Skylights are popular in loft conversions and extensions in general.
They can save a great deal of energy – electric lights will not have to be used if a Skylight can provide a room with natural light.
A word of warning regarding Skylights
If a Skylight is poorly constructed or installed it may leak and cause structural damage to a home. Furthermore, any single-pane Skylight may weep with condensation. If you are buying a home with a Skylight, make sure that it is checked properly by a Surveyor.