted and re-checked
  10. Zoning & Development Code Clean (2026 county census)
  11. 2026 Zoning and Development Code, quoted and re-checked
  12. Private Drinking Water Wells, quoted and re-checked
  13. 2021 South Carolina Code Adoptions, quoted and re-checked
  14. Residential Plan and Inspection Guidelines, quoted and re-checked
  15. Residential Permit Submittal Requirements, quoted and re-checked
  16. Residential Permit Submittal Requirements, quoted and re-checked
  17. Building and Planning Fees, quoted and re-checked
  18. 2026 Zoning and Development Code, quoted and re-checked
  19. Zoning & Development Code, quoted and re-checked
  20. Zoning & Development Code, quoted and re-checked
  21. Zoning & Development Code, quoted and re-checked
  22. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  23. 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
  24. 2026 Zoning and Development Code, quoted and re-checked
  25. Septic Tanks - Residential, Single Home Builder, quoted and re-checked
  26. Floodplain Development Permit Application, quoted and re-checked
  27. Wooded share of land: Bolthole Index county data
  28. Share of land at 15% slope or less: Bolthole Index county data
  29. calhouncounty.sc.gov, quoted and re-checked
  30. calhouncounty.sc.gov, quoted and re-checked
  31. Engineering Directive ED-16: Driveway Entrances (South Carolina statewide rule), quoted and re-checked

Written October 9, 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.

Found land here? Start a Property Hunt →

Compared with neighboring counties

Like all 6 of its neighbors, Calhoun County requires a building permit for a home.

RuleCalhoun CountyOrangeburg CountyRichland CountySumter CountyClarendon CountyLexington CountyBamberg County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsSCDESSCDESSCDESSC DESSC DESSCDESSC Dept. of Env. Services

County locator

Calhoun County in South Carolina

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

How Calhoun County scores

Seclusion36100% ev.
Self-Sufficiency64100% ev.
Admin Boringness45100% ev.
Durability68100% ev.
Property Autonomy46100% ev.
Carry Cost83100% 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 →

$207kTypical home
0.4%Property tax
$3,395Land / acre
47.1"Annual rain
4.5% of yrsSevere drought
16.7 / yr (+13.8)Mid-century 100°F days
15.5 daysMid-century dry spell
2.19" (+4.8%)Mid-century 1-day rain
1.32×Wildfire change factor
100%Forward climate coverage
$1,653Home insurance / yr
0.5% / yrInsurance growth
2.21%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
41,980People within 30 min
4,003,983People within 2 hr
59,258Radius comparison (15 mi)
37.2People / sq mi
1.8%Federal land
97.6%Land at 15% slope or less
30.8%Soils rated "not limited" for septic (strict USDA rating)
65,101 acWorkable land screen
63.2%Wooded land
44.9 tonsBiomass / forest ac
64.3°FAvg temp

Scout Calhoun County

Camp here before you commitBook a few nights nearby on Hipcamp →Already own land here?Earn money hosting campers — get $100 when you become a Hipcamp host →

Some links are affiliate or referral links — we may earn a commission, at no cost to you.

Property hunt

Find land. Bring the promising ones back.

Search live inventory elsewhere, then cost and vet each candidate here. No copied listings, account, or paid data feed.

View your full hunt →
ZillowLand & lotsRealtor.comLand listingsLandSearchRural & vacant land

Each button opens a current land search for Calhoun County. Listing sites control their own results and filters.

Analyze a property
Add setup-cost allowances

Use rough quotes or placeholders. Blank fields count as $0.

Working estimate

—land + entered setup costs
Asking $ / acre
—
Setup allowance
—
All-in $ / acre
—

A planning estimate, not a valuation or contractor quote. The USDA benchmark includes farm land and buildings; it is context, not a parcel comp.

Before an offer

Parcel due diligence

0/8 checked

Saved properties and checklist progress stay on this device. Bolthole Index does not receive them.

Cities and towns in Calhoun 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.

Town of Cameron · Town of St. Matthews

Answers from the rulebook for Calhoun County

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

Calhoun County rules

  • InspectionsRequired

    Residential building inspections administered by Calhoun County.

    • At least 24 hours' notice is required.
    • Inspections are performed Monday, Wednesday, and Friday.
    • The guide lists sequential foundation, rough-in, framing, insulation, and final inspections.

    inspection notice: >= 24 hours

    “Calhoun County requires a 24-hour notice to perform an inspection.”
  • County-wide zoningPresent (with conditions)

    County zoning and land-development regulation in unincorporated Calhoun County.

