Bathrooms are one of the best rooms in the house to use a skylight. Improved by additional natural light, bathrooms become more comfortable during daylight hours. Even when the sun has gone down, the provision of a skylight in bathroom has a positive effect.
Flooded With Light
If you want a bathroom that is flooded with natural light go for a large a skylight as you can get away with, given any structural considerations. Larger bathrooms, that already have big windows, or even glazed doors, can still have a noticeable improvement by the addition of skylights.
Unbroken glazed panels, which extend from one wall to another, are particularly effective. Remember to allow the light to continue to bounce around the room.
Use internal glazed partitions where possible, but install frosted ones in places where you need to consider personal privacy. If you cannot decide how to orientate a large skylight in your bathroom, a good approach is to opt for one that lines up with the bath tub directly beneath it.
Not all bathrooms will allow for a large skylight that dominates the room. Make sure that each can be opened independently so that you can get good ventilation in the bathroom. If your bathroom has a pitched roof, a classic design idea is to go for double skylights that meet in the middle at the apex of the room.
More light coming into a room means that you can achieve more with the textures of your surfaces. More subtle approaches to texture can be drawn out if you simply have enough light to see what is going on.