Planning an extension on your property but not sure what kind of costs to expect? Here is a guide covering all factors which impact the cost of a home extension. Ranging from materials and labour costs to additional expenses that often remain unnoticed by many, it includes information about a home extension cost calculated by professional builders in Bristol. It will tell you whether it is cheaper to extend a house in one or two stories, influence of planning permission on your budget, as well as some helpful tips on saving money. Essential reading for anyone considering an extension or renovation in the near future.