Today thanks to advanced plumbing and modern technology the bathroom may well have evolved as far as it can. With luxury steam rooms and hydrotherapy baths it's difficult to imagine how bathrooms could get any more sophisticated. That said the bathroom like any room in the house is ever changing in terms of design trends.
Quite often with the hectic lifestyles of most families more than one bathroom is necessary to prevent irritation and stress when both husband and wife and perhaps even children need to get ready to leave the home at the same time. Adding a half bath helps but with careful planning the same space allocated for a half bath can be utilized for a second small bathroom. This permits more than one family member to bathe at the same time while a half bath is limited in function. Taking the time to develop a small bathroom floor plan is key to producing a satisfying and useful design. Floor plans do not have to be elaborate undertakings as a simple sketch that includes certain points will suffice.
A full sized standard tub or combination shower and tub measures 32 inches by 60 inches. A standard toilet is 20 inches by 25 inches and the vanity is usually 19 inches deep and space will determine the width of the sink vanity. There are many small bathroom floor plans that easily incorporate these fixtures in a bathroom as small as 5 feet by 8 feet. Of course a larger area naturally provides more options. An additional 2 feet of space will allow for a very useful linen closet perhaps placed at the end of the tub. However storage can be taken into account to include spacious medicine cabinets and narrow depth cabinets for the wall above the toilet. Lighting and ventilation must also be looked at ahead and if a window does not already exist fluorescent lighting is available in abundant styles some with ventilation fans incorporated into the design.