No residence building or dwelling unit containing two or more sleeping rooms shall have such room arrangement that access to a bathroom or water closet compartment intended for use by occupants of more than one sleeping room can be had only by going through another sleeping room, nor shall the room arrangement be such that access to a sleeping room can be had only by going through another sleeping room or a bathroom or water closet compartment. Existing one-family dwellings where no lodgers are occupants may be exempt from the requirement concerning access through a first sleeping room. (Prior code § 17-1-38)