Bathroom Remodel Permit in Lexington, SC (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

A full bathroom remodel in Lexington requires a building permit if you're relocating plumbing fixtures, adding electrical circuits, installing a new exhaust fan, converting a tub to shower, or moving walls. Surface-only work (tile, vanity replacement in place, faucet swap) is exempt.

Lexington's Building Department follows the South Carolina Building Code, which is based on the 2015 IBC—but Lexington has its own online permit portal and a more streamlined over-the-counter review process for standard bathroom remodels than some neighboring jurisdictions. Unlike Columbia or Charleston, which have stricter historic-district overlays and stormwater review lanes, Lexington's bathroom permit path is usually straightforward: submit plans showing plumbing fixture locations, electrical GFCI layout, exhaust fan duct termination, and waterproofing assembly if you're doing a tub-to-shower conversion. The City of Lexington Building Department typically turnaround standard bathroom remodels in 2-3 weeks for plan review. South Carolina's owner-builder exemption (SC Code § 40-11-360) lets you pull permits on your own home without a contractor license, which is a key advantage if you're planning to do some of the work yourself—but you still need the permit before you start. Lead-paint disclosure and testing apply to any pre-1978 home, which is common in Lexington's older neighborhoods.

What happens if you skip the permit (and you needed one)

Stop-work orders cost $250–$500 in fines plus mandatory permit re-filing at double the standard fee ($400–$1,600 total depending on project scope).
Insurance claims on water damage from unpermitted plumbing work are routinely denied; remediation can run $5,000–$50,000 for mold or structural damage.
Selling your home triggers a title search that flags unpermitted work; you'll owe back permit fees plus fines ($800–$2,000) or face a required remediation inspection before closing.
Banks and refinance lenders pull permit records; undisclosed bathroom remodels can kill a refi or require a costly correction affidavit ($1,500–$3,000).

Lexington, SC bathroom remodel permits — the key details

Lexington requires a building permit for any bathroom remodel that involves relocation of plumbing fixtures, addition of electrical circuits, installation or replacement of an exhaust fan with new ductwork, conversion of a tub to a shower (or vice versa), or removal/relocation of walls. The South Carolina Building Code, which Lexington has adopted, references the 2015 International Building Code and International Plumbing Code. Per IRC P2706, all drainage fittings must be accessible and properly sloped (typically 1/4 inch per foot minimum). If you're just replacing a toilet, vanity, or faucet in the existing location without touching the supply lines or drain, no permit is required—that's considered maintenance. The distinction matters: a new double-vanity that extends the existing wall plumbing gets a permit; swapping out the old vanity for an identical one does not.

Electrical work in bathrooms triggers GFCI (ground-fault circuit-interrupter) and AFCI (arc-fault circuit-interrupter) requirements under the South Carolina Building Code (adopting NEC 210.8). All bathroom outlets within 6 feet of a sink must be GFCI-protected, and if you're adding a new circuit or modifying the existing electrical, you must show this on your permit plan. Many homeowners and unlicensed contractors miss this step and get their rough-electrical inspection red-tagged, adding 1-2 weeks to the timeline. If you're adding a new exhaust fan or replacing an existing one with a larger capacity unit, the duct termination must be shown on the plan, and it must exhaust to the exterior (not into the attic or crawl space, per IRC M1505). Lexington's Building Department staff will flag missing duct termination details during plan review and ask for clarification before issuing the permit.

Waterproofing for shower or tub enclosures is governed by IRC R702.4.2 and South Carolina's adoption thereof. If you're converting a tub to a shower or creating a new shower, you must specify the waterproofing assembly: typically cement board or fiber-cement backer board plus a liquid or membrane waterproofer, sealed at all seams and penetrations. The plan must show the membrane detail at corners, the curb, and any niche shelving. Inspectors will verify this during the rough framing and waterproofing rough-in inspection before tile goes up; if the membrane is incomplete or improperly sealed, you'll be asked to correct it before the final inspection. This is one of the most common failure points in Lexington bathroom permits—homeowners sometimes think a good grout job is enough waterproofing, but code requires a primary moisture barrier underneath.

Plumbing fixture relocation carries specific code constraints. If you're moving the toilet, sink, or shower, the drain trap arm (the horizontal section of pipe from the fixture to the vent stack) cannot exceed 6 feet in length per IRC P3201.7, and the slope must be maintained at 1/4 inch per foot. If your existing stack is far from the new fixture location, you may need a new vent line or a wet vent configuration, which increases cost and complexity. Lexington's Building Department requires a licensed plumber or engineer to sign the plumbing plan if any relocation or new drain line is involved; owner-builders can pull the permit but typically hire a plumber to design and execute the work. Supply line sizing also matters: the main hot and cold lines must be sized according to fixture demand, and mixing valves on tub/shower combos must be pressure-balanced or thermostatic per plumbing code. The Lexington permit plan should note the valve type and compliance standard.

