My wife and I are looking at a house that doesn't have a bath on the 1st floor. There is a small area in the living room/front entry that has a coat closet that could be converted to a small half bath. The location is on a wall adjacent to the kitchen and the basement below is unfinished (ie plumbing should be fairly easy), but the closet floor area would have to be expanded with a new wall (equaling about 6 linear feet). This would create probably a 4'x5' bath.
Can anyone give me any estimates of what is may cost to construct this new bath? And any ways to reduce costs as much as possible?