We get it, there are so many reasons to want that extra bathroom...for guests to use when they are over, if there is more than one person living in the house it can get dicey when there is only one toilet, etc. But, when it comes down to it, do you really need another bathtub or shower, or just another sink and toilet? According to recent research (and in our experience), whether you are adding a powder room to a small home that only has one bathroom, or you are adding a SIXTH bathroom, the half bath usually does the trick...and it's quite a bit less expensive than adding a full bath! "In fact, if a home has more than five bathrooms, putting in an extra half-bath can do more to raise the price of the property than adding a full bathroom, according to a survey of listings on realtor.com® in late July. The median listing price per square foot for homes with two full bathrooms was 15 percent more than for homes with only one full bath, while homes with 1.5 bathrooms commanded a 10 percent premium over those with just a single full bath, according to the data. But the median listing price for homes with 6.5 bathrooms was 10 percent higher per square foot than for homes with seven bathrooms—suggesting that once a property has a certain number of tubs and showers, the added convenience of an extra toilet may make a bigger difference.