Lead-paint disclosure applies to any home built before 1978 in Lexington. If you're disturbing painted surfaces (sanding, demolition of walls or tile), you must provide a lead-hazard disclosure and, in many cases, hire a certified lead-abatement contractor or follow EPA RRP (Renovation, Repair, and Painting) rules. This is not part of the building permit but is a federal and South Carolina requirement tied to the permit work. Failure to comply can result in EPA fines of $5,000–$16,000 per violation. The City of Lexington Building Department will ask to see evidence of lead disclosure or RRP certification before issuing final approval, particularly on older homes in neighborhoods like Sunset Park or Downtown Lexington. Budget for lead testing ($300–$600) and potential containment or professional abatement ($2,000–$8,000) if your home is pre-1978.

Three Lexington bathroom remodel (full) scenarios

Scenario A

Vanity and tile refresh, same location, no plumbing changes — 1960s ranch home, Sunset Park neighborhood

You're keeping the existing toilet and replacing the vanity with a new unit that has the same rough-in dimensions (sink drains to the same trap, supply lines connect in place). You're also removing the old tile and installing new tile on the existing walls, and replacing the light fixture above the vanity. This is surface-level work: no plumbing relocation, no new electrical circuits (the light fixture box stays in the same spot), and no structural changes. Per Lexington's permit thresholds, this is classified as maintenance or cosmetic repair and does not require a building permit. You do not need to file with the City of Lexington Building Department. You can proceed directly with purchasing materials and hiring a handyman or tile contractor. However, if your home was built before 1978, you must still follow EPA lead-safe practices (wet-wiping, containment) when demolishing the old tile, and provide lead disclosure documentation to anyone you hire. Estimated timeline: 2-4 weeks of work, zero permit fees.

No permit required (fixture-in-place only) | Lead disclosure required (pre-1978 homes) | Typical cost $3,000–$8,000 (materials and labor, no permit fees)

Scenario B

Double vanity installation with new drain line and GFCI circuit — Lexington Heights, newer construction

You're removing a single vanity and installing a double vanity that extends 3 feet to the left, requiring a new drain line and a new hot-water supply branch. The existing electrical outlet is 8 feet from the sink; you want to add a new GFCI outlet closer to the new vanity. This is a plumbing relocation (new drain with its own trap, new supply branch) plus a new electrical circuit. You must pull a permit from the City of Lexington Building Department. Your plan must show the new drain line slope, trap location, and vent connection (either a new vent line or a wet-vent from an existing stack—your plumber designs this). The electrical plan must show the new GFCI outlet location within 6 feet of the sink, the circuit breaker source, and AFCI protection on the circuit if it's a new 20-amp circuit serving bathroom outlets. Submit plans to the Lexington Building Department via their online portal or in person; expect 2-3 weeks for plan review. Once approved, the permit fee is typically $300–$600 based on the project valuation ($10,000–$15,000 for materials and labor). Schedule a rough plumbing and rough electrical inspection before you cover the walls with drywall. Your plumber must pull a separate plumber's license permit if they're not already registered with the city (South Carolina requires plumbers to be licensed, but the contractor license is handled separately from the building permit). Estimated timeline: 3-5 weeks permit plus inspections, then final finish.

Permit required (fixture relocation, new circuit) | Licensed plumber required | $300–$600 permit fee | Rough plumbing and electrical inspections | $12,000–$18,000 total project cost

Scenario C

Tub-to-shower conversion with new waterproofing, relocated exhaust fan — Historic Downtown Lexington, 1920s colonial

