Mechanical, Electrical, and Plumbing Permits

Separate mechanical, electrical, and plumbing permits are often on-demand permits unless the work is extensive.  If the work is part of a larger building project, these permits are usually bundled with the building permit to form a combination permit.

Submission Requirements

  • Completed Trades Permit Application.  This single application can be used for a single trade or trades.
  • Building plans drawn to scale with sufficient detail and clarity to indicate the nature and extent of work proposed, if applicable.
  • Owner/Builder Affidavit, if applying for an exemption from state contractor licensing.
  • Floodplain Elevation Certificate, if in Special Flood Hazard Area.
  • Asbestos Survey for commercial projects where the the building was initially built prior to January 1, 1985.
  • Certificate of Appropriateness if located in a historic district and work conducted on the exterior.

Review Process

Applications requiring building plans will be reviewed within 5 business days for 1- and 2-family dwellings and 10 business days for all other building types once your permit application has been deemed complete and initialized in our system (you will receive a Permit submission Confirmation Letter). Projects where it has been determined that no building plans are required may be issued on demand.


Mechanical, electrical, and plumbing permits remain valid as long as work is proceeding and an inspection has been performed within the last 6 months. If work has halted or been abandoned and no inspection has been conducted within the last 6 months, the permit may be suspended. Extensions may be granted by the Building Commissioner through written request by the permit holder. Extensions are not guaranteed.