RSA 674:28 Nonconforming Buildings, Land, or Uses Under Interim Zoning Ordinance.

I. All nonconforming properties in active use when an interim ordinance is passed and adopted may continue indefinitely in their present use.
II. Any and all nonconforming property may be altered and expanded as the business and conditions warrant; providing, however, that any such expansion does not make any existing conforming structure nonconforming within the terms of the interim ordinance; nor shall such expansion bring any building within 35 feet of an abutter's building; nor shall the height exceed the limits as defined in RSA 674:25, IV, (d); nor shall the use of such property be materially altered in purpose.
III. Any and all nonconforming property which is partially or totally destroyed by reason of obsolescence, fire or other act of God may be restored, remode