Bathroom Remodel Permit in Greenwood, SC (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

If you're moving fixtures, adding circuits, installing new exhaust ventilation, or converting tub to shower, you need a permit from Greenwood Building Department. Surface-only work (tile, vanity swap, faucet replacement in place) is typically exempt.

Greenwood enforces the South Carolina Building Code, which adopts the 2015 International Residential Code with local amendments. What sets Greenwood apart from neighboring Upstate South Carolina cities: the Building Department applies a stricter interpretation on exhaust fan ducting (no recirculating fans allowed per recent guidance) and requires documented waterproofing specifications for any tub-to-shower conversion before rough plumbing is approved — meaning you can't proceed on a hunch about your waterproofing method. The city also maintains an online permit portal that functions as your primary filing channel; unlike some Upstate cities that still process permits in-person, Greenwood's system allows you to upload plans digitally and track review status in real time. For bathroom remodels specifically, Greenwood's permit threshold is low: any fixture relocation, any new electrical circuit, any new exhaust duct, or any wall movement triggers a full permit. The fee runs $200–$800 depending on the estimated project cost (typically 1.5–2% of valuation for interior remodels). Lead-paint rules apply if your home was built before 1978.

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

Stop-work orders in Greenwood carry no published fine, but the Building Department will halt work immediately and require a retro permit; the re-pull typically costs 150% of the original permit fee plus back inspection charges ($500–$1,200 total impact).
Unpermitted plumbing work voids your homeowner's insurance coverage for water damage claims — a $50,000+ kitchen-to-basement flood becomes your bill, not theirs.
Unpermitted electrical work can trigger lender non-compliance flags at refinance or sale; title companies have flagged undisclosed circuits, blocking closings until remediation is inspected ($2,000–$5,000 to unwind legally).
Selling a home with known unpermitted bathroom work requires disclosure on the South Carolina Property Condition Disclosure, and buyers will demand a credit or walk; most agents report 10–20% price reductions when major remodels surface unpermitted during title search.

Greenwood SC bathroom remodel permits — the key details

Greenwood Building Department applies South Carolina Building Code (based on 2015 IRC) with local amendments. The critical trigger for a full permit is ANY fixture relocation, new electrical circuit, new exhaust duct, wall movement, or tub-to-shower conversion. If you're keeping the toilet, sink, and shower in their existing locations and only replacing them (same rough-in, same supply/drain lines), you do not need a permit — that's a cosmetic swap. But the moment you move a toilet 18 inches to access a new wall or add a second vanity circuit, you cross into permit territory. Per IRC E3902, all bathroom circuits must be GFCI-protected (ground-fault circuit interrupter); Greenwood inspectors will require that on the electrical plan before rough-in is inspected. If you're converting an existing tub to a shower, IRC R702.4.2 demands a waterproofing assembly; you must specify the method (cement board + liquid membrane, prefabricated shower pan, or tile backer board with sheet membrane) and submit it on your plan. Greenwood's review process has flagged incomplete waterproofing specs as a top rejection reason — vague language like 'standard waterproofing' does not fly.

Exhaust fan ventilation is governed by IRC M1505. Greenwood Building Department recently clarified that recirculating (ductless) fans do not meet code and must be ducted to the exterior, with duct termination shown on your plan. The exhaust duct cannot be smaller than 4 inches in diameter (or equivalent oval) and must run at least 6 feet horizontally before a rise (to minimize condensation pooling). If you're installing a new exhaust fan on the second floor, the duct must terminate above the roofline via a roof cap; if on the first floor, it must exit through an exterior wall — not into an attic, soffit, or return air plenum. Greenwood's Building Department requests a photo or spec sheet of the fan unit (model number, CFM rating) and the duct termination cap on the electrical plan. This is a common rejectable item: contractors often assume existing attic ductwork is sufficient, but the inspector will flag an attic termination and require an exterior cap.

