An open room most often used as a kids’ play space or bonus TV room.
Finished walls have basic outlets and switches.
Ceiling is painted open framing or
acoustic (drop ceiling) style.

Finished walls, drywall ceiling, and recessed lighting.
Additional outlets and switching options.
May include another space in the form of a powder or laundry room.

Multiple finished rooms, full bathroom,
kitchenette area.
In-law apartment, studio / office space,
home theater.
Recreation simulators, wine cellar.