Lexington County, SC Building Safety: Plumbing Permits (2026)
Key Facts
- Permit required before
- installing/altering plumbing systems
- Adopted code
- International Plumbing Code, ch. 1
- Issuing authority
- County building official
- No-permit exemption
- minor leak stops, stoppage clearing
- Late-start penalty
- added fee per county council schedule
Summary
Lexington County requires a permit before installing, altering, or replacing any plumbing system regulated under its adopted International Plumbing Code.
Any owner, contractor, or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be done, shall first make application to the building official and obtain the required permit.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 20).
Full Breakdown
Under the county's Building Code Ordinance, anyone who intends to erect, install, enlarge, alter, repair, remove, convert, or replace a plumbing system covered by the code must first apply to the building official and obtain a permit before work begins. The International Plumbing Code, including chapter 1, is separately adopted to govern installation, alteration, repair, and replacement of plumbing systems, fixtures, and appurtenances connected to water or sewage service. Narrow exemptions exist only for stopping minor leaks or clearing stoppages that don't involve replacing pipes, valves, or fixtures.
Violations & Fines
Starting plumbing work without a permit triggers an additional fee set by county council on top of the required permit fees, and work must still pass rough-in and final inspections.
Frequently Asked Questions
Do I need a permit to replace a water heater or repipe a bathroom in Lexington County?
Can I fix a leaky pipe myself without a permit?
Sources & Official References
Other rules in Lexington County
Compare Lexington County to another location·View the South Carolina building safety overview
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