RSA 48-B:2 Air Rights.

The governing board of a municipality, when authorized to do so by its legislative body, may lease, at one time or from time to time for a term or terms not to exceed 99 years, upon such terms and conditions as the governing board thereof in its discretion deems advisable, air rights over public streets and ways, public parking facilities and other public buildings, land and waters, owned by such municipality, or in which the public has a right to travel or in which such municipality holds less than a fee interest, excluding any dedicated park land, but including rights for support, access, utilities, light and air, for such nonmunicipal purposes as, in the opinion of the governing board thereof, will not impair the construction, use, safety, maintenance or repair of such streets and ways