The first critical step in a modern house is – – – plumbing!
Its been roughed in for the Post Office. Components include: the bathroom (shower, toilet, sink), the utility/laundry room (hot water heater, washer/dryer), the kitchen (sink, gas for stove, the refrigerator water line), the living room (gas for fireplace). Its a simple house but even a simple house has lots of need for plumbing if you really want to stay here.