Garage / Carport Permit Requirements in Baltimore, MD

Independent city. Uses Maryland Building Performance Standards (2018 IRC). Licensed trades required. Historic districts with additional review.

Population: 585,708 Code: 2018 Verified: 2026-03-21 5 local rules

When you DON'T need a permit

Small detached garage/carport structures (120 sq ft or less) may be treated as exempt accessory structures in Baltimore, MD.

Source: Maryland Building Performance Standards (2018 IRC)

When you DO need a permit

Detached garages over 120 sq ft require a building permit in Baltimore, MD.

Estimated fee: $300 – $1,300

Typical timeline: About 2 weeks

Source: Maryland Building Performance Standards (2018 IRC)

Attached garages require a building permit in Baltimore, MD. Fire separation from dwelling required.

Estimated fee: $350 – $1,500

Typical timeline: About 3 weeks

Source: Maryland Building Performance Standards (2018 IRC)

Carports require a building permit in Baltimore, MD. Must comply with zoning setbacks.

Estimated fee: $210 – $900

Typical timeline: About 2 weeks

Source: Maryland Building Performance Standards (2018 IRC)

Converting a garage to living space requires multiple permits in Baltimore, MD.

Estimated fee: $265 – $1,125

Typical timeline: About 3 weeks

Source: Maryland Building Performance Standards (2018 IRC)

Zoning Note

Detached garages and carports may require zoning approval for setback and lot coverage compliance. Garage conversions to living space may trigger zoning occupancy requirements.

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Building Department Contact

NameDHCD Office of Permits & Building Inspections
Address417 E Fayette St, Room 301, Baltimore, MD 21202
HoursMon-Fri 8:30am-4:30pm

Frequently Asked Questions

Estimated permit fees for Garage / Carport projects in Baltimore, MD range from $300 – $1,300. Fees vary based on project scope and valuation.

It depends on the specifics of your project. Some smaller Garage / Carport projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.

Working without a required permit in Baltimore can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.

Typical approval time for Garage / Carport permits in Baltimore is About 2 weeks. More complex projects may take longer if plan review is required.

Learn More About Garage / Carport Permits

Read our complete guide covering permit requirements, costs, common exemptions, and the application process.

Read Garage / Carport Guide →

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Disclaimer: This information was last verified on 2026-03-21. Building permit requirements may change. Zoning requirements (setbacks, lot coverage, height limits) are separate and vary by location. Always confirm with your local building and planning departments before starting your project. PermitMint provides general guidance, not legal advice.