RSA 674:16 Grant of Power.

I. For the purpose of promoting the health, safety, or the general welfare of the community, the local legislative body of any city, town, or county in which there are located unincorporated towns or unorganized places is authorized to adopt or amend a zoning ordinance under the ordinance enactment procedures of RSA 675:2-5. The zoning ordinance shall be designed to regulate and restrict:
(a) The height, number of stories and size of buildings and other structures;
(b) Lot sizes, the percentage of a lot that may be occupied, and the size of yards, courts and other open spaces;
(c) The density of population in the municipality; and
(d) The location and use of buildings, structures and land used for business, industrial, residential, or other purposes.
II