No room in the house is as densely packed with services – electricity, water, sewer – as the bathroom. This density can result in a disorganized, No room in the house is as densely packed with services – electricity, water, sewer – as the bathroom. This density can result in a disorganized, inefficient space. At its worst, it can present a danger for the occupants. Because of this, it pays to know your building code as it relates to bathrooms – before you remodel.Good design rules do not code and they are not required by law. But designing wisely means having a bathroom you will enjoy using. Plus, a well-designed bathroom gives your home added resale value when it comes time to sell.