When is a building permit required?

The Zoning Ordinance of Sandown and the New Hampshire building codes state:

"It shall be unlawful to construct, add to, alter, remove or demolish, or to commence construction, addition, alteration, removal or demolition of a building or structure or install plumbing, sanitary disposal systems or electrical equipment, or modify the same for the operation of a building or structure or to convert any summer, recreational or other similar seasonal dwelling into a dwelling which is or is intended to be suitable for year-round habitation without first filing with the building official an application in writing and obtaining a formal permit."

A permit is required for any construction, addition, remodeling or demolition

Re-roofing, re-shingling, vinyl siding and replacement windows require a permit

Residential zone structures must be set back from the property line at least:

  • 30 feet to the front
  • 15 feet to the side
  • 10 feet to the rear
  • 50 feet from wetlands 

Business zone structures must be set back from the property line at least:

  • 35 feet to the front
  • 20 feet to the side
  • 20 feet to the rear
  • 50 feet from wetlands 

From the property line not the edge of pavement!!! Corner lots have two fronts and two rear lines!

Swimming pools require a building and electrical permit - Pools must meet setbacks!!!

Sheds require a permit!

Owner occupants of single family dwellings are allowed (if qualified) to do their own electrical and plumbing!!

Fences do not require a permit, but must be on your side or your property line!

Work started without a permit may be subject to fines of double the permit fee!

If you have any questions, please call Building Inspector, Bob Bogosh at 603 867-6085