All Cities / Maryland / Baltimore
How Much Does a Building Permit Cost in Baltimore?
✓ Fee schedule checked against city sources
Fee math from Department of Housing and Community Development (DHCD), City of Baltimore, not a national average
Source: Department of Housing and Community Development (DHCD), City of Baltimore · Fee schedule source ↗
Data last verified: July 24, 2026
Every Baltimore permit carries a 5% Building Code permit tax (109.7), which is baked into every fee shown here. A nonrefundable application fee also applies: $25 without plan review, $125 with. Interior alterations are priced by affected square footage ($0.30/sqft, min $50), not project value. Replacing roof shingles or tarring is exempt.
Permit Cost by Project
Demolition$315.00
Building Permit ($25K project)$262.50
Kitchen Remodel$156.45
Building Permit ($12K project)$126.00
Siding Replacement$105.00
Bathroom Remodel$94.50
Building Permit ($8K project)$84.00
HVAC Replacement$63.00
Electrical Panel$31.50
Fence Permit$26.25
Solar Panel Installation$26.25
EV Charger Installation$26.25
Electrical Permit$26.25
Plumbing Permit$26.25
HVAC / Mechanical Permit$26.25
Water Heater$21.00
Do You Need a Permit?
No: Paint, cosmetic updates, fixture swaps
Yes: Bathroom remodel ($94.50)
Yes: Kitchen remodel ($156.45)
Yes: HVAC replacement ($63.00)
Yes: Water heater ($21.00)
Yes: Electrical panel ($31.50)
Yes: Solar panels ($26.25)
Verified Permit Cost by Project Type
Demolition
$315.00
Demolition
Building Permit ($25K project)
$262.50
Building
Kitchen Remodel
$156.45
Building, Electrical, Plumbing
Building Permit ($12K project)
$126.00
Building
Siding Replacement
$105.00
Building
Bathroom Remodel
$94.50
Building, Electrical, Plumbing, Mechanical
Building Permit ($8K project)
$84.00
Building
HVAC Replacement
$63.00
Mechanical
Compare these permit costs across U.S. cities
Two Types of Permits
Baltimore issues building permits for structural work and separate trade permits for plumbing, electrical, HVAC, and roofing. Most remodels need both kinds. See the full breakdown of which projects need a permit and which are exempt.
Baltimore Permit Cost Calculator
Choose a common project or enter a project value to estimate local permit fees from Department of Housing and Community Development (DHCD), City of Baltimore data.
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Baltimore calculator ready. Select a project to update the local permit estimate.
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Updates instantly when project type or valuation changes.
✓ Verified local fee schedule
✓ Exempt: replacing roof shingles or tarring needs no permit (105.2 items 17-18). Structural roof work is not exempt (then a $10 per $1,000 exterior-alteration permit plus 5% tax).
Local sourceBuilt from Department of Housing and Community Development (DHCD), City of Baltimore fee data, not a national average.
Formula-backedValuation-based projects recalculate from the local fee formula.
Bookmark friendlyThe tool lives on this city page so citations and saved links stay stable.
Baltimore charges $63 for the building permit on a $25,000 kitchen remodel, and about $156 once the trade permits stack on. Those figures include the 5% Building Code permit tax under Section 109.7. Most cities tie fees to project value. Baltimore doesn't for interior work.
How Baltimore Calculates Permit Fees
Baltimore uses a separate trade permit system. You pull individual permits for building, electrical, plumbing and mechanical work. Every fee carries an extra 5% Building Code permit tax per Section 109.7. I pulled this from the 2024 Edition of the Baltimore City Building Code.
Interior alterations don't use project value. They charge $0.30 per affected square foot with a $50 minimum. A typical bathroom hits that floor fast. So does a kitchen. The $25,000 kitchen we modeled costs $156 total. The $50,000 kitchen costs the same $156. The fee doesn't scale with your finishes.
Add a nonrefundable application fee too. That runs $25 without plan review or $125 with it. Trade permits start at $26 each for electrical, plumbing or HVAC. A simple water heater changeout totals $21. An HVAC swap lands at $63. (Locking these down meant three PDFs plus the local amendments in Ord. 24-341.)
