Tommy Jay Architects Ltd
London-based architectural practice,
specialising in sustainability, heritage and the home

Architectural Services
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TJA offer end-to-end architectural services from concept to completion:
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Measured surveys and briefing drawings
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Feasibility studies and concept design
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Planning applications for challenging sites
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Working with Listed buildings and Conservation Areas
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Visualisation for fundraising and marketing
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Coordinating with engineers, builders, planning officers, etc
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Drawings and schedules for pricing
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Project management
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Administration of contract between client and builder
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Interior design
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Maintenance and conservation design
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To suit different needs the work can cover a range of requirements or be trimmed to a lite programme.
Sustainability
Whether adapting old housing stock to modern standards or building anew, TJA promote a fabric-first approach by maximising the performance of the building envelope before investing in new MEP equipment such as solar panels. This is about improving air-tightness, heat-loss and moisture management in buildings through strategies such as upgrading insulation, intelligent use of thermal mass, managing solar-gain and improving ventilation. Our design process follows a whole-house approach, ensuring all elements of the building envelope work together to reduce energy consumption and carbon impact, improve the health and comfort of occupants and ensure that the building is resilient and well-adapted to our changing climate. ​
Heritage
We are custodians of our built past and reciprocally the built past must also be custodian of our present. TJA recognise that maintaining this relationship requires care and consideration. Our design approach towards working with buildings of historic significance is underpinned by research. This is about understanding the building's past, carrying out careful analysis of the existing and designing innovatively for the future. The result should be a celebration of both old and new, where heritage is not only preserved but given lasting relevance.
The Home
TJA began with projects for people adapting to new ways of working and being at home in 2020. The architecture of domestic life remains the focus of the practice, working across a range of budgets and typologies - room, flat, maisonette, townhouse, summerhouse, garden, campus and even a Dutch barge. Home means different things to different people and that’s what interests TJA.
The process of creating or adapting your home should be exciting and rewarding. However, people can easily become alienated from this process by the officious language of architects, planners and builders. TJA believe architects should instead be empowering people to shape their built environment, using drawings as a collaborative tool with which constraints and opportunities can be explored and understood - from start to finish - diagram to detail. Good design matters, especially where we live. After all, home is where we begin.​​​
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The Team
TJA welcomed Rebecca Liebermann and Sam Welham to the team in 2024. Tommy, Rebecca and Sam’s prior experience combines as three decades in which they each worked across a range of ambitious cultural projects on challenging and often historic sites. This is an unusual level of experience for a small practice and as a small team TJA can be agile with their time and keep fees competitive.
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Tommy Jay Director BA (hons), Dip Arch, ARB, RIBA TJA began with projects for people adapting to new ways of working and being at home in 2020. Tommy was running things from his living room table and finding work across various budgets and typologies: flat, townhouse, rural home and even a Dutch barge. Home means different things to different people and that’s what Tommy became interested in. Previously Tommy worked for six years at Wright & Wright Architects in London. This involved ambitious library, gallery and museum projects on challenging historic sites, such as Lambeth Palace, St John’s College Oxford and the Museum Of The Home. Creative conservation requires care and confidence and a commitment to the idea that ‘the further back you can look, the further forward you are likely to see’. Tommy founded TJA on this idea. Tommy graduated from Cardiff School of Art in 2010 and Kingston School of Art in 2014. Education in those schools was about neither the grandiose gestures of masterplanning nor the minutiae of facade detailing - it was first and foremost about people. This awoke an interest in architecture as a social art.
Rebecca Liebermann Architect BA (hons), Dip Arch, ARB Before joining TJA, Rebecca previously worked at Haworth Tompkins, David Kohn Architects and Spatial Affairs Bureau. She has experience working across a range of different cultural, and heritage projects which included the Theatre Royal, London, Pembroke College, Cambridge and Theatre Clywd, Wales, as well as a variety of small-scale private and commercial projects in London, Los Angeles and Berlin. Rebecca is an ARB registered architect and completed her bachelor of Architecture at the University of Sheffield, graduating in 2016, before studying her Masters degree at Aarhus School of Architecture, from which she graduated in 2020. At TJA Rebecca has been developing into a project architect role, working on projects at various stages, and also championing the practice’s research into retrofit solutions. Rebecca supports Tommy with aspects of practice management such as new business.
Sam Welham Architect BA (hons), MArch, ARB, RIBA Sam has been an RIBA chartered architect for 10 years, with strong experience leading major schemes in the UK. He was previously employed as an Associate by Purcell Architecture in Oxford, having a particular emphasis on the design and delivery of highly-quality new construction projects for Oxford colleges. He previously undertook practice leadership roles in both design and technical delivery for Purcell Architecture, with a strong hands-on skillset managing multi-disciplinary teams. Sam has a subject matter expertise in complex facade design, advanced computational geometry and digital construction. Sam graduated with distinction from The Bartlett School of Architecture in 2012, studying MArch Architecture. Positive working relationships are always a priority, with respect, professional rigour and enthusiasm for architecture underpinning his approach to professional practice. At TJA Sam has been working on a large project for a Grade II Listed house in Chelsea and also champions the practice’s technical design systems.
Credentials
RIBA chartered practice​: Tommy Jay Architects Ltd
ARB registration number: 091318 I
UK company number: 13288725​​
Reference: A phonecall with one of our current or former clients is easy to arrange. A lot of our work comes from existing clients recommending us, or inviting us to explore subsequent projects with them. We believe this is down to the following factors:
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Personal touch: Tommy drives every project – we have no B-list work.
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Value for money: Being a small business means we can be agile with our time and keep our fees competitive.
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Experienced: Tommy, Rebecca and Sam’s prior experience combines as three decades in which they each worked across a range of ambitious cultural projects on challenging sites, requiring care and confidence.
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Connected: Tommy has a network of talented collaborators, covering structural design, building services design, landscape design, construction, conservation, party wall notices, cost planning, funding, real estate, antiques, fire safety, trees, ecology and so on.


Let’s Talk​
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Are you looking for some initial advice about a project? We'd be delighted to chat and suggest ways forward. Talking points typically include:
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Project milestones
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Costs and resourcing
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Planning queries
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Site challenges and opportunities
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Conflicting requirements
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General curiosity
Please feel free to get in touch by calling us or emailing us. Details below.​​​​
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