Your 1920s home has a cast-iron tub; you want to remove it and pour a new concrete shower pan with a glass enclosure. The existing exhaust fan is mounted on the wall above the tub, but you want to relocate it to the ceiling and run new ductwork through the attic to a roof termination. This is a waterproofing assembly change (IRC R702.4.2) plus an exhaust fan relocation. You must pull a building permit. Your plan must detail the new waterproofing system: cement board or fiber-cement substrate, liquid membrane or sheet membrane fully sealed at all seams, corners, and the curb. You must also show the new exhaust ductwork from the ceiling-mounted fan to the roof termination, sized for the fan CFM rating (typically 50-100 CFM for a bathroom; Lexington follows IRC M1505). The permit application should note the home's pre-1978 construction and your lead-hazard disclosure. The plumbing rough-in plan must show the new drain line (the existing tub drain may not align with the shower pan, so a new trap and line are likely required). Submit the permit to the City of Lexington Building Department; plan review is 2-3 weeks. Permit fee: $400–$700 (higher due to the structural/waterproofing complexity). Inspections: rough framing, waterproofing (membrane must be fully sealed before tile is installed), rough plumbing, rough electrical (if the exhaust fan is new-circuit), and final. The timeline stretches to 6-8 weeks due to the waterproofing inspection requirement and the need to cure the concrete pan before tiling. Lead-paint containment is mandatory for demolition of the tub surround and wall disturbance; budget an extra $3,000–$5,000 for certified abatement or EPA RRP contractor oversight.

Every project is different.

Get your exact answer →

Takes 60 seconds · Personalized to your address

Lexington's permit portal and the over-the-counter review advantage

Lexington, South Carolina offers an online permit portal that streamlines bathroom remodel submissions compared to some neighboring South Carolina cities. You can upload your plans electronically and receive feedback within 2-3 weeks in most cases, rather than waiting for in-person counter reviews or mail-in responses. This speed matters: if you find out on day 28 that your exhaust duct termination detail is missing, you can resubmit the same day and get a revised approval within a few business days. Many homeowners underestimate how much time permit delays add to a project schedule.

The City of Lexington Building Department staff are generally familiar with standard bathroom remodels and don't typically ask for over-engineered plans unless there are unusual circumstances (very long drain runs, multiple stacks involved, tight spaces requiring creative vent routing). A simple double-vanity with a new drain line and GFCI circuit usually passes plan review with no iterations. For more complex work—like a tub-to-shower conversion in a 1920s home with existing plumbing constraints—having a licensed plumber or engineer prepare the plans upfront reduces back-and-forth.

The portal also tracks inspection scheduling, so you can book your rough plumbing and electrical inspections as soon as the permit is issued. This prevents the common scenario where you've done all the rough-in work and then have to wait weeks for an inspection slot because the city is backlogged. Lexington's typical inspection turnaround is 3-5 business days; book early in the week to avoid Friday delays.

South Carolina owner-builder exemption and when you need a licensed contractor

South Carolina Code § 40-11-360 allows owner-builders to pull permits and perform work on their own residential property without a contractor license. This applies to full bathroom remodels: you can legally pull the permit yourself and hire subcontractors (plumber, electrician, tile installer) as needed. However, there are boundaries. The plumbing work must be performed by a licensed South Carolina plumber (licensed at the state level through the SC Board of Examiners for Plumbers), and the electrical rough-in must be performed by a licensed electrician or you (if you are the owner and the work is on your owner-occupied home). If you want to do the plumbing yourself on your own home, South Carolina law does not prohibit it for owner-occupied work, but the Lexington Building Department will require the plumbing plan to be signed by a licensed plumber confirming code compliance. Most homeowners find it simpler to hire a licensed plumber to design and execute the plumbing portion.

The cost advantage of the owner-builder exemption is not in the permit fee (same whether you're licensed or not) but in avoiding contractor markup on labor and overhead. A licensed general contractor might charge 30-50% markup on a full bathroom remodel; doing much of the finish work yourself (demo, painting, some tile layout) saves money. However, do not attempt rough plumbing or electrical without proper training—code violations in these areas are fire and flood hazards that inspectors are trained to catch, and fixing them after the fact is expensive.

For a typical Lexington bathroom remodel, the owner-builder path works like this: you pull the permit in your name, the plumber or electrician you hire signs off on the plan for their trade, you schedule inspections, and you coordinate the subcontractors. The City of Lexington Building Department will contact you (the permit holder) for inspection scheduling and closeout, not the contractor. This gives you direct control over the timeline and the work quality.

City of Lexington Building Department
310 East Main Street, Lexington, SC 29072 (City Hall — confirm building permit office location with city)
Phone: (803) 358-7770 (City of Lexington main line; ask for Building Department or Permits) | https://www.lexingtonsc.gov/ (search 'permits' or 'building permits' on city website for online portal link)
Monday-Friday, 8:00 AM - 5:00 PM (confirm with city, holiday closures apply)

Common questions

Do I need a permit if I'm just replacing my toilet and sink faucet in place?

No. Replacing fixtures in their existing locations without touching supply lines or drain traps is maintenance work and does not require a permit. You can buy the fixtures and install them yourself or hire a plumber. However, if you're extending supply lines or relocating the drain (even slightly), a permit is required.

