Items That Require a Building Permit

Please note: mechanical, gas piping, and oil burner permits are handled by Fire Administration.  Please do not submit a building permit application for these types of permits.  Any questions, please call Derry Fire Administration at (603) 432-6751.  

Building Permits are required for the following:

New Construction - Residential, commercial, industrial

Additions to Existing Structures - Residential, commercial, industrial

Garages - Attached or detached

Interior Renovations - Residential, commercial, industrial

New or replacement decks, screen porches

Sheds (Any size)

Swimming pools, above or inground

Electrical - Any electrical work performed (new or repairs) requires NH Licensed Master Electrician to obtain permit

Plumbing - Any plumbing work performed (new or repairs) requires NH Licensed Master Plumber to obtain permit

Wells - New or replacement

Septic Systems - New installations or replacement systems

Chimneys

Razing of any structure

Signs - New or replacement

Yearly licensing and inspection of all existing Mobile Home Parks