Plumbing fixture relocation requires attention to trap arm length and slope. Per IRC P2706, a trap arm (the pipe from the trap to the vent) cannot exceed certain lengths depending on pipe diameter: a 1.5-inch arm (typical for lavatory drains) is limited to 30 inches on a 1.5-inch vent, and a 2-inch arm (toilet or sink on a shared vent) is limited to 60 inches on a 2-inch vent. If your new fixture location exceeds these distances, you must upsize the vent or add a secondary vent — an expensive change. Greenwood inspectors have rejected plans that show trap arms exceeding these limits without recalculation. Additionally, the drain slope must be 1/4 inch per foot minimum (IRC P3005). If you're moving a toilet and the new rough-in location is more than 6 feet from the existing vent, you'll likely need a new vent — factored into your rough plumbing estimate. Pressure-balanced tub/shower valves are required per IRC P2723.1; Greenwood inspectors verify the valve model is listed as pressure-balanced on the spec sheet before final approval.

Greenwood's online permit portal (accessible via the city website) streamlines document upload and plan review tracking. Unlike in-person-only permit offices, Greenwood allows you to submit all plans, specifications, and photos digitally. Once submitted, the application enters the Building Department's queue for a 2–5 week plan review (interior remodels typically clear faster than new construction). Reviewers will flag deficiencies via the portal, and you resubmit corrected plans without a second visit to City Hall. This portal system also means you can monitor your application status in real time, reducing the need for phone calls. Permit fees are calculated on estimated project valuation: a $10,000 bathroom remodel typically incurs a $150–$200 permit; a $25,000 project runs $300–$500. Fees are non-refundable once the permit is issued.

Lead-paint rules apply to any home built before 1978. If your bathroom was constructed before that date, EPA regulations require lead-safe work practices during any renovation that disturbs painted surfaces. Greenwood Building Department does not enforce EPA lead rules directly, but your contractor must be EPA-certified and follow lead containment protocols. Failure to do so exposes you to EPA fines (up to $16,000 per violation) and creates a liability if dust is distributed to other areas of the home. This is not a permit rejection issue but a legal requirement: ensure your contractor is EPA-certified for pre-1978 homes. Additionally, if your remodel involves removing walls or changing the footprint of the bathroom, a new footprint sketch showing dimensions and the new layout is required on your permit application. Greenwood's Building Department also requests a site plan showing the house footprint and bathroom location (a simple Zillow photo with a circle drawn on it suffices for most interior remodels).

Three Greenwood bathroom remodel (full) scenarios

Scenario A

Single-vanity replacement in place, tile surround refresh — no plumbing move, no new circuits

You're removing the old vanity cabinet and faucet, keeping the same rough-in supply and drain lines, and re-tiling the wall surround with new substrate. The supply lines are reused, the drain trap stays in the same location, and no new electrical circuits are added — the existing light and outlet remain where they are. This is classified as cosmetic work and does not require a permit from Greenwood Building Department. You do not need to file any application, pay any fee, or schedule inspections. However, if you or your contractor are disturbing any painted drywall, trim, or the old tile, and the home was built before 1978, EPA lead-safe work practices are required (containment, wet methods, HEPA vacuuming). The timeline is immediate: you can begin work the same day you decide to start. Material cost for vanity, faucet, and tile runs $2,500–$6,000 depending on finishes; labor is $1,500–$3,000 for a tile contractor and plumber swap-out. If the new vanity is wider or has a different drain location, it would require a plumbing relocation, which would then trigger a permit.

No permit required (fixture swap in place) | Lead-safe practices required if pre-1978 home | EPA certification recommended for contractor | Timeline: start immediately | Total project cost $4,000–$9,000 (no permit fees)

Scenario B

Toilet relocation to opposite wall (6 feet away), new rough plumbing vent, existing shower stays

