"Don’t worry if you just have a small space for your bathroom, by saving physical space or by using design techniques to increase the perception of space you will get your small bathroom look more larger...follow these steps" from Momoy.com
1. Change your toilet.
2. Switch up your countertop.
3. Hang cabinets at a comfortable height.
4. Install a pedestal or wall-mounted sink.
5. Install a flat tub with lower walls.
6. Simple shower door or shower screen.