How much does a kitchen extension cost to build?

modern kitchen extension with kitchen island
(Image credit: bradley van der straeten / French & tye)

Planning on adding space in the form of a new kitchen? Kitchen extension costs can be a little unpredictable but our guide is here to bring clarity and help you get organised when budgeting for this exciting project. 

Kitchen extensions are one of the most common type of home improvement, often adding value to a house instantly, allowing for existing spaces to be reorganised, bringing in extra natural light and providing a relaxed space to dine in as well as somewhere from which to work from home and entertain when the working day is done.

tim phillips
Tim Phillips

Tim is a quantity surveyor and runs He has almost 30 years of experience across the commercial and residential construction sector. @timphillips71

Tim Phillips is an experienced senior quantity surveyor and estimator and has worked in the construction industry for over 35 years. He has worked on many varied projects in this time, for corporates, public bodies and private residential clients, managing multi-million budgets. 

For the past 13 years, Tim has worked on a freelance basis, whilst managing his rental property portfolio. He has extensive experience of undertaking his own full-scale house renovations. He is also a speaker and expert at the Homebuilding & Renovating Shows.