The online calculator on this page already factors in the 5% tax and application fee. Punch in your square footage. It spits out the real number. Not cheap. But predictable once you know the square foot rule.
San Diego would charge you thousands for the same bathroom. Baltimore won't.
Chuck's Take
"I bid jobs in Missouri. When a homeowner says the permit is cheap I always ask what system they use. Baltimore's square foot method beats valuation games in other cities. You won't get surprised by high end finishes bumping your fee. Still budget the 5% tax though. Nobody likes that add on."
Leonard "Chuck" Thompson, LC Thompson Construction Co.
What Needs a Permit in Baltimore?
You need a permit for most structural changes in Baltimore. Replacing roof shingles or tarring gets exempted under Section 105.2. Same for interior drywall repair and painting.
A bathroom remodel needs permits. So does a kitchen. Electrical panel upgrades require their own permit. Same for new HVAC or water heater swaps. You don't need one for cosmetic finishes. But you do for anything that touches wiring, pipes or load bearing walls.
The city doesn't require permits for sheds under certain sizes. Check exact limits with DHCD. Decks almost always need review. Same for finishing a basement. Don't assume. Baltimore code enforcement finds unpermitted work through neighbor complaints and property sales.
They won't look the other way. The work must still meet code even if you skipped the permit. That creates real problems later.
What Happens If You Skip the Permit in Baltimore?
Baltimore doubles down on unpermitted work. You'll pay retroactive fees at higher rates. The 5% Building Code permit tax still applies. Stop work orders come fast if inspectors spot activity.
Fines add up daily in some cases. The city can require you to tear out work that doesn't pass inspection. Nobody wants that bill. Property sales get messy too. Title companies flag missing permits.
I spent hours digging through the enforcement sections of the 2024 Baltimore City Building Code. The rules aren't vague. They just aren't convenient. Pull the permits up front. The hassle beats the alternative.
How Long Is a Building Permit Good For in Baltimore?
Baltimore permits don't last forever. Most expire after six months of inactivity. You must start work or request an extension. Renewal isn't automatic.
The exact clock starts at issuance. Check your approval paperwork for the precise date. DHCD won't chase you but inspectors will notice if work drags. Plan your project timeline carefully.
Don't let it lapse. Restarting the process costs more time and money.
Who Should Pull the Permit in Baltimore?
Your contractor normally pulls the permit in their name. That keeps legal responsibility where it belongs. Homeowners can pull owner-builder permits for work on their own home.
The rules get tighter for electrical, plumbing and HVAC. You might still need licensed trades even as an owner-builder. Never let a contractor talk you into pulling the permit yourself. That setup rarely ends well.
Section 109 draws the lines clearly enough.
Chuck's Take
"I never let homeowners pull permits on my jobs. Insurance and liability stay with me that way. If a contractor in Baltimore asks you to pull it yourself walk away. That never ends clean. Let them do the paperwork they signed up for."
Leonard "Chuck" Thompson, LC Thompson Construction Co.
Baltimore's Square Footage Fee System
Baltimore stands out. Most cities tie building permit fees to project valuation. Baltimore charges interior alterations by affected square footage at $0.30 per square foot. No matter if you spend $15,000 or $50,000.
This kills the incentive to hide costs. It also keeps fees reasonable on high end kitchens. The same $200 square foot kitchen and the $800 square foot kitchen pay almost the same permit total. We modeled both at $156 including the 5% tax from Section 109.7.
The 2024 Baltimore City Building Code adopted this approach with amendments in Ord. 24-437. I had to dig through the PDF to page 17 before the formula clicked. Most cities don't work this way. Baltimore does. That changes how you budget. (The calculator reflects this exact quirk so you don't have to do the math yourself.)
Roof shingle replacement stays fully exempt. Structural roof work doesn't. Know the difference before you start.
