Baltimore Window Replacement Permit Requirements
Replacing windows in Baltimore is not just a design choice; it’s a regulated construction activity. Most projects that replace, alter, or remove exterior features require a permit, and some properties also need CHAP review in historic districts. The City processes applications in the E-Permits portal, which tracks status from review to issued permits. This guide explains what to verify, how to apply, and how to stay in compliance.
Introduction to regulations
You’ll need a permit when replacing windows, changing an opening, or removing a window to create a new door. Baltimore City requires permits for construction that alters a structure, and for changes to electrical, gas, mechanical, or plumbing systems. Minor repairs may be exempt, but renovations, modifications, and reconstructions require permits. Properties in historic districts must secure CHAP Authorization to Proceed before a building permit can be issued.
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Permit application and process
Here are the key steps to successfully apply for and obtain your Baltimore window replacement permit:
- Create an E-Permits account, complete the online application form with project details, and upload plans if required.
- Verify if special referrals apply, for example CHAP or floodplain review, and then pay fees online.
- Your contractor should be licensed, and you can track review progress and see when your permit is issued.
If you prefer to speak with our team about scope and timing, contact Master Seal to discuss windows and scheduling.
Special considerations for projects
Historic districts in Baltimore City require CHAP review, and an Authorization to Proceed is a prerequisite for the building permit. Projects that change the use of land, add an addition, or involve grading or excavating also require permits. If you live in Baltimore County, permits are required for additions, alterations, and structural modifications, and exterior work on landmarked properties. Always verify local rules before installing or replacing windows.
If you are near Catonsville, explore our options for window installation in Catonsville.
Compliance and completion
After installing windows, schedule any required inspection listed on your permit, keep approvals on site, and follow all notes for compliance. Doing work without a permit can lead to stop-work delays and added fees. For clear information on permit scope and inspections, use the City’s permit and inspections pages and confirm requirements ahead of time.
Quick answers to common Baltimore window permit questions
Do you need a permit to replace windows in Maryland?
Rules differ by city and county. In Baltimore City, replacing windows generally requires a building permit, especially for exterior changes or historic districts, so verify before you start.
What requires a permit in Baltimore County?
Additions, alterations, and structural modifications need permits, with permits also required for exterior work on landmarked or historic properties.
What requires a permit in Baltimore City?
Construction that alters a structure, changes to electrical, mechanical, plumbing, or gas systems, changes in use, grading, and excavating all require permits.
