Portsmouth, NH · Addition permit

Portsmouth, NH addition permit checklist

7 required items. Read from the town's pages on 09/27/2026.

In the packet (3)

  1. Construction drawings, drawn to scale and dimensioned Inspection Department FAQ
  2. Energy code compliance form (EC-1 or equivalent) RSA Chapter 155-A New Hampshire Building Code (full chapter)
  3. Structural details: framing, beams and headers Inspection Department FAQ

Filed on ViewPoint Cloud (OpenGov) - City of Portsmouth (1)

  1. Building permit application, completed, signed and dated RSA Chapter 155-A New Hampshire Building Code (full chapter)

Only when it applies (3)

  1. Plot plan showing the work and distances to the lot lines (when Does the work change the building footprint or add floor area: yes) Inspection Department FAQ
  2. State permit for the site (driveway, shoreland or wetlands) (when Is any work within 100 feet of a wetland, stream or pond: yes) RSA Chapter 482-A Fill and Dredge in Wetlands
  3. Historic Commission or historic district sign-off (when Is the property in a historic district, or is the building 50 or more years old: yes) ViewPoint Cloud public API - Portsmouth record types and descriptions (JSON)

Check my packet against this list, $79