James Kay Architects Ltd is a Registered and Chartered Architect practice based in London.

We offer a fresh and straightforward approach to architecture – and offer a range of design packages for clients looking to undertake a project which may include a kitchen extension, basement or loft conversion.

The team works hard to exceed client expectations and produce designs which not only create amazing new spaces, but are also practical and affordable to build. Our team will work with you to maximise the space available and make sure as much of your precious budget is invested in the build.

We have completed in excess of 300 projects, and have an unrivalled success rate at gaining planning permission for new build houses, extensions and loft conversions across London. Please contact us if you would like us to visit your property for an initial consultation, or visit our design studio in Eltham, Greenwich.


Architecture & Interior Design
Planning & Listed Building Consents
Building Regulations Approvals
Tendering & Appointing Contractors
Project Coordination / Contract Administration

A selection of our latest completed projects. 

We are a boutique London architectural practice offering a rare blend of practical, hands-on experience and creative design flair

Contact us to discuss your project and to arrange a FREE appointment.