Basement to Legal ADU: What It Really Takes
- than standard basement finishing.
- Because an ADU isn't just extra room, it must function as a legally independent, rent-generating home.
- Take an average 1,500 square foot unfinished basement.
- A standard finishing project here takes four to eight weeks.
- But upgrading this exact same footprint to a legal ADU pushes the construction timeline to eight to twelve weeks.