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When a permit is required
Permit triggers and exempt work for Colleton County
A building permit is required for all construction within unincorporated Colleton County. Certain activities (e.g., coastal critical area modifications, floodplain development) may also require state/federal approvals.
- Completed building permit application form
- Proof of ownership or builder/owner authorization letter
- Detailed construction plans including site plan with building footprint
- Electrical, plumbing, mechanical, and fire protection plans as required by code
- Zoning Compliance Certificate
- SCDHEC Permit to Construct for septic systems or paid sewer tap receipt
- For coastal activities: OCRM Critical Area Permit if applicable
- NPDES Stormwater Construction Permit if land disturbance exceeds 1 acre
- Building code
- 2021 South Carolina Building Code (based on IBC 2021 with SC amendments) and 2021 South Carolina Residential Code (based on IRC 2021 with SC amendments)
- Permit validity
- Permits are typically valid for 12 months. Extensions may be available if work is actively proceeding. Verify validity period with Planning and Development.
- Contractor requirements
- Contractors performing work exceeding $10,000 must hold a valid South Carolina Contractor's License from SC LLR with appropriate bonding ($40,000-$500,000 depending on classification). General, electrical, and plumbing work must be performed by licensed contractors.
Application process
Typical processing: 10-15 business days for plan review and permit issuance, subject to completeness of application and clarity of plans.
- 01 Obtain Zoning Compliance Certificate to verify the proposed use is permitted in the zoning district.
- 02 Prepare application materials: completed building permit application form, proof of ownership or authorization letter, detailed construction plans including site plan with footprint, and copies of electrical, plumbing, mechanical plans as required.
- 03 For septic systems: Obtain SCDHEC Permit to Construct or paid sewer tap receipt before building permit can be issued.
- 04 Submit all required documents by mail to Colleton County Planning and Development Department at 31 Klein Street, Suite 300, Walterboro, SC 29488.
- 05 County staff reviews application for code compliance (typically 10-15 business days).
- 06 Once approved, permit is issued and construction may begin.
- 07 Schedule and pass required inspections at code-specified stages (footing/foundation, framing, rough-in, insulation/drywall, final).
- 08 Obtain Certificate of Occupancy following final inspection approval.
Typical processing time: 10-15 business days for plan review and permit issuance, subject to completeness of application and clarity of plans.
Source: Colleton County Planning and Development Department ↗
Required inspections
Scheduling and sequence
- 843-549-1709 (phone)
- Inspection hours
- Monday-Friday, 9:00 AM-5:00 PM
Typical sequence: Standard sequence: Footing/Foundation (before concrete pour), Framing (after roof and framing complete), Rough-In (electrical, plumbing, mechanical before drywall), Insulation and Drywall, Final Inspection (all work complete).
Source: Colleton County Planning and Development Department ↗
Frequently asked
Common questions about unincorporated Colleton County permits
01 Do I need a building permit in unincorporated Colleton County, SC? ▸
02 How do I apply for a building permit in unincorporated Colleton County, SC? ▸
03 How long does it take to get a building permit in unincorporated Colleton County, SC? ▸
04 How do I schedule a building inspection in unincorporated Colleton County, SC? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Colleton County Planning and Development Department before applying. Jaspector is not legal advice.