Adrian Wild is managing director of HBXL Building Software, which powers the Build It Estimating Service. The service will enable you to calculate your project costs right down to the last roof tile. Find out more at www.self-build.co.uk/estimate
Extending is a fantastic way to add space and make your home work more effectively for you. But as with any major project, one of the key questions you’re likely to ask is what it will cost: and this miniseries aims to give you a starting point for your scheme.
Developed by the Build It Estimating Service, the indicative costs given in this first instalment are based on a singlestorey addition suitable for a kitchen, with a gross internal floor area (GIA) of 25m2. Prices include all the infrastructure (including cooker and socket circuits, hot and cold water supply, and extension of the heating system).