Knowles works with a number of prestigious London-based architects and we are pleased to include GMA Architecture into our portfolio. GMA Architecture have provided their precise and stylish designs for our retrofit basement constructions on a number of period properties across London.

Knowles has been working in partnership with structural engineering consultancy firm, Axiom Structures on a number of high profile retrofit basement projects including a large-scale double-depth basements in Notting Hill, alongside some projects in the prestigious Westside areas of London as well.

Thinking of adding a basement extension to a London property but the space under the house is not quite big enough? Why not extend the basement further with the space underneath the garden?

Specialising in working with Listed Buildings and inside Conservations Areas to create modern and functional spaces without compromising on the originality of some of these old buildings, FT Architects have recently worked with Knowles on three such properties in London: Berkley Square, Addison Road and Lonsdale Road.

Knowles has worked with talented London-based chartered practice, Greenway Architects, on a wide range projects including basement builds under existing properties. This expert collaboration has resulted in some stunning basements throughout London.

As an architect undertaking a retrofit basement project, your sole purpose it to create the ideal space for both your client, and the property. In order to do this properly, it helps to know what kind of questions you will need to have answers to before you begin.