At James Kay Architects Ltd, we are a Registered and Chartered Architect and Interiors practice based in London, specialising in creating exceptional and luxury designs for a variety of projects. Whether you're considering a kitchen extension, basement conversion, loft conversion, or any other architectural endeavour, we offer a range of bespoke design packages tailored to your specific needs.

Our Approach

We pride ourselves on our fresh and straightforward approach to architecture. Our team of dedicated architects strives to exceed client expectations by delivering designs that not only create amazing new spaces but are also practical and affordable to build. We understand the value of your investment and work closely with you to maximise the available space while optimising your budget.

Our Expertise

With a wealth of experience, we have successfully completed over 1500+ projects across London and the South East. We have established an unrivaled success rate in obtaining planning permission for new build houses, extensions, and loft conversions. We have worked with clients in various boroughs, including Greenwich, Bexley, Bromley, Chislehurst, Lewisham, Southwark (Dulwich Estates), Lambeth, Westminster, and Sevenoaks, Kent.

Visit Us

We invite you to contact us for an initial consultation.

Our team is available to visit your property and discuss your architectural aspirations. Alternatively, you can visit our design studio conveniently located in Eltham High Street, Greenwich, London SE9. Our studio is a creative space where we collaborate and bring ideas to life.

Contact Us

To embark on your architectural journey with James Kay Architects Ltd, please don't hesitate to get in touch.

Contact us today to schedule an initial consultation or visit our design studio in Eltham High Street, Greenwich, London SE9.

We look forward to working with you and transforming your space into something extraordinary.

Improve Your Space with James Kay Architects Ltd



Architecture & Interior Design
Planning & Listed Building Consents
Building Regulations
Tendering & Appointing Contractors

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.