The bathroom is the room in the house that is dedicated to personal hygiene. It is the room where a person cleans their body and uses the toilet. The bathroom can have the following fixtures and fittings: bathtub, shower, toilet, sink, mirrors, tiles etc. There are different types of bathrooms depending on the fittings and fixtures in the room. For instance there is the powder or cloakroom, which has a toilet and a sink and is usually close to the living room and is used by guests. There is also the shower room or cubicle with a shower but no bathtub. There is also the en-suite bathroom, which is a bathroom connected to the bedroom. The Jack and Jill bathroom is a bathroom that is connected to two bedrooms.
When designing the bathroom the first thing you should do is look at the plumbing system and work around it for you do not want to later have to put in new pipes to fit your design. The water used in the bathroom for bathing and flushing the toilet accounts for around 50% of all the water consumed in the home. The water can either be hot or cold; and to facilitate this you need to install separate pipes for both. When you flush the toilet or use the shower, the waste water should be moved to sewer line or a septic tank.
You should consider how many people will be using the bathroom and at what time; for if they are using the bathroom at the same time, then it may require some extras such as double sinks, separate bath and shower, enclosed toilet etc. (This consideration is for homes where people are sharing one bathroom). Also consider who will be using the toilet; be it children or elderly, so that the bathroom fixtures can fitted in such a way that they are easy to reach and use.
You will want to design your bathroom to blend well with the style (color, fixtures, tiles) of the rest of the house. The material used in the bathroom, such as tiles and paint, should be easy to clean, slip resistant and water resistant.