Key takeaways
- Almost every kitchen or bathroom remodel in Maryland requires permits.
- Repainting, new cabinet doors, and swapping countertops without moving the sink are generally permit-free.
- In Maryland, plumbing work must be performed or directly supervised by a licensed plumber.
- The county confirms the contractor holds an active MHIC license before issuing permits.
- All Maryland counties adopt the state building code, but each runs its own permitting office with different processing times.
Almost every kitchen or bathroom remodel in Maryland requires permits. Any work that moves plumbing, adds or relocates electrical circuits, modifies gas lines, or changes the structure of the home triggers permits from your county’s permitting office. Replacing cabinet door fronts, swapping countertops without moving the sink, or painting does not.
What does NOT require a permit
Purely cosmetic work that does not touch the systems behind the walls is generally permit-free:
- Repainting walls, ceilings, or cabinet faces
- Replacing cabinet doors and drawer fronts without moving the cabinet boxes
- Swapping countertops without moving the sink or any plumbing connections
- Replacing flooring (tile, hardwood, laminate) without modifying the subfloor structure
- Replacing a toilet, faucet, or showerhead in the same location with a like-for-like fixture
- Replacing kitchen appliances in the same location
If the layout stays identical and no systems are modified, you are likely in ordinary maintenance territory.
What triggers a permit
Most full kitchen or bathroom renovations touch at least two of these categories.
Plumbing permit: Moving a sink, toilet, tub, or shower to a new location. Adding a kitchen island with a prep sink. Rerouting supply or drain lines. Adding a second sink to a bathroom. In Maryland, plumbing work must be performed or directly supervised by a licensed plumber.
Electrical permit: Installing dedicated circuits for a dishwasher, microwave, or garbage disposal. Adding GFCI-protected outlets near sinks or in bathrooms. Installing recessed lighting. Making any additions to the electrical panel. New or relocated circuits require permits in every Maryland county.
Gas permit: Moving or adding a gas line for a range, cooktop, or gas fireplace insert. Gas work is inspected separately from plumbing.
Mechanical permit: Installing or replacing a range hood that exhausts to the exterior. Cutting a new duct penetration through an exterior wall triggers a mechanical permit and typically a building sub-permit as well.
Building permit: Removing or moving a wall, especially a load-bearing one. Enlarging a window or doorway. Any structural change to framing. Structural permits require a framing inspection before walls are closed.
A full bathroom remodel that moves the toilet, adds a second sink, and installs a new exhaust fan typically triggers plumbing, electrical, and mechanical permits. A bathroom addition requires all of the above plus a site plan in most Maryland counties.
Who pulls the permits?
Your contractor typically applies for and pulls permits on your behalf before work begins. The county confirms the contractor holds an active MHIC license before issuing permits. You, as the homeowner, are ultimately responsible for ensuring that work requiring a permit has been permitted. It is reasonable to ask your contractor to show you the permit before work starts. A contractor who resists this request is worth pausing on.
How Maryland counties differ
Review times change with each department’s workload, so ask for the current estimate when you apply and build it into your start date.
All Maryland counties adopt the state building code, but each county administers its own permitting office with different processing times and procedures.
Montgomery County (DPS): Montgomery County’s Department of Permitting Services is one of the more thorough review offices in the state. Apply online through the county’s eServices portal. Contact: 240-777-0311.
Prince George’s County (DPIE): The Department of Permitting, Inspections and Enforcement handles residential permit review. Several incorporated municipalities inside Prince George’s County, including Bowie, Laurel, and College Park, layer their own inspection requirements on top of county rules. Confirm whether your address falls under a municipal code as well.
Howard County (DILP): Howard County’s Department of Inspections, Licenses and Permits enforces the 2021 International Residential Code with county amendments. Interior remodel permits do not require a plot plan, which simplifies the application. Ellicott City, Columbia, and Clarksville all fall under DILP.
Anne Arundel County: As of December 1, 2025, most new permit applications in Anne Arundel County require online submission through the county’s Land Use Navigator (LUN) system. Anne Arundel County also has a large mapped floodplain and Critical Area along the Chesapeake Bay. Waterfront homes should check substantial-improvement rules before a large interior renovation. Contact the Permit Center at 410-222-7730.
Baltimore County: Permits are handled through the Baltimore County Department of Permits, Approvals and Inspections. Kitchen and bath remodel permits follow the same trigger rules as other Maryland counties.
Frederick County: Frederick County’s Division of Permits and Inspections handles residential permits for the county and the city of Frederick. Processing is generally faster than the D.C.-area counties.
What happens if you skip a permit
Building without permits in Maryland risks stop-work orders and fines. When you sell your home, buyer inspections and title searches may flag unpermitted work. Correcting unpermitted work retroactively, by pulling an after-the-fact permit and opening walls for inspection, often costs more than the original permit would have. Homeowner’s insurance may deny claims for damage connected to unpermitted electrical or plumbing work.
FAQ
Does replacing a vanity and toilet require a permit in Maryland?
Replacing a vanity and toilet in the same location with like-for-like fixtures is generally permit-free in Maryland counties if no plumbing lines are moved. If the project requires adding or relocating a drain or supply line, a plumbing permit is needed.
What about adding a bathroom exhaust fan?
Replacing an existing fan in the same location using the existing duct penetration typically does not require a permit in most Maryland counties. If you are cutting a new hole through an exterior wall, a mechanical permit is required.
Can a homeowner pull their own permits in Maryland?
Homeowners can pull certain permits for their own principal residence. However, work that requires a licensed trade (plumbing, electrical, gas) must be done by a licensed tradesperson who typically pulls their own sub-permit. You remain responsible for ensuring all inspections pass.
How do I find my county’s permit office?
Search “[county name] Maryland permits” or go directly to the county government website. Maryland’s 23 counties and Baltimore City each run their own permitting department. The six offices listed above cover the largest residential markets in the state.
This guide is for general information only and is not legal advice. Permit requirements depend on the specifics of your project and your county. Confirm requirements with your local permitting office before starting work.
Planning a Maryland kitchen or bathroom renovation? Find a verified contractor on Renovexus.
Sources
- Maryland Home Improvement Commission (MHIC) labor.maryland.gov
- Montgomery County Department of Permitting Services montgomerycountymd.gov
- Anne Arundel County Department of Inspections and Permits aacounty.org
- Home Improvement Permits in Maryland bluecollarscholars.net
- Kitchen Remodel Cost and Permit Guide Maryland gbckitchenandbath.com
