Internally, the "public rooms", like the living room, dining room or parlor are on the ground floor -- generally with more formal rooms closer to the front of the house. The centrally placed front door opens on a hallway with stairs to the upper floor (and sometimes a basement or "powder room" in more modern homes). The kitchen is likely to be at the back of the ground floor. Bedrooms are normally upstairs in a colonial style house. Full bathrooms, that is ones that include a shower or bathtub as well as the toilet and sink, are usually upstairs. Converted space in the attic or basement may be used for casual rooms, like playrooms or dens.