Exorbitant housing costs, a growing desire for multigenerational living, and the “simple living” trend have elevated accessory dwelling units as a viable housing alternative for all demographics.

ADUs have been around forever: tiny abodes atop garages on alley-loaded properties … intriguing cottages tucked behind grander houses … miniature structures mimicking the mother House connected by a walkway. When you look closely, particularly in neighborhoods built before the 1950s, you will see them everywhere.