The ideal place to locate the bathroom (bathing only) as per Vaastu is on the eastern side. In olden days (even today) in villages, people used to take bath in the early morning. Come out of the bathroom, see and worship the "Rising Sun" chanting mantras (hymns).

Nowadays placing the toilet and bathroom combined and even attached to bedrooms is gaining popularity first because of paucity of space, second because of convenience. But there are some basic Vastu principles, which should always be kept in mind.
- Bathrooms should not lie in the Northeast corners of the house.
- The bathrooms and toilets should never be constructed beneath the staircase.
- The toilets should be constructed to the west of the building or the north-west side.
- Bathrooms and toilets should be located at a safe distance from the kitchen and the dining room.
- The WC in the toilet should be in the west, the south or the northwest side of the west.
- The WC should face North-South axis.
- The water pipes, shower, bathtub etc. should be placed in northeast zone of the bathroom.
- Heater, switchboard, all other electrical appliances should be in the southeast direction.
- There should be windows or ventilators in the east or the north.
- Bath should be taken in the west side.
- The water storage of the taps of the toilet should be in the east, the north or the northeast corner. It should never be in the southeast or the southwest direction.
- Mirror should always be on the East wall.
- The dirty linens should be placed in the West Side of the bathroom as setting rays are very harmful for bacteria and kill them.
- If there is almirah, it should always be on the Southwest Side of the bathroom.
- The slope of the bathroom floor should be towards north and east so water drains to the northeast side of the bathroom.
- The suitable directions for keeping the washing machine are southeast and northwest.