I spent $50K in 2002 for ~ 1000 sq feet. We added a bathroom (and pump), cut the concrete for a legal egress window, added 1 bedroom (with closet), cedar closet, storage under stairs, gas fireplace, beadboard, built-ins, recessed lighting in ceiling, and partial basement kitchen (2 pantries), 19 linear feet of cabinets, sink, refrigerator, microwave. Due to uneven floor, flooring materials are high end vinyl (people think it is tile) and carpet.