Quick Reference · Baltimore Permit Requirements
| Homeowner Task | Permit? | Est. Cost |
|---|---|---|
| Paint interior / exterior | NO | Cosmetic |
| Replace flooring | NO | Cosmetic |
| Replace kitchen cabinets (same layout) | NO | Cosmetic |
| Swap a light fixture (same location) | NO | Cosmetic |
| Replace a water heater | YES | $21.00 Plumbing |
| Add / move electrical outlets | YES | $31.50 Electrical |
| Remodel a bathroom | YES | $94.50 Building, Electrical, Plumbing, Mechanical |
| Remodel a kitchen | YES | $156.45 Building, Electrical, Plumbing |
| Replace / repair roof | NO | Building |
| Build a deck or patio | NO | Building |
| Build a fence (≤6 ft) | YES | $26.25 Building |
| Install solar panels | YES | $26.25 Building, Electrical |
| Replace HVAC system | YES | $63.00 Mechanical |
| Replace windows (new opening) | NO | Building |
∗ Costs are verified for Baltimore, MD from published fee schedule. Always confirm with your local building department.
Internal Comparison · separate trade permits
Compare Baltimore Permit Fees With Related Cities
Use these source-linked city pages to compare Baltimore against other Maryland markets and cities with similar permit fee structures.
Philadelphia, PAAlso uses separate trade permitsBathroom remodel permit package: $201.00 · +$106.50 vs Baltimore
Nashville, TNAlso uses separate trade permitsBathroom remodel permit package: $257.50 · +$163.00 vs Baltimore
Charlotte, NCAlso uses separate trade permitsBathroom remodel permit package: $269.83 · +$175.33 vs Baltimore
Kansas City, MOCross-market benchmarkBathroom remodel permit package: $114.29 · +$19.79 vs Baltimore
Richmond, VACross-market benchmarkBathroom remodel permit package: $144.75 · +$50.25 vs Baltimore
Dallas, TXCross-market benchmarkBathroom remodel permit package: $192.56 · +$98.06 vs Baltimore
Chicago, ILCross-market benchmarkBathroom remodel permit package: $602.00 · +$507.50 vs Baltimore
Phoenix, AZCross-market benchmarkBathroom remodel permit package: $706.00 · +$611.50 vs Baltimore
Permit Guides
Permit Cost and Process Guides
Pricing a specific project in Baltimore? These guides cover what each permit runs and how the approval process actually works.
Building permit cost, every verified city ranked
How much does a building permit cost?
How long does a permit take to get?
When is a permit not required?
Deck permit cost
Roof replacement permit cost
HVAC permit cost
Kitchen remodel permit cost
Solar panel permit cost
EV charger permit cost
Do I need a permit to replace a water heater?
Do I need a permit for an electrical panel upgrade?
How to speed up a building permit
Getting an electrical permit online
What happens if you build without a permit
Before You Build
Budgeting the whole job? Compare real remodeling cost data at TheFatBook, our companion cost index.
Frequently Asked · Baltimore
How much does a building permit cost in Baltimore?
A $25,000 kitchen remodel costs $156 in total permits. That includes building, trades and the 5% Building Code permit tax. The calculator on this page already runs the square footage math for you.
Do I need a permit to replace a water heater in Baltimore?
Yes you need a permit to replace a water heater in Baltimore. An electric unit totals $21 including tax. Gas units route through the fuel burning appliance fee and land around $32. Pull it before you start.
How much is a plumbing permit in Baltimore?
Plumbing permits start at a $26 base in Baltimore. A typical bathroom remodel adds roughly $15 for plumbing plus the 5% tax. The final number depends on fixtures but rarely exceeds $30 for standard work.
Do I need a permit in Baltimore to remodel a bathroom?
Yes you need permits for a bathroom remodel in Baltimore. The total runs about $95 on a $15,000 project. That covers building at the $50 minimum, electrical, plumbing and the mandatory 5% tax.
Why does Baltimore use square footage instead of project value for permit fees?
Baltimore charges interior alterations at $0.30 per affected square foot with a $50 minimum under Section 109. A $25,000 kitchen and a $50,000 kitchen both cost $156 in permits. The city adopted this in the 2024 Building Code to remove incentives to lowball valuations. It makes costs more predictable than valuation based cities.
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