Build Cost Calculator

Interested in building a house or an extension, why not use our free build cost calculator get a quick estimate of your project?

Estimates exclude VAT as you may be able to claim the VAT back once your project is complete.
Click here to find out more

Feel free to contact our dedicated self build team if you require further information on:

0800 032 8968 or


Average Build Cost Guide

Enter information below and click Calculate to view an indication of build cost based on the project location, build quality, and use of contractors.

Please note that this guide is not intended to be used as an estimating service for specific projects. The results displayed are based on the Homebuilding & Renovating Build Cost Calculator.

For an accurate and detailed estimate of costs for your self-build or renovation project please contact the self build team on 0800 032 8968 or e-mail

Average Build Cost Guide
  1. Number of storeys
  2. Project location

  3. Build quality

  4. Contracted to