ADU: A viable solution for housing challenges?

The Arlington County Board approved zoning changes to accommodate “missing middle” housing units, such as duplexes, triplexes, and small multi-family buildings, in areas designated for single-family homes.
While some argue that this addresses exclusionary zoning and promotes affordable housing, others question the benefits to communities and housing diversity.
Unlike “missing middle” housing units, accessory dwelling units (ADUs) have the potential to help address housin