About.
“Limitation makes the creative mind inventive.”
— Walter Gropius, 1925
Square Peg Bureau was founded in 2016 by Chartered Architect Tom Irwin. The idea was straightforward - to work directly with clients, bring real experience to every project, and find the best possible solution regardless of size, budget, or complexity.
Before any design begins, we take time to understand what success looks like for you - whether that's unlocking the potential of a site, navigating a complex planning situation, or simply making the most of what you already have.
SPB is a small practice with a collaborative approach - working closely with a trusted network of specialist consultants and, where it makes sense, with emerging talent from the architectural community. The practice is growing steadily, shaped by the projects, people and places it encounters along the way.
Tom Irwin RIBA / ARB
Tom has spent over two decades working across large national practices and boutique studios - experience that gives him an understanding of both the craft and the commercial realities of architecture. Early in his career he was nominated for the RIBA and RIAS Silver Medals. He has since contributed to the profession as a tutor and mentor at several UK architecture schools, and founded SPB to pursue a more direct approach: a genuine investment in every project that comes through the door.
What clients say.
"He blends smart urban design with our commercial goals, navigating the complex UK planning system with ease. Tom added real value to this town centre brownfield site despite tricky market conditions and was a key part of our small consultancy team."
Commercial Development, Aylesbury
"Tom's approach combines resolute attention to detail with a healthy dose of pragmatism. He was relentless in ensuring the project aligned with our expectations as well as his own high standards but also knew when to scale back or simplify. He's a great communicator and is able to make the complex, comprehensible."
House Refurbishment, Finchley
"It was such a mission but due to your help and guidance you managed to get it through. We would not have stood any chance doing it ourselves."
HMO Conversion, Cricklewood
Every project starts with a conversation. If you'd like to talk through where you are and where you want to get to, we'd love to hear from you.