Look to see if the tiles are in their places. Where there is fault like chipping of the tiles or some have removed from their positions, consider replacing them.
You can also look to see if there is any mould between the tiles or by the sides of the bath. If there is, then find the time to get the correct kind of solvent and remove it. This will brighten up things.
In you are in an owner-occupier apartment, consider painting the walls with waterproof bathroom paint. For best result, it is better to go for a light colour that is soothing.
Such colours, which include white, cream, peach, yellow, magnolia or pale blue are all good colours that will attract light but not be too obvious.
Ensure that the bathroom is airy. This can be achieved by creating a bigger window. Use some beautiful small inexpensive accessories that that can jazz up the place such as rugs, curtains, towels, flowers, soap holders and mirrors. Making the bathroom sparkle does not really need much time or effort. A little imagination is just what is needed to give the bathroom a facelift.