half bath

[Vicki Gleitz]

how much approximately, would it cost to have someone add a half bathroom to a bedroom? A wall in the kitchen [plaster and cinderblock] would have to be taken down enough to put in a door from kitchen to bathroom.  Also, there would be dry wall with a door for the entrance from the bedroom. This is a tiny one bathroom house and this is the only place I can see where a half bath could be added. 

The house costs my son $30,000. With the work put in it is worth 40 to 43 thousand.  An added half bath would probably add about 7 thousand in value. Would this be possible to do in a way that will not cost more than its' value?