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BUILD COST CALCULATOR
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A house extension could add value to your home. If you are planning to extend your property why not use our free cost calculator to get a quick estimate of your build costs.
Once you have an idea of the financials it’s time to make your extension a reality. Book your ticket to Grand Designs Live for access to 450+ companies specialising in products and services in build, interiors, kitchens, bathrooms, gardens, technology and more!
This information is computer-generated and has been designed to give a useful general indication of costs. We recommend that you obtain exact figures from a specific lender before committing to any mortgage.