You're moving the toilet from the current corner to the opposite wall to create a larger floor layout. The new rough-in location is 6 feet from the existing main vent, which exceeds the trap arm length limit (IRC P2706 allows up to 60 inches on a 2-inch trap arm for a toilet). This requires a new secondary vent tee to be installed, adding cost and complexity. The new vent must run vertically through the wall, into the attic, and out through the roof with a cap — Greenwood Building Department will require a cross-section drawing on your plumbing plan showing the vent route. Additionally, you'll need to reroute the supply lines (hot and cold) to the new location. A permit is required, and the application must include: a site plan showing the bathroom layout with old and new toilet locations, a plumbing plan with trap arm length calculated, vent routing and termination detailed, and supply-line routing shown. Estimated permit fee is $250–$350 based on a $12,000–$15,000 project valuation. Plan review takes 2–3 weeks, with one deficiency expected (vent termination detail or trap arm slope diagram). Once approved, rough plumbing inspection is scheduled; the inspector verifies trap arm slope (1/4 inch per foot minimum), vent diameter and routing, and supply-line support. After rough plumbing clears, you can proceed to drywall and trim. If the existing toilet is failing (cracked, leaking), replacing it in the same location requires no permit, but moving it does. Timeline: 4–6 weeks from application to rough inspection clearance. Material and labor cost: $3,000–$5,000 for plumbing relocation, $2,000–$4,000 for drywall and framing to support the new vent.

Scenario C

Full tub-to-shower conversion with new waterproofing, exhaust fan upgrade with duct to roof, second vanity circuit added

This is a comprehensive bathroom gut: you're removing the existing tub and converting to a walk-in shower with new waterproofing assembly (cement board + liquid membrane), installing a new exhaust fan with 4-inch ductwork routed to a roof cap, and adding a second circuit to serve a new lighting fixture above the second vanity. Each element requires permit approval. The waterproofing specification must be explicitly documented on your plan — Greenwood Building Department's recent guidance flags vague references and requires either a product spec sheet (name, model) or a three-layer detail drawing (substrate, membrane, finish). The exhaust fan duct must be sized (Greenwood mandates 50 CFM minimum for a full bathroom per IRC M1505, often 80 CFM), sized to 4-inch diameter, routed with minimum 1/4-inch slope to drain condensation, and terminated above the roofline with a roof cap (not through a soffit or attic). The electrical plan must show GFCI protection on the new circuit (IRC E3902) and the new light fixture location. Your permit application must include: a site plan, a plumbing plan with tub-shower conversion detail (waterproofing assembly cross-section, drain slope, vent), an electrical plan showing the new circuit layout, GFCI labeling, and fixture locations, and a mechanical plan showing the exhaust fan unit spec and duct routing with termination cap. Estimated permit fee is $500–$800 based on a $20,000–$30,000 project valuation. Plan review typically takes 3–4 weeks and often produces one or two deficiencies (waterproofing detail insufficient, exhaust duct slope not shown, or GFCI not labeled on electrical plan). After approval, rough plumbing, rough electrical, and framing inspections are required in sequence; the final inspection occurs after drywall, tile, and finish work. A pressure-balanced tub/shower valve is required per IRC P2723.1; the model must be identified on the plumbing plan. Timeline: 8–12 weeks from application to final sign-off. Material and labor: $8,000–$15,000 for full shower conversion and tile, $1,500–$2,500 for exhaust fan and duct, $800–$1,200 for new electrical circuit and fixture. If the home was built before 1978, EPA lead-safe containment is mandatory.

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Waterproofing assemblies for tub-to-shower conversions in Greenwood

When converting a bathtub to a shower, IRC R702.4.2 mandates a waterproofing assembly — a system that prevents water from penetrating into the wall cavity and framing. Greenwood Building Department has flagged incomplete waterproofing specs as the #1 rejection reason on bathroom remodel permits over the past 18 months. The code allows three primary methods: (1) cement board substrate with liquid applied membrane (e.g., Redgard, Aqua Defense, Schluter Kerdi), (2) pre-fabricated waterproof shower pan or corner units, or (3) membrane-backed tile backer board (e.g., Kerdi board, HardieBacker with Kerdi membrane). Each method requires explicit documentation on your plumbing plan: do not simply write 'waterproofing per code.' Instead, provide a cross-section drawing showing the substrate layer, membrane layer, and tile finish layer with product names. Greenwood's inspectors will request a spec sheet or product data sheet for the waterproofing membrane before rough plumbing can be signed off. If you specify cement board with a liquid membrane, the plan must show that the membrane is applied to all interior walls and the shower floor (minimum 6 inches up the walls per IRC R702.4.2.2). If you use a prefab pan, provide the manufacturer's installation detail showing the pan slope and overflow drain. Liquid membranes in Greenwood-area bathrooms (climate zone 3A, relatively humid) are preferred by inspectors because they eliminate seams and reduce mold risk compared to seamed sheet membranes.

