Simply select the type of renovation you are doing, rooms you are renovating, and input your postcode, then press 'Update'. Then by using the 'Customisation options', you can select your overall finish quality and input the size of your renovation.
Overall finish quality
Total cost estimate (inc VAT)
Our extension cost calculator has been designed alongside industry experts to give you a rough guide for the cost of an extension.
In addition to the labour and build costs, it includes the additional costs you should factor in when estimating the cost of an extension. Our extension cost calculator is simple to use and will give you an instant estimation of what your extension could cost.
The cost of an extension can vary due to your location, size and specification of the extension, so our extension cost calculator allows you to customise based on your project.
Before you start planning your extension, it's important to get a high level view of the cost. Our extension cost calculator will give you an estimate for the overall cost of an extension.
Once you start working with professionals including architect, structural engineer and builder, you will be able to get a detailed view of your extension cost, specific to your project.
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