A pleasingly unconventional house in south west London where old meets new

Working with his architect brothers, Joseph Joseph co-founder Antony has transformed a Gothic Revival house in south west London into a space for modern life that marries style and function
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Part of the the 2026 House & Garden x Savills Project of the Year shortlist, this Gothic Revival house overlooking Wandsworth Common conceals an unexpectedly modern interior
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Double-height glazing by MHB blurs the boundaries between the new extension and the garden, designed by Urquhart & Hunt.

Michael Sinclair

Where others might have suggested something more conventional, P Joseph’s design reflects their ability to devise modernisations that manage to be harmonious through being gently assertive. The double-height kitchen extension, with its orthogonal geometry and exposed concrete slabs, stands proudly modern in form. But Philip, who leads the design side of the practice, took his cue from the house’s façade and used a pale London stock brick throughout the new space to create continuity. ‘Crucially,’ he says, ‘we didn’t clean the original façade, so the bricks retained a patina that relates to the slightly desaturated ones we used in the extension.’

The transition between old and new is further eased by the clever spatial arrangement. ‘I don’t like rear extensions that take over and render the original part redundant,’ says Philip. He set about arranging the rooms so the family would want to use all of them. The solution came in the form of windows in the ground-floor sitting room that open onto the new addition and the continued use of brick in the lower-ground-floor TV room, which is slightly lower than the kitchen. The house was also extended to the side, creating space for what Philip calls a ‘rather grand staircase’ that descends from the sitting room to the kitchen. The resulting rooms overlap, with each retaining its integrity.

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Michael Sinclair
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MICHAEL SINCLAIR

One part of the house where modernity could run free was the basement, which contains a gym, a bedroom and a spa. ‘In the same way that we didn’t want to create a typical extension above, we didn’t want the basement to be just about maximising square footage,’ explains Philip. Even here, the airiness of upstairs continues, thanks to generous ceiling heights and a light well that runs the length of the space, connecting it to the garden via an external staircase.

As well as the architecture, P Joseph was responsible for the interiors, which introduce a subtle modernity to the historic fabric. ‘Amelia and I were into quite a classic look, but Phil suggested stripping back,’ says Antony. Out went the cornices and skirtings in the original part of the house, leaving a pared-down backdrop that is counterbalanced by the more decorative sash windows and original chimneypieces. It provides an elegant setting for their furniture, which leans towards 20th-century classics by the likes of Charles Pfister, Hans Wegner and Isamu Noguchi.

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This has a view of the lower-ground-floor TV room and the sitting room above, where Artilleriet’s ‘Etcetera’ lounge chair in sand beige cotton velour can be seen.

Michael Sinclair

In the new parts of the house, Philip observes, the bespoke joinery and furniture are meant to be ‘an extension of the architecture’. Working with furniture maker Jeremy Pitts, he designed pieces such as a freestanding pantry unit and a kitchen table inspired by the chunkiness and simplicity of Luis Barragán’s furniture. These ‘anchor pieces’, as Philip describes them, work effortlessly in the background to stage the couple’s art collection, which was sourced with the help of Lizzie Dixey of The Art Register.

‘We have an idea at work that we call “the delight factor”. It’s the marriage of functionality and aesthetics,’ explains Antony. Looking around at his home, which now so deftly synthesises old and new, utility and beauty, elegance and robustness, you get the sense this is a design philosophy that runs in the family.

P Joseph: p-joseph.com

Click here to discover the winners of the 2026 House & Garden Awards.