Building Cost Calculator

The cost of designing, renovating, extending or building a home varies from project to project.

Factors such as the size, type of materials and complexity all play a part in the final cost. 

Our Building Cost Calculator will help provide a starting point when it comes to considering how much your project might be. It’s only a guide and provides an estimate of the cost of the construction of a new build, an extension or a refurbishment of a property.

It does not include VAT, professional fees or contingency costs.

*An accurate cost can only be provided once drawings and schedules of work are completed.

Step-by-step guide

To use our Building Cost Calculator you will need to consider the following:

Is it:


Is it a basic spec or a high spec? Tick the box that is relevant.


*The complexities of estimating the cost of building a new property, an extension or refurbishment means we can only supply a basic estimate. This is only a guide. By providing your details you are consenting and opting in to us contacting you about your estimate.