Side return extension costs — how much will it cost you to add space and will it be worth it?

Side return extension kitchen diner with rooflights overhead.

While side return extension costs can be a little kinder on the bank balance than some other types of extension, there are definitely certain factors that send them soaring – but being aware of these from the offset helps enormously.

Your individual extension ideas need to be based on the style of your house, as well as what you want to use your new space for – but in many cases, side return extensions work brilliantly.