Residential Additions

Fee

  • $50 plus (construction cost multiplied.0075) plus City Impact Fee
  • Building Residential Addition Permit Application

Documents

  • 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 sprinkled)
  • 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.

Information

Plans for additions of two-stories or more must be signed and sealed by an architect or engineer licensed in the State of Maryland. The 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 sprinkled homes. However, If the square footage of the addition increases the gross square footage of the existing home, excluding garages and crawlspaces or if the cost of the addition exceeds 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