I. A municipality may permit an innovative housing structure to be placed or erected on an individual house lot where single-family dwellings are allowed, or to be used as an accessory dwelling unit pursuant to RSA 674:72, subject to all applicable land use requirements. II. Innovative housing structures shall be treated as single-family dwellings or accessory dwelling units for zoning purposes and shall meet all applicable state laws and regulations regarding drinking water supply and wastewater treatment and disposal.