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When a permit is required
Permit triggers and exempt work for Union
A building permit is required for construction, enlargement, alteration, repair, movement, or demolition of buildings or structures, and for installation or modification of electrical, gas, mechanical, or plumbing systems.
Note: Consult the City's zoning and planning ordinances or contact the Planning Department directly for local exemptions and special provisions.
- Building code
- South Carolina Building Code 2021 (based on IBC 2021)
- Owner-builder
- South Carolina law allows property owners to build or improve on one-family or two-family residences if work is not offered for sale or rent for two years following construction, owner supervises construction directly (with licensed contractors for specialty trades), and owner files a notice with the register of deeds after construction.
- Contractor requirements
- Licensed contractors required for specialty trades; commercial work over $10,000 requires SC Contractor's Licensing Board license.
Application process
Typical processing: 5-10 business days
- 01 Access Building Permit forms and resources at www.cityofunion.net/documents (Planning Department/Permitting section).
- 02 Submit permit application to the City Planning/Building Department in person or by mail.
- 03 City staff reviews application for compliance with South Carolina Building Code (2021 edition) and City of Union zoning and development ordinances.
- 04 Obtain zoning approval if required (conditional use, variance, etc.).
- 05 Schedule inspections at key construction phases.
- 06 Obtain Certificate of Occupancy upon final inspection approval.
Typical processing time: 5-10 business days
Required inspections
Scheduling and sequence
- (864) 429-1700 (phone)
Typical sequence: Residential inspection procedures follow the SC Building Code framework: foundation/footing, framing, mechanical/electrical/plumbing rough-in, final/Certificate of Occupancy.
Frequently asked
Common questions about Union permits
01 Do I need a building permit in Union, SC? ▸
02 How do I apply for a building permit in Union, SC? ▸
03 How long does it take to get a building permit in Union, SC? ▸
04 How do I schedule a building inspection in Union, SC? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with City of Union Planning/Building Department before applying. Jaspector is not legal advice.