Middle housing is a range of housing types that exist between a stand-alone homes and large apartment buildings. This includes modest homes such as duplexes, triplexes, row houses, and townhomes.

Unfortunately, Middle Housing types are illegal to build in areas that are zoned single-family residential. Cities across the US are re-legalizing middle housing by lifting laws that exclude these housing forms in single-family zones in an attempt to address housing shortages and correct historic wrongs of segregating neighborhoods.