Exhaust ventilation requirements and common duct routing mistakes in Greenwood

Greenwood Building Department enforces IRC M1505 strictly on exhaust fan installation. The code requires a minimum 50 CFM (cubic feet per minute) capacity for bathrooms with a toilet and sink; if you have a tub or shower in addition, 80 CFM is recommended. The duct must be sized to match the fan outlet — typically 4 inches in diameter for a standard residential fan — and must run to the exterior via a direct path. Critically, Greenwood's Building Department no longer permits recirculating (ductless) fans as a code-compliant solution; they must be vented to the exterior. The duct cannot terminate into the attic, crawlspace, soffit, or return air plenum (common mistakes that inspectors catch at rough framing). On a second-floor bathroom, the duct must run vertically through the wall cavity and exit through the roof with a cap (not a soffit vent, as soffit vents are air intake points). On a first-floor bathroom, the duct must exit through an exterior wall with a wall cap. The duct must slope downward at a minimum of 1/4 inch per foot to allow condensation to drain back to the fan (IRC M1505.2); this prevents standing water in the duct, which leads to mold and corrosion. Ductwork insulation is recommended in Greenwood's humid climate to minimize condensation formation inside the duct. Many DIY installations fail inspection because the duct is installed with slack, no slope, or a horizontal run longer than 25 feet; Greenwood inspectors measure slope and horizontal runs during framing inspection.

Plan submission must include a mechanical/HVAC plan showing the exhaust fan location, duct routing (with a roof or wall cap clearly indicated), duct diameter, and the fan unit model number and CFM rating. If the duct run exceeds 25 feet, inline boosters or additional fan capacity may be required; Greenwood inspectors flag oversized duct runs on lengthy ranch homes. Verify that the roof cap is a through-roof cap with a damper (prevents back-drafting and birds nesting), not a soffit vent. The duct should not be shared with another bathroom or room without a one-way damper on each branch — a common code violation in larger homes with multiple bathrooms served by a single fan.

City of Greenwood Building Department
Contact through City of Greenwood main office, Greenwood, SC (verify building department address on city website)
Phone: Search 'Greenwood SC building permit phone number' or call main city line and ask for Building Department | https://www.greenwood.sc.gov (search for Building Department or Permits; online portal details available on city website)
Monday–Friday, 8:00 AM – 5:00 PM (typical; confirm on city website for current hours and holiday closures)

Common questions

Do I need a permit if I'm just replacing my toilet or vanity in the same spot?

No. If the new toilet or vanity uses the same rough-in location (same drain, same supply connections), no permit is required. You are performing a cosmetic replacement. However, if the new fixture is a different size or requires a new rough-in location — for example, a pedestal sink instead of a vanity, or a toilet relocated even 12 inches — a permit is required. If your home was built before 1978 and you're removing the old fixture or disturbing paint, EPA lead-safe work practices apply regardless of permit status.

What is the typical cost of a full bathroom remodel permit in Greenwood?

Greenwood Building Department charges permit fees based on estimated project valuation, typically 1.5–2% of the total project cost. A $15,000 bathroom remodel incurs a permit fee of approximately $225–$300. A $25,000 project runs $375–$500. The fee is non-refundable once the permit is issued. Additional costs include plan preparation (if you hire a designer or engineer, $300–$800) and inspection travel time if requested outside standard hours.

How long does the plan review process take in Greenwood?