    • The Code states that its effective date is one day following passage of new applicable zoning maps for all jurisdictions protected by the Code.
    • The Code does not apply to incorporated municipal territory.
    “The provisions of this Code shall apply to all land and improvements within the unincorporated areas of Calhoun County, South Carolina. [...] The effective date of this new Code shall be one day following the passage of new applicable zoning maps for all jurisdictions protected by this Code.”
    One more reviewed finding on this topic
    • Present — County zoning and development regulation in the unincorporated portions of Calhoun County.
      “The following zoning base districts are hereby established in the unincorporated portions of Calhoun County:”
  • Zoning districtsPublished

    Base zoning districts and the official zoning district map for the unincorporated portions of Calhoun County.

    • The code lists base districts and states that Calhoun County is divided into land-use and development districts shown on the Official Zoning Map.
    “Calhoun County is hereby divided into land use (zoning) and development districts, as shown on the Official Zoning Map for Calhoun County, which together with all explanatory matter thereon, is hereby adopted by reference and declared to be part of this chapter.”
  • Minimum lot sizeDistrict specific (with conditions)

    Residential zoning districts and residential uses governed by the Calhoun County Zoning and Development Code.

    • The cited dimensional table varies by residential housing type; conservation subdivisions may reduce the minimum lot size to 7,500 square feet when approved.
    • The table includes minimum lot sizes of 0.23 acres/10,000 square feet for single-family detached and manufactured homes, 0.18 acres/8,000 square feet for duplexes, 0.05 acres/1,800 square feet for single-family attached, and 1.00 acre/20,000 square feet for multifamily.

    single-family detached minimum lot size: 10000 square feet (0.23 acres) · manufactured-home minimum lot size: 10000 square feet (0.23 acres) · duplex minimum lot size: 8000 square feet (0.18 acres) · single-family attached minimum lot size: 1800 square feet (0.05 acres) · multifamily minimum lot size: 20000 square feet (1.00 acre)

    “Lot Size, minimum (acres) 0.23 0.23 0.18 0.05 1.00 Lot Size, minimum (Sq Ft) 10,000 10,000 8,000 1,800 20,000”
    One more reviewed finding on this topic
    • District specific (with conditions) — Residential zoning districts in unincorporated Calhoun County; values vary by district and housing type.
      “Lot Size, minimum (acres) 0.23 0.23 0.18 0.05 1.00 Lot Size, minimum (Sq Ft) 10,000 10,000 8,000 1,800 20,000 [...] The minimum lot size provided in this Section may be reduced to 7,500 sf when approved as part of a Conservation Subdivision.”
  • SetbacksDistrict specific (with conditions)

    Setbacks in county residential and other zoning districts governed by the Code.

    • The RM table varies by housing type.
    • Conservation subdivisions may use 20-foot front and 5-foot side and rear setbacks when approved.
    • Collector and arterial roads may require additional front setbacks in other districts.

    RM detached front setback: 30 feet · RM detached side setback: 8 feet · RM detached rear setback: 20 feet · RM conservation-subdivision front setback: 20 feet · RM conservation-subdivision side/rear setback: 5 feet

    “Front Setback (ft) [1] 30 30 30 20 [2] 30 Side Setback (ft) 8 8 8 15[3] 20 Rear Setback (ft) 20 20 20 20 20 [...] Setbacks for Conservation Subdivisions are as follows: 1. Front: 20 feet 2. Side: 5 Feet 3. Rear: 5 Feet”
    One more reviewed finding on this topic
    • Specified — Building setbacks in Calhoun County zoning districts.
      “Front Setback (ft) 150 Side Setback (ft) 50 Rear Setback (ft) 25 Maximum Building Height (ft) 35”
  • Lot coverageDistrict specific (with conditions)

    Maximum impervious-surface or lot-coverage controls in county zoning districts.

    • In the RM table, maximum impervious surface varies by housing type.
    • The manufactured-home column is 20 percent, not 25 percent.
    • Other districts have different percentages.