What's the difference between a wet vent and a dedicated vent line for my new vanity drain?

A wet vent allows one fixture (like a sink) to share its vent with another fixture's drain line, saving cost and space; a dedicated vent runs solely from one fixture's trap to the vent stack. Lexington's Building Department (following IRC P3201) allows wet venting in specific configurations. Your plumber will choose based on your existing plumbing layout and distance from the vent stack. Wet venting is common in older Lexington homes with limited attic or wall space.

My home was built in 1975. Do I have to test for lead paint before I start demo?

You must provide a lead-hazard disclosure to anyone you hire and follow EPA RRP rules (containment, wet-wiping, HEPA vacuuming) if you're disturbing painted surfaces. Testing is recommended (costs $300–$600) to confirm lead presence, but it's not legally required before you start work—however, EPA RRP rules apply by default to homes built before 1978 unless you test and prove the paint is lead-free. Most Lexington homeowners hire a certified lead abatement contractor ($3,000–$8,000) to handle the demo and contain dust; this is often cheaper and faster than doing it yourself.

How long does plan review take for a bathroom remodel in Lexington?

Typical plan review is 2-3 weeks for standard remodels (vanity/toilet/tile changes with no structural work). More complex work (tub-to-shower conversion, relocated plumbing, new drain lines) may take 3-4 weeks if the plans need clarification. Use Lexington's online portal to submit; response time via portal is faster than in-person counter reviews because the plans are date-stamped and tracked automatically.

Do I need a separate plumber's license permit, or is that included in the building permit?

The building permit covers the overall project. South Carolina law requires the plumber performing the work to hold a valid plumber's license (issued by the SC Board of Examiners for Plumbers), but that license is separate from the building permit. When you hire a plumber, confirm they are licensed with South Carolina; the Lexington Building Department will verify this during the rough plumbing inspection. The plumber's license and the building permit are two different documents.

What happens if I install a shower without proper waterproofing and the inspector fails me?

The Inspector will issue a rough-in rejection, requiring you to remove the tile and tile substrate, install or repair the waterproofing membrane, and pass re-inspection before you can finish the wall. This delay typically adds 1-2 weeks and extra cost for removal and reinstallation. Proper waterproofing (membrane detail shown on the plan and verified during rough-in) prevents this expensive rework.

I'm adding a new GFCI outlet for my double vanity. Do I need a dedicated 20-amp circuit?

Bathroom outlets must be protected by GFCI, but they do not require a dedicated circuit by code if there are no other high-draw appliances on the same circuit. A typical bathroom outlet circuit can serve multiple outlets (vanity, mirror, exhaust fan if it's low-power). However, if you're adding both a GFCI outlet and a new exhaust fan with a light, using a dedicated 20-amp circuit is common practice. Your electrician will size the circuit based on load and the Lexington Building Department will verify compliance during rough electrical inspection.

Can I pull the permit myself as an owner-builder, or do I have to hire a contractor?

You can pull the permit yourself under South Carolina's owner-builder exemption (SC Code § 40-11-360) as long as it's your owner-occupied home. You'll need to hire licensed plumbers and electricians for their trades, but you can coordinate the project and do finish work yourself. The permit is issued in your name, and the city will contact you for inspections. This saves contractor markup but requires you to manage the subcontractors.

What inspections are required for a full bathroom remodel in Lexington?

Standard inspections are: (1) Rough Plumbing — before walls are closed; (2) Rough Electrical — before drywall if new circuits are added; (3) Waterproofing (if shower/tub conversion) — before tile; (4) Framing — if walls are moved (often skipped for cosmetic remodels); (5) Final — after all work is complete, fixtures are installed, and tile/paint is finished. Your permit approval notice will list the required inspections; call 3-5 business days ahead to schedule each one.

How much will the building permit cost for my bathroom remodel?

Lexington's permit fees are typically $200–$800 depending on the project valuation (materials plus estimated labor). A simple vanity/toilet/tile refresh might be $200–$300; a double-vanity with new drain and electrical might be $400–$600; a tub-to-shower conversion with relocated plumbing and exhaust might be $600–$800. The permit office will calculate the exact fee based on your plan submission and provide it before you pay. Owner-builder permits are the same price as contractor permits.

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current bathroom remodel (full) permit requirements with the City of Lexington Building Department before starting your project.

More permit guides

National guides for the most-asked homeowner permit projects. Each goes deep on code thresholds, common rejections, fees, and timeline.

Do I need a permit for a full bathroom remodel in
Lexington, South Carolina?