Chicago’s experiment with allowing additional housing units, such as coach houses or in-law apartments, could go citywide under an ordinance that has drawn support from 15 alderpersons.
A lead sponsor, Ald. Andre Vasquez Jr (40th), said the city’s trial run with additional dwelling units, or ADUs, has diversified the city’s housing stock while introducing more affordable units, even though most have been built in neighborhoods that command high rents.