    RM detached single-family maximum impervious surface: 25 percent · RM manufactured-home maximum impervious surface: 20 percent · RM multifamily maximum impervious surface: 60 percent

    “Maximum Impervious Surface, percent 25 20 25 80 60”
    One more reviewed finding on this topic
    • Specified — Maximum impervious-surface or lot-coverage standards in county zoning districts.
      “Maximum Impervious Surface, percent 12% [...] Maximum Impervious Surface, percent 8%”
  • Building heightDistrict specific (with conditions)

    Maximum building-height controls in county zoning districts.

    • The RM table varies by housing type.
    • Multifamily structures are limited to two stories.
    • Other zoning districts have different height standards.

    RM detached single-family maximum height: 35 feet · RM multifamily maximum height: 40 feet (multifamily structures limited to 2 stories)

    “Maximum Building Height (ft) 35 35 35 35 40[2] [...] [2] Multifamily structures are limited to 2 stories.”
    One more reviewed finding on this topic
    • Specified — Maximum building heights in county zoning districts.
      “Maximum Building Height (ft) 35 [...] Maximum Building Height (ft) 40 [...] Maximum height for agricultural structures such as silos and grain elevators is 100 feet.”
  • Camping on your landLimited

    Retreat centers or vacation camps in the unincorporated portions of Calhoun County.

    • Board of Zoning Appeals approval is required before a zoning permit may be issued.
    “The following list of uses require approval of the Board of Zoning Appeals before a zoning permit is issued. [...] F. Retreat Center or Vacation Camp”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes and manufactured-home parks in the unincorporated portions of Calhoun County.

    • Manufactured and mobile homes must comply with the South Carolina Uniform Standards Code for Manufactured Housing and Chapter 79 of the South Carolina Code of Regulations.
    • Newly installed manufactured homes are subject to all county building and planning permit and inspection requirements before occupancy.
    • Manufactured-home parks require at least five acres, 10,000 square feet per pad, maximum density of two units per gross acre or four units per gross acre if public sewer is available, 50-foot perimeter setbacks, 50-foot unit separation, and an all-weather driveway.

    minimum manufactured-home park size: >= 5 acres · minimum pad site size: >= 10000 square feet · maximum density without public sewer: <= 2 units per gross acre · maximum density with public sewer: <= 4 units per gross acre

    “Inspections. Newly installed manufactured home shall be subject to all permit and inspection requirements of county building and planning department prior to occupancy.”
  • Mandatory utility hookupConditional

    Residential permit submissions requiring proof of public water and sewer availability or septic documentation.

    • The official submittal checklist accepts proof of water and sewer availability or a septic tank permit.
    • The cited source does not establish a universal countywide mandate to connect to public utilities.
    “Proof of Water & Sewer availability or Septic Tank permit from SCDHEC.”
  • Agricultural exemptionConditional

    Farm structures other than residences or structures attached to residences.

    • The owner must file an affidavit before construction stating the structure is a farm-use structure and including its purpose or intended use.
    • The exemption does not apply to a structure later converted to another use.
    • FEMA National Flood Insurance Program standards still apply.
    • The county may still issue building permits.
    • Electrical permits are administered separately.
    • County ordinances and SCDES requirements must be met before permits are issued.
    “The provisions of this section do not apply unless before constructing a farm structure the person owning the property [...] files an affidavit”
  • Subdividing landRegulated (with conditions)

    Major and minor subdivisions in the unincorporated portions of Calhoun County.

    • Major subdivision rules apply to nine or more lots, or subdivisions involving a new street/right-of-way, public water or sewer extension, or drainage improvements; minor subdivisions generally cover eight or fewer lots without those improvements.
    • Minor subdivisions of five lots or fewer may use direct access from an existing public road; six-to-eight-lot minor subdivisions require a shared private drive and a recorded ingress-egress easement at least 40 feet wide.
    • Final subdivision plats and covenants must be recorded with the Register of Deeds after approval.

    major subdivision threshold: >= 9 lots (Also applies to specified new streets, water/sewer extensions, or drainage improvements) · minor subdivision upper threshold: <= 8 lots (No new street/right-of-way, public water/sewer extension, or shared stormwater improvement)

    “This section applies to all Major Subdivisions that result in nine (9) or more lots or any subdivision of land that includes the construction of new street or new right of way, extension of a public water or sewer system or the installation of drainage improvement to facilitate residential lot construction.”
  • Driveway accessLimited

    Access for lots in minor subdivisions and RV parks in the unincorporated portions of Calhoun County.

