Unincorporated Marlboro County

Building permit required for any construction, addition, or renovation greater than $2,000 in valuation or that requires an inspection.

• Exempt One-story detached accessory structures 200 sq. ft. or less
• Exempt Leak repairs in drain, water, soil, waste, or vent pipes (if no replacement or rearrangement of components)
• Exempt Clearing stoppages or repairs to pipes, valves, or fixtures (if no replacement or rearrangement)

Note: Owner-builder exemption applies only to primary residence owner-occupied property. Property cannot be sold or rented within 2 years of completion (violation revokes exemption). Owner must file notice with Register of Deeds.

Building code

2021 South Carolina Building Codes (based on 2021 IBC/IRC with SC amendments, effective January 1, 2023)

Owner-builder

Homeowner may self-perform work only if property owner and primary residence. Property cannot be sold or rented within 2 years of owner-completion. Owner must personally appear and sign building permit application. Must file notice with Register of Deeds stating building was constructed by owner as unlicensed builder.

Contractor requirements

Contractors must hold a valid, current, and bonded SC Contractor License. License verification required at time of permit application. Expired or lapsed licenses delay or prevent permit issuance.

Source: Marlboro County Planning and Building Services ↗

1. 01
   Submit all required documentation and payment in person at Marlboro County Courthouse or by mail.
2. 02
   County staff reviews plans for code compliance with 2021 South Carolina Building Codes.
3. 03
   For on-site wastewater systems, DHEC septic permit must be obtained before county building permit can be issued.
4. 04
   Approval issued as building permit with permit number and work authorization.
5. 05
   Contractor must present current SC Contractor's License and identification card.
6. 06
   For owner-builder work, homeowner must file affidavit with Clerk of Court Office.

Typical processing time: Variable; contact county for current processing times

Source: Marlboro County Planning and Building Services ↗

Payment methods accepted: cash, credit card, check (payable to Marlboro County). No surcharge noted in research.

• (843) 479-5602 ext. 13 (phone)

Scheduling deadline

24-hour advance notice required

Inspection hours

Monday–Friday, 8:30 AM–5:00 PM

Typical sequence: Required inspection points: Footings (after excavation and before concrete placement), Foundation/Floor (foundation walls, piers, rim/band joists, floor joists, tie-downs before sub-flooring), Framing (after roof, framing, fire-stopping, draft-stopping, and bracing complete), Building Sewer & DWV Systems (no evidence of leakage; slab floors with plumbing tested before slab pour), Final Inspection (required before building occupancy or use).

Source: Marlboro County Planning and Building Services ↗