Garage conversion costs: How to calculate what your project will cost

An architectural drawing of plans for a garage conversion
(Image credit: Getty Images)

Understanding garage conversion costs is the first step in transforming your underutilised garage into a functional living space. A garage conversion is an affordable way of expanding your home and adding value to your property. It’s far less expensive than moving house and can be done for less than the cost of an extension of the same size — after all, the foundations, walls and roof are already there. 

Over time lots of garages become storage spaces for unwanted junk or household tools. So it pays to unlock the potential of these wasted spaces by converting them into additional bedrooms, offices, or home gyms. 

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.

With contributions from