    • Minor subdivisions creating five lots or fewer may access individual lots directly from an existing public road via private driveway.
    • When six to eight lots are created, access must be by a shared private drive through a legal recorded ingress-egress easement at least 40 feet wide; no more than five direct private drives may access a public road.
    • Subdivisions with 50 or more lots require two street-access points, with one additional point for each additional 100 lots.

    shared private drive minimum easement width: >= 40 feet (For six-to-eight-lot minor subdivisions) · additional subdivision access threshold: >= 50 lots (Two access points required)

    “Minor Subdivisions creating five (5) lots or less may access individual lots directly from existing public road via private driveway. When 6-8 lots are created, access shall be provided via a shared private drive by means of a legal and duly recorded ingress-egress easement, a minimum of 40 feet in width.”
  • Building in a floodplainRequired

    Development and construction in or immediately adjacent to Calhoun County floodplains and Special Flood Hazard Areas.

    • Applications require a signed application, professional engineer or registered land surveyor seal and signature, and two site-plan copies.
    • Lowest floor and utilities must generally be at least two feet above established BFE where BFE data exists.
    • Elevation or floodproofing certificates and engineering certification may be required.
    • No development is allowed in the regulatory floodway.
    • State and federal permits must precede county permits in the Special Flood Hazard Area.

    minimum elevation above BFE: >= 2 feet (where BFE data is provided)

    “No development is allowed in the regulatory floodway.”
    One more reviewed finding on this topic
    • Required — Development in or immediately adjacent to Calhoun County floodplains and Special Flood Hazard Areas.
      “Where base flood elevation (BFE) data is provided, the lowest floor elevation (including basement floor) must be at least (2) feet above the established BFE. [...] No development is allowed in the regulatory floodway. [...] No Floodplain Development or Building Permit will be issued without the above written requirements.”
  • Permit feesPublished (with conditions)

    County building, sign, demolition, zoning, plan-review, inspection, electrical, and manufactured-home permits and related fees.

    • Building, sign, and demolition permit fees vary by project valuation.
    • Commercial plan review is 25% of the permit fee.
    • Residential plan review is 10% of the permit fee.
    • Permit refund fee is 25% of the permit fee.
    • Project valuation is computed using the latest International Code Council Building Valuation Table.

    building/sign/demolition permit fee for project valuation $0-$10,000: 50 USD · building/sign/demolition permit fee for project valuation $10,001-$100,000: $50.00 plus $5.00 per thousand USD · building/sign/demolition permit fee for project valuation $100,001-$500,000: $500.00 plus $4.00 per thousand USD · building/sign/demolition permit fee for project valuation over $500,000: $2,100.00 plus $3.00 per thousand USD · residential plan review fee: 10 percent of permit fee · commercial plan review fee: 25 percent of permit fee · re-inspection fee: 50 USD · electrical permit: 50 USD · manufactured home single-wide permit: 250 USD · manufactured home multi-wide permit: 350 USD

    “Building, Sign, and Demolition Permits: $0.00 - $10,000.00 $50.00 $10,001.00 - $100,000.00 $50.00 plus $5.00 per thousand $100,001.00 - $500,000.00 $500.00 plus $4.00 per thousand Over $500,000.00 $2,100.00 plus $3.00 per thousand Commercial Plan Review Fee 25% of Permit Fee Residential Plan Review Fee 10% of Permit Fee Permit Refund Fee 25% of Permit Fee Re-Inspection Fee $50.00 Electrical Permit $50.00 Manufactured Home: Single Wide $250.00 Multi Wide $350.00”
  • Permit processPartial

    Residential building-permit submission and inspection process.

    • Submit a complete permit application, scaled plans, energy-code documentation, HVAC documentation, site plan, water/sewer proof or septic permit, address verification, zoning approval, licensing documents, and contractor information.
    • Additional items may be required by the Building Official.
    “Proof of Water & Sewer availability or Septic Tank permit from SCDHEC. [...] 911 Address Verification from Calhoun County. [...] Zoning approval.”
    One more reviewed finding on this topic
    • Partial — County zoning, building, floodplain, and subdivision permit processes documented by Calhoun County.
      “No building, sign or structure shall be erected, moved, enlarged, altered or demolished without a zoning permit issued by the Zoning Administrator. [...] One copy of the plans shall be returned to the applicant with the signed approval or disapproval of the Zoning Administrator noted on the copy within thirty days.”

