Few towns in England hold such an obvious conversation between past and future as Bicester does right now. Walk through the old market centre and you are among limestone buildings that have stood since the sixteenth century — the Church of St Edburg, the Old Vicarage dating from around 1500, houses of coursed rubble and plain tile that have weathered through five hundred years of Oxfordshire seasons. Then drive ten minutes north-west and you arrive at one of the most ambitious sustainable housing developments in the country, where homes are built to true zero carbon standards with solar panels on every roof, rainwater harvesting, and energy performance that makes conventional new builds look like relics of a different era.
That tension — or rather, that opportunity — is what makes Bicester so compelling to work in as an architect. I founded Gresford Architects in London in 2006, and our practice is now based in Oxford, close enough to Bicester to have watched this transformation unfold. A town that has to reconcile centuries of building tradition with the urgent demands of sustainable growth is asking exactly the right questions, and those are the questions we have spent almost twenty years learning to answer.
Sustainable Architecture with Award-winning Credentials
Gresford Architects is a RIBA Chartered and ARB Registered practice with a particular depth of expertise in the kind of work Bicester demands — heritage-sensitive renovation on one hand, high-performance sustainable design on the other. I am a member of the Passivhaus Trust and The Green Register, accreditations that reflect a genuine commitment to building science, not a marketing exercise. Our project The Deerings, a certified Passivhaus home in Hertfordshire, won a RIBA East Award in 2018. That same year I was a finalist for Sustainability Architect of the Year at the Building Design Awards. The Old Water Tower was shortlisted for the RIBA South Awards in 2016, and in 2025 I served as a judge for the British Homes Awards.
My membership of the Society for the Protection of Ancient Buildings shapes how we approach the other side of the work — the careful, patient business of understanding historic buildings before changing them. Bicester has over a hundred listed buildings, and its town centre conservation area contains a remarkable variety of styles and materials sitting side by side, from medieval limestone rubble to Victorian ashlar. That kind of layered history demands architects who can read a building's fabric, respect its logic, and find ways to bring it into the present without losing what makes it valuable.
Architectural Services Shaped by How Bicester Is Changing
Sustainable Design is the thread that runs through everything we do at Gresford Architects, and nowhere in Oxfordshire is it more relevant than in Bicester. The North West Bicester eco-town — designated as one of only four government-backed eco-towns in 2009, and the only one ultimately built to the original zero carbon standards — has demonstrated what is possible when sustainability is designed in from the start rather than bolted on afterwards. We share that conviction entirely. Every project we take on, whether a new build or a renovation of a listed cottage, begins with the same question: how do we make this building comfortable, efficient and built to last?
PassivHaus Design delivers the most rigorous answer to that question. A Passivhaus home achieves extraordinary thermal comfort and exceptional indoor air quality through meticulous attention to insulation, airtightness and ventilation — not through complex mechanical systems, but through getting the building envelope right. The result is a home that maintains stable, comfortable temperatures year-round with energy bills that are a fraction of what a conventional house demands. For anyone building new in Bicester, where the ambition for sustainable housing is already woven into the town's identity, Passivhaus represents the standard to aim for.
For existing homes in Bicester, EnerPHit offers a comparable transformation. Many of the houses built during the town's twentieth-century expansion — solid, well-constructed homes in Langford Village, the Highfield estate, or the streets around Bicester North station — were built long before current energy standards existed. EnerPHit is our approach to deep retrofit: a carefully engineered upgrade to the building's thermal envelope that dramatically reduces energy demand while making the home noticeably more comfortable to live in. It is one of the most impactful things an architect can do for an existing building.
Extension Design is a natural fit for a town where many families have put down roots and want more space without leaving. The best extensions do not simply add square metres — they rethink how a home works, bringing in light, improving flow, and creating a relationship between inside and outside that transforms everyday life. In the conservation area, proposals must demonstrate genuine understanding of the historic setting, and that is exactly the kind of design challenge we relish.
Renovations in Bicester's older buildings require a different kind of attention. The limestone rubble walls, lime mortars, and plain-tile roofs that characterise the town's historic core have their own material logic — they breathe, they move, they respond to moisture in ways that modern materials do not. Working sympathetically with these buildings means understanding their construction before proposing changes, and that patient, forensic approach is central to how we practise. New Build Design across the wider town offers the freedom to start from first principles — to design homes that are not only kinder to the planet but also more comfortable to inhabit, more economical to run and more joyful to live in.
Beyond the town, the countryside around Bicester — the gentle farmland stretching towards the Cherwell Valley and the villages of Chesterton, Wendlebury, and Ambrosden — is the kind of landscape where Paragraph 84 of the National Planning Policy Framework comes into play. Paragraph 84 allows truly exceptional homes in the open countryside where the architecture genuinely enhances its setting. It is a demanding policy, and deliberately so, but for the right site and the right client it opens a remarkable opportunity.
Whether you are considering a Passivhaus new build, a sensitive extension in the conservation area, or a deep retrofit of an existing home, I would welcome the chance to talk it through. The best architecture starts with a conversation — about the place, the building, and the way you want to live.
