One of the priciest transform choices includes adding a bathroom in the basement, which requires hiring a plumber, putting in plumbing and buying the required fixtures. The number of rooms just isn’t all the time an indicator of total residence size. For instance, a 1,000-square-foot home with three bedrooms can cost far less than a 4,000-square-foot open idea with only two bedrooms. If you’ve older pipes, you may need to upgrade them when you put in new walls. You’ll pay on the decrease finish with new additions as a end result of you can run electrical wire earlier than the …