South Carolina rules that apply here

  • Building permitLimited

    Construction regulated by South Carolina building-code law, with permits issued and administered by the applicable county or municipal building authority.

    • Each county must place its unincorporated area under a building official's jurisdiction, and each municipality must provide a building official within municipal limits.
    • Municipalities and counties may establish agreements with other governmental entities to issue permits and enforce building codes.
    • A municipality or county may submit an affidavit and become exempt from the chapter's service requirements when it cannot arrange services within the recommended fee schedule; the exemption lasts until financially feasible or five years, whichever is less, and may be renewed at five-year intervals.
    • South Carolina law contains specific permit exemptions, including certain owner-performed residential improvements under S.C. Code Ann. § 40-59-265 and wheelchair ramps built with Medicare or Medicaid dollars when performed, overseen, or inspected by an ADA inspector.
    • The South Carolina Building Codes Council states that the 2021 South Carolina Building Codes had an effective date of January 1, 2023; later code editions and local modifications may apply.
    “Municipalities and counties may establish agreements with other governmental entities of the State to issue permits and enforce building codes in order to provide the services required by this chapter.”
    One more reviewed finding on this topic
    • Required — Construction of a home or placement of a manufactured home in Calhoun County on property without public or community sewer where a septic system is required.
      “Without this permit, your county will not be able to issue you a building permit.”
  • 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.”
    3 more reviewed findings on this topic
    • Available (with conditions) — Owner-builder residential construction in Calhoun County under S.C. Code §40-59-260.
      “This chapter does not apply to an owner of residential property who improves the property”
    • Conditional — Owner-builder exemption for residential property in Calhoun County.
      “This chapter does not apply to an owner of residential property who improves the property or who builds or improves structures”
    • 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:”
  • Building code adoptedAdopted

    Statewide adoption and enforcement framework for building, residential, gas, plumbing, mechanical, fire, energy, electrical, and related construction codes, including residential construction in county unincorporated areas.

    • The South Carolina Building Codes Council must adopt by reference and amend only the latest editions of the listed nationally recognized codes.
    • Code appendices may be adopted as needed, but the specific appendix or appendices must be referenced by name or letter designation at adoption.
    • Provisions concerning the qualification, removal, dismissal, duties, responsibilities, and administrative procedures of building officials and inspectors do not apply unless adopted by the municipal or county governing body.
    • Counties and municipalities must enforce only the national building and safety codes provided in Chapter 9.
    • The Council must promulgate regulations for building-code provisions affecting one-family or two-family dwellings, and those provisions are not enforceable until the required regulations become effective.
    • A regulation mandating automatic residential fire sprinklers in one-family or two-family dwellings could not become effective before July 1, 2015.
    • Section 501.3 of the 2012 International Residential Code must not be enforced.
    • A county may not enforce the portion of an adopted nationally recognized fire-prevention code regulating outdoor burning for forestry, wildlife, and agricultural purposes as regulated by the South Carolina Forestry Commission.

    residential fire sprinkler regulation earliest effective date: >= 2015-07-01 (One-family and two-family dwellings)

    “The council shall adopt by reference and amend only the latest editions of the following nationally recognized codes and the standards referenced in those codes for regulation of construction within this State: building, residential, gas, plumbing, mechanical, fire, and energy codes as promulgated, published, or made available by the International Code Council, Inc. and the National Electrical Code as published by the National Fire Protection Association.”
    3 more reviewed findings on this topic
    • Adopted (with conditions) — Mandatory South Carolina building codes enforced by counties and municipalities, including Calhoun County.
      “The Council established the implementation date for local jurisdictions as January 1, 2023.”
    • Adopted (with conditions) — Mandatory South Carolina building codes and statewide modifications enforced by South Carolina counties and municipalities.
      “The South Carolina Building Codes Council adopted the 2021 South Carolina Building Codes at their meeting on October 6, 2021. The Council approved an effective date of January 1, 2023.”
    • Adopted (with conditions) — The 2024 editions of the mandatory South Carolina building, residential, fire, plumbing, mechanical, fuel gas, and electrical codes adopted for statewide use.
      “On August 26, 2025, the South Carolina Building Codes Council (the “Council”) adopted the latest editions of the mandatory codes and select appendices with modifications, as referenced in S.C. Code Ann. §6-9-50 (1976, as amended), to be enforced by all municipalities and counties in South Carolina. [...] The Council established the implementation date for local jurisdictions as January 1, 2027.”
  • Who permits septicState

    Onsite wastewater permitting and inspection for Calhoun County.