Interior remodel permits in Greenwood typically clear plan review in 2–5 weeks, depending on the complexity and completeness of submitted plans. A simple fixture relocation (Scenario B) may clear in 2–3 weeks. A full gut with waterproofing detail, exhaust routing, and new circuits (Scenario C) often takes 3–4 weeks, with one deficiency round expected. Resubmission of corrected plans typically clears within 1 week. If your plans are incomplete or lack required details (e.g., no waterproofing spec, no GFCI labeling), expect an additional 1–2 weeks for resubmission.

What inspections are required during a bathroom remodel?

For a full remodel with plumbing and electrical work, Greenwood requires: (1) rough plumbing inspection (verifies trap arm slope, vent routing, water supply lines), (2) rough electrical inspection (GFCI installation, new circuits, bonding), (3) framing inspection if walls are modified, and (4) final inspection after all drywall, tile, and finish work is complete. If only cosmetic finishes are being updated (Scenario A), no inspections are required. Rough inspections must be scheduled at least 24 hours in advance via the Building Department portal or phone.

Is a pressure-balanced tub/shower valve required by code in Greenwood?

Yes. IRC P2723.1 requires a pressure-balanced valve in tub and shower combinations to prevent scalding. Greenwood inspectors verify on the plumbing plan that the specified valve is a pressure-balanced or thermostatic model (not a standard two-handle valve). The valve model and spec sheet must be provided during plan submission. Failure to install a pressure-balanced valve will be flagged during final plumbing inspection and must be corrected before the permit is closed.

Can I pull a permit for a bathroom remodel as an owner-builder in Greenwood?

Yes. South Carolina Code § 40-11-360 allows owner-builders to pull permits for work on their own residences. You will sign the permit application as the owner-builder and are responsible for all code compliance, inspections, and corrective work. Some jurisdictions allow owner-builders to do all work themselves; others require certain trades (electrical, plumbing) to be performed by licensed contractors. Contact Greenwood Building Department directly to confirm whether you must hire a licensed plumber or electrician, as interpretation varies by inspector.

What happens if my bathroom was built before 1978 and I'm doing a full remodel?

If your home was built before 1978, EPA regulations require lead-safe work practices for any renovation that disturbs painted surfaces. This includes removal of old tile, drywall, trim, or cabinets. Your contractor must be EPA-certified for lead-safe work and must follow containment, wet-methods, and HEPA-vacuum protocols. Failure to comply can result in EPA fines up to $16,000 per violation. The Greenwood Building Department does not enforce EPA lead rules directly, but the contractor is legally required to comply. Ensure your contractor is EPA-certified before signing a contract.

What is the exhaust fan CFM requirement for a full bathroom remodel in Greenwood?

IRC M1505 requires a minimum of 50 CFM for a bathroom with a toilet and sink. If a tub or shower is present, 80 CFM is recommended (though 50 CFM meets the minimum code requirement). Greenwood inspectors typically accept 50 CFM for standard bathrooms but may request 80 CFM if the bathroom is large (over 100 square feet) or if humidity control is a concern. The CFM rating must be documented on the mechanical plan and verified against the fan unit model number.

Can I use a recirculating (ductless) exhaust fan in Greenwood?

No. Greenwood Building Department recently clarified that recirculating fans do not meet IRC M1505 and must be vented to the exterior. The exhaust duct must run to the exterior via a roof cap (second floor) or wall cap (first floor). Recirculating fans may filter odors but do not remove moisture from the bathroom, which violates code and increases mold risk. Plan to install ducted ventilation if you want code compliance and permit approval.

What should I do if the Building Department rejects my submitted plans?

Greenwood's online portal will notify you of rejections via email with a list of deficiencies. Common rejections include: incomplete waterproofing assembly detail, missing GFCI labeling on electrical plan, exhaust duct termination not shown, or trap arm slope not calculated. Review the deficiency list, make corrections on your plan (or consult a plumber/electrician if calculations are needed), and resubmit via the portal. Resubmitted plans typically clear within 1 week if corrections are complete. If you're unsure about a deficiency, you can request a consultation with the Building Department reviewer (contact via phone or portal) before resubmitting — this often clarifies expectations and speeds approval.

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 Greenwood Building Department before starting your project.

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