average cost of extending a house
According to a customer the average cost of a home extension is Â£25,000. A Double Storey Extension costs between Â£45,415 and Â£76,000. A Single Storey Extension costs between Â£22,916 and Â£37,000. Planning and Preparation for a home extensions costs between Â£5,132 to Â£10,150.he approximate price of a timber extension to work on is around Â£1200 per square meter based on Evis Build for a 60 square meter rear extension.