If you have sufficient space, a rear extension has enormous potential to change the very nature of your house. This type of extension can be combined with internal alterations to open your kitchen up to your back garden and create a light, airy, open-plan area that can be used as a combined kitchen, dining, living and entertaining area.
Turning your kitchen and back area into more of a focal point can have immense advantages but costs also escalate quickly so it's necessary to have a thorough, well-costed plan in place.