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Permit Required

Bathroom Remodel Permit Requirements — Charleston, SC

Yes, a permit is required for a bathroom remodel with footprint expansion in Charleston. The project requires a Residential Alteration/Addition Permit and Plumbing Permit, and may require Board of Architectural Review (BAR) approval if any exterior work is visible from a public right-of-way.

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What affects your permit requirement

The property is located in the Old and Historic District, which triggers potential BAR review for any exterior modifications visible from the public right-of-way.
Footprint expansion into adjacent space requires a full Residential Alteration/Addition Permit with sealed construction documents from a licensed SC design professional.
Moving or adding plumbing lines triggers a separate Plumbing Permit fee based on the number of fixtures and water supply/sewer lines involved.
The total construction cost (contract price including labor, materials, overhead, and profit) determines the building permit fee using a tiered schedule.
BAR review must be confirmed with staff before application submission to determine whether the specific scope of exterior work is visible from a public right-of-way.
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Typical requirements

Fee range
$280–$520
[fee schedule]
Department
City of Charleston Building Inspections Division, Department of Public Service
(843) 724-7311
https://www.charleston-sc.gov/856/Permit-Center

These figures reflect typical jurisdiction data. Fees and timelines change. Run a free search on your exact address for jurisdiction-confirmed requirements before you bid or apply.

Frequently asked questions

01

Do I need a permit for a bathroom remodel in Charleston?

Yes, if you are expanding the bathroom footprint into adjacent space, you need a Residential Alteration/Addition Permit and Plumbing Permit. If your property is in the Old and Historic District (which this address is), you may also need Board of Architectural Review (BAR) approval if any exterior work is visible from the street.

02

What is the cost to permit a bathroom addition in Charleston?

For a $30,000 project, expect approximately $280 for the building permit (including application fee, permit fee, and plan review) plus Plumbing Permit fees of $40 plus $3.50 per fixture moved or added. BAR review fees are separate if triggered—contact the Department of Planning, Preservation & Sustainability at (843) 724-3748 for current BAR fee amounts.

03

Why do I need BAR approval for my bathroom remodel?

The property is located in Charleston's Old and Historic District. The Board of Architectural Review must approve all alterations and renovations visible from the public right-of-way to maintain historic character. If your bathroom expansion involves exterior modifications (new window, wall opening, or structural changes visible from the street), BAR review is required.

04

How do I apply for a bathroom remodel permit in Charleston?

Submit your Residential Alterations/Additions Application through the City of Charleston Permit Center online portal at https://www.charleston-sc.gov/856/Permit-Center. Before submitting, contact BAR staff at (843) 724-3748 to confirm whether your footprint expansion triggers historic review, and the Building Inspections Division at (843) 724-7311 to verify current requirements.

05

What documents do I need to submit for a bathroom addition permit?

You must submit architectural and structural construction documents signed and sealed by a licensed South Carolina design professional, plus a site plan showing the proposed addition with measurements. All documents should be submitted with your Residential Alterations/Additions Application through the permit portal.

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