Walk along the High Street in Great Missenden and you quickly realise that the buildings are not quite what they first appear. Several of the houses — including what is now the Roald Dahl Museum at 81–83 High Street — wear neat Georgian facades of red brick, symmetrical sash windows and restrained proportions. But step inside or look more carefully at the rooflines and you find timber-framed structures dating back to the fifteenth century, concealed behind those later frontages. It is a High Street that has been quietly reinventing itself for five hundred years, each generation layering its own architecture over the bones of the one before, and the result is a streetscape with far more depth and complexity than a passing glance suggests. As an architect, that kind of layering — the conversation between what a building shows the world and what it conceals — is endlessly fascinating to me.
Award-winning Architects in Prestwood/Great Missenden
Why Homeowners in the Chilterns Trust Gresford Architects
I founded Gresford Architects in London in 2006, and we now work with clients across the country from our studio in Oxford. I am an ARB registered, RIBA Chartered architect, a member of the Society for the Protection of Ancient Buildings, accredited with The Green Register, and a member of the Passivhaus Trust — a combination that reflects the breadth of work we take on, from restoring medieval fabric to designing homes that meet the most demanding energy performance standards in the world. We restored The Great Barn in Buckinghamshire, a Grade II listed barn where every decision was guided by the existing structure, and we designed The Deerings in Hertfordshire, a Passivhaus home that won the RIBA East Award in 2018. I was a finalist for Sustainability Architect of the Year at the Building Design Awards in the same year and served as a judge for the British Homes Awards in 2025. Our work has been published in Dezeen, The Modern House Journal, Grand Designs Magazine, and the RIBA Journal. That range — from heritage restoration to precision-engineered new construction — is exactly what a parish like Great Missenden and Prestwood asks of its architects.
How We Work with Homes in Prestwood and Great Missenden
Renovations are where our work in this parish would begin most naturally. Great Missenden's High Street is defined by buildings that carry centuries of alteration within their walls — the Church of St Peter and St Paul, Grade I listed and dating from the fourteenth century, stands alongside timber-framed inns and Georgian-fronted houses, while the remains of Missenden Abbey, founded in the twelfth century, speaks to the deeper history. Even the smaller buildings — fifteenth-century timber frames behind eighteenth-century brick, medieval floor levels beneath Victorian additions — carry that same layering. Prestwood, half a mile to the west, offers a different character with twenty-eight listed buildings spread across a more dispersed form that grew from woodland clearance and common land. Working with buildings like these requires patience, technical knowledge, and a genuine respect for what is already there. My wife Phoebe is a conservation architect, and her approach shapes ours: she reads each building like an archaeologist reads a site, understanding not just what it looks like but how it got there — why the flint came into the brick, which floor level is original, where the settlings and shifts have occurred across centuries. This forensic reading means that when we renovate, we are not imposing a restoration fantasy onto the building — we are listening to what it tells us about what it wants to become.
EnerPHit is the retrofit standard we use when homeowners in Prestwood or Great Missenden want to transform an older home's energy performance without compromising its character. Many of the houses here are solid-walled and thermally inefficient — built before energy performance was a design consideration. The brick and flint cottages that line the Missenden High Street, the Victorian villas in Prestwood, the Georgian townhouses — all of them leak heat through their fabric and rely on expensive mechanical heating to stay warm through the winter. EnerPHit addresses this through carefully detailed internal or external insulation, improved airtightness, and mechanical ventilation with heat recovery, bringing the building close to Passivhaus levels of comfort. In the conservation area, the external appearance stays untouched; the change is felt by the people living inside, in warmth, in quiet, in dramatically reduced energy bills.
Extension Design in this part of the Chilterns requires a sensitivity to materials and scale that generic design simply cannot provide. The local palette is chalk, flint, and red brick — materials that tie the built environment to the geology beneath it. An extension to a Victorian cottage in Prestwood or a Georgian house in Great Missenden should be rooted in that material language, even where the design itself is contemporary. We look for the opportunities that existing layouts miss: the kitchen that turns its back on the garden, the ground floor that could flow as one connected space, the relationship between inside and outside that a well-placed opening transforms entirely.
Sustainable Design is not a separate service — it is the thread running through every conversation we have about homes in Prestwood and Great Missenden. The parish sits entirely within the Chilterns National Landscape, which means that any development — whether a rear extension, a retrofit, or a new dwelling — must demonstrate that it conserves and enhances the natural beauty of the area. In that context, sustainability is not an optional extra — it is the starting point for any responsible design. We approach every project by understanding the existing building's thermal performance, its orientation, the way light and air move through it, and then designing interventions that are not only kinder to the planet but also more comfortable to inhabit, more economical to run, and more joyful to live in.
PassivHaus Design sets our standard for new construction, creating homes where the precision of the building envelope makes conventional heating systems virtually irrelevant. The Deerings in Hertfordshire — stable, quiet, warm even in the depths of winter — demonstrates what this standard achieves in practice. For new homes within or near the Chilterns National Landscape, the PassivHaus approach strengthens the case for planning approval by demonstrating environmental responsibility alongside design quality.
New Build Design and Paragraph 84 of the National Planning Policy Framework offer distinct routes to exceptional homes in the countryside surrounding Prestwood and Great Missenden. Paragraph 84 permits new dwellings in the open countryside only where the design is of truly outstanding quality and genuinely enhances its setting — buildings that respond to the contours of the Chiltern hills, the beechwood canopy, the chalk valleys, and the particular quality of light that defines this landscape. The AONB designation raises the bar further, but for the right project, it becomes an invitation to design something that belongs to this specific place rather than merely occupying it.
Whether you are uncovering the hidden layers of a High Street house in Great Missenden, improving the comfort of a home in Prestwood, or considering something entirely new in the surrounding Chilterns countryside, we would welcome the chance to talk about your building and what it could become.