    • SCDES administers the septic permit and inspection process; local ordinances may add inspection requirements.
    “the SCDES inspector will issue a permit to construct.”
    2 more reviewed findings on this topic
    • State (with conditions) — On-site wastewater approval, permitting, and inspection by SCDES in Calhoun 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

    New, upgraded, or expanded onsite wastewater systems, including residential septic systems, in Calhoun County where public or community sewer is unavailable.

    • SCDES approval and a permit to install a septic system are required before construction of a home or placement of a manufactured home on property not served by public or community sewer.
    • The property owner must obtain a permit to construct and operate the system before construction and operation.
    • No person may begin construction of a dwelling, business, or other structure to be served by an onsite wastewater system until SCDES issues the permit to construct and operate the system; mobile or modular structures intended for occupancy may not be moved onto the site before issuance.
    • The Permit to Construct is valid for five years; renewal or approved changes require a new application and payment of the fee again.
    • The SCDES Sandhills regional division serves Calhoun County. The official permit-process flyer lists Sandhills contacts 803-896-0620, 803-533-5490, and 843-661-4825; the organizational chart identifies the Sandhills OSWW coverage as including Calhoun.
    • A $150 site-evaluation/application fee applies under Regulation 61-56. The regulation allows case-by-case variances or exemptions where the stated health, environmental, and site-feasibility findings are met.

    site evaluation fee: 150 USD · Permit to Construct validity: 5 years (Renewal or modifications require a new application and payment of the fee again) · Sandhills regional office contact: 803-896-0620; 803-533-5490; 843-661-4825 (The permit-process flyer lists these contacts for the Sandhills division, which includes Calhoun County)

    “Because incorrectly installed septic systems can harm water quality and make people sick, 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.”
    3 more reviewed findings on this topic
    • Required — Homes and manufactured homes on property not served by public or community sewer.
      “Without this permit, your county will not be able to issue you a building permit. [...] Application Fee: $150 [...] Permit Expiration and Modifications: Permits to Construct are good for five years.”
    • Required — New homes or manufactured homes in Calhoun County on property not served by public or community sewer.
      “South Carolina law requires site approvals and permits for all septic systems.”
    • 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 inspectionLimited

    New septic installations and existing-system inspections in Calhoun County.

    • Before a new septic installation is covered, the installer must schedule SCDES inspection.
    • If the SCDES inspector does not arrive within 30 minutes, a licensed installer may self-inspect using form D-4432.
    • Existing systems generally do not require regular inspection under state law, but local ordinances may require it.
    • A new home using septic requires inspection as part of the permitting process.

    inspector waiting period: 30 minutes (licensed installer may proceed with self-inspection)

    “S.C. law does not require property owners to have existing systems inspected”
    2 more reviewed findings on this topic
    • Required — New septic-system installations in Calhoun County.
      “the SCDES inspector will return to the site to inspect the septic system 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 Calhoun County.
      “Prior to construction of any individual residential well or irrigation well, a Notice of Intent (NOI)”
  • 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.

  • Certificate of occupancy — Certificate-of-occupancy requirements in Calhoun County.
  • Minimum dwelling size — Minimum dwelling size in Calhoun County.
  • Tiny homes — Tiny-home occupancy in Calhoun County.
  • Accessory dwellings — Accessory dwelling units in Calhoun County.
  • Short-term rentals — Short-term rentals in Calhoun 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 Calhoun 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 Calhoun County, South Carolina

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

Calhoun County scores 61/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and mixed durability signals. Watch-outs: about 41,980 people within a 30-minute drive.

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

Calhoun County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by South Carolina Department of Environmental Services (SCDES), Onsite Wastewater program (formerly SC DHEC). 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 Calhoun County, South Carolina?

Land in Calhoun County runs about $3,395 per acre, based on the latest county data.

What is the water situation in Calhoun County?

Calhoun County gets about 47.1" of rain a year, with severe drought in roughly 4.5% of years. On water rights, Calhoun County lies in the Western South Carolina Capacity Use Area — Designated 2018 after declining aquifer levels; permit required >=3 MG/month. A new single-family domestic well is exempt..

How remote is Calhoun County?

A representative private-land location has about 41,980 people within a 30-minute drive and 4,003,983 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 Calhoun compares in South Carolina

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