Residential Additions Permit Application


Permits are obtained by submitting an electronic application on the Permit Portal

The following steps must be followed when using the Permit Portal:

  1. Create a New Account (click on the Login or Register button) or if you already have an account (sign In through this button). Please note for new account registrations: After account is approved, an email will be sent from [email protected] with further instructions. 
  2. After you sign on, click on the Permit button.
  3. Find the permit that you are looking for and click on the Apply blue button to start the process.
  4. Fill in all information leaving no blanks.


$50.00 + (construction cost x .0075) + City Impact Fee 

Building Residential Addtion Permit Application


- Site Plans, existing and proposed 

- Building Plans 

- Electrical Plan Review Permit Application 

- Residential Electrical Permit Application (usually submitted separately by electrical contractor)

- Life Safety Review/Sprinkler Permit Application (if house is sprinklered)

- Residential Mechanical Permit Application (if new mechanical/HVAC work is proposed or HVAC with duct work alterations) 

Note: All documents shall be uploaded via the online permit portal in PDF format. Building plans shall be uploaded as one single PDF file. Do not upload individual building plan pages. 


Plans for additions of two-stories or more must be signed and sealed by an architect or engineer licensed in the State of Maryland.  Mechanical Permit application is only required if new HVAC units are being installed or if existing HVAC will be replaced and duct work will be altered.  Life Safety Review/Sprinkler Permit application is only required for sprinklered homes. However,  If the square footage of the addition increases the gross square footage of the existing home, exluding garages and crawlspaces or if the cost of the addition excceds 50% of the assessed value as shown on the most recent tax assessment for the State Department of Assessments and Taxation of the building, a sprinkler system is required. Additions must meet all setback and lot coverage requirements based on the property's zoning. If the addition increases the gross floor area of the residence by 50% or more, a Special Exception from the Board of Appeals is required.

Permit Category

Residential Home Improvement

Fire Marshal & Permit Services

The Department of the Fire Marshal and Permit Services (FMPS) is divided into two Divisions who are responsible for the management and enforcement of the City’s codes and ordinances as it relates to wide range of areas, to include building and property standards, fire and life safety standards, rental housing licenses and permitting services.