Who we are...

CDJM Architects.

We are a small Wimbledon based RIBA & ARB accredited architects studio with a reputation for bold ideas, strong building forms and carefully crafted homes. 

Led by Cecilia D’Avolio & Jonathan Mills, the firm’s commitment to quality is matched only by its integrity for design, culture and attention to detail. 

We work closely with all our clients and local communities who share our passion and aspiration for good design.

architect drawings and plans

Contact Us...

Call / email anytime for a free, non – obligatory initial consultation to discuss your project.


Extension, Commercial & New Build Architects

From mixed-use housing developments to domestic extensions, we work at all scales across the residential and commercial sectors. 

Architecture & design is always evolving: for us, each project is a tailored response to a unique brief, which can only develop through dialogue with our clients, stakeholders and collaborators, as well as the end users of our proposals.

Every project is initiated by exploring the key drivers for development and analysing their unique design constraints (planning, regulatory, financial, structural, contextual). After defining the clients ambitions and specific parameters, we work closely with you to develop innovative and joyful design solutions.

Each of our projects are characterised by a sensitive approach to materials and intuitive understanding of construction methodology and detailed design. Our process is both meticulous and investigative, being underpinned by research, technical expertise and collaborative dialogue with clients, consultants and constructors.

Modern Two Storey Extension architect London property

Whether you are looking for an extension architect, commercial architect or new build architect covering London and the surrounding areas, we can help. 

What we can do for you...

Architect Services


New Build Developments

As New Build Architects, we design & deliver ‘one off’ homes to developer led ‘mixed use’ property developments.


Extensions & Conversions

From converting bungalows into multi story properties to extending townhouses, offering them that much needed new lease of life.



Using our town planning experience, we offer master planning as one of our many services.

Most Recent

Our Projects

A selection of some of our latest commercial, extension and new build architect projects.