N.H. Code Admin. R. Bea 502.34
“Missing middle housing ordinance” means a standalone ordinance or section in a zoning ordinance that allows for a diverse range of house types including duplexes, triplexes, quadplexes, and other multi-family housing typically with between 2 and 8 housing units per structure, or more in higher density locations.
Source. #14043, eff 8-8-24