DescriptionList of the different types of extensions included in a particular option. For information on what each extension type means, click on the text or on the glossary button.
Add. AreaAdditonal Floorspace
Total AreaThe total floorspace of the proposed extensions and the existing house.
Approx CostThe cost for all works for this particular option. It is calculated by taking the additional floorspace and multiplying it by the average cost per square metre for building works in the given postcode.
Add. ValueThis is the calculated additional value created by the proposed extensions, calculated with the help of Accuval (https://accuval.co.uk/).