About Us

Sacks Jones O’Neill Architects is a London based architecture practice. With over 20 years’ combined experience, we decided to consolidate our individual strengths and expertise in 2023 to establish a new practice, with a focus on private residential architecture. We pride ourselves on taking a personal approach to every project, investing time getting to know homeowners, ensuring a thorough understanding of their brief. Each project is treated as unique, for which we provide bespoke solutions, reflecting the individuality of our clients.

With a passion for sustainability, we integrate eco-friendly practices into our designs, promoting a balance between architecture and the environment. Our aim is to create beautiful, functional spaces that enhance the daily lives of our clients. We offer a comprehensive service, from concept to construction completion, ensuring a seamless and rewarding experience for our clients.

Ellen Sacks-Jones

BA (Hons) BArch (Hons) DiplArch ARB RIBA

Ellen has a wealth of experience in private high end residential architecture, having been a senior associate at Matthew Giles Architects, and previously an associate at Giles Pike Architects for 13 years. Prior to that she specialised in education, at BHM Architects in South West London, and FaulknerBrowns Architects in Newcastle (where she and Paul met).

Ellen studied architecture at Newcastle University, gaining her part I and part II qualifications there. She returned to London to qualify as an Architect with a diploma in Architecture from the Architectural Association. 

She is an excellent project manager, with in depth technical knowledge and exemplary design skills. She enjoys forming strong relationships with clients, contractors and consultants to ensure the best possible, bespoke outcome for each project. She also has a keen interest in sustainable practice.

Outside of architecture Ellen enjoys going to the theatre, singing as part of an amateur choir, and spending time visiting London’s museums and galleries with her young daughter. 

Paul O’Neill

BA (Hons) BArch (Hons) MSc ADPPA MRIAI ARB RIBA

Paul is a talented designer, with strong project management and problem-solving skills. Known for his personable nature and adept communication skills, he has earned a reputation for helping projects to be delivered on time and on budget.

Having set-up and run his own award-winning practice (Paul O’Neill Architects) in the Republic of Ireland since 2010 Paul has gained extensive experience in residential, healthcare and education projects. He has been responsible for the design and delivery of a number of high-profile buildings, including the Kells Primary Care Medical centre and Park Ri, Kells. He has also worked on a number of education and residential projects in the UK. As well as being a chartered architect, Paul is a licentiate member of the Royal Town Planning Institute (RTPI) and holds a professional qualification in conservation architecture. 

Paul gained his Part 1 qualification at the University of Liverpool, and then moved to Newcastle University to complete his Part II, alongside a masters degree in Town Planning. Following this he worked for FaulknerBrowns Architects for two years (where he met Ellen!), and was a visiting tutor at Newcastle University. His Part III was completed with RIBA North West.

In his spare time Paul is a enthusiastic amateur potter. He also enjoys travelling, cooking for friends and family, and live music.