Cassion Castle is turning the architectural hinterland of London's East End to his own advantage, seeking out unpromising plots and upgrading them into light-filled living spaces.
Together with former partner Carl Turner, he built the Twofold House, a home and studio for a pair of artists, and today he is hard at work on the Brick Studio, an artfully composed tower of brick designed for an industrial designer client in an off-the-radar London mews.
Castle also acts as contractor on many of his projects, a hands-on process that, he admits, tends to 'throw a lot of emphasis on our relationship with the client.' However, it also allows for far better quality. 'It gives me much better control over things, it's a more craftsman-like and experimental approach.'
Materials and finishes are always a focus: a refurbished Victorian mansion for a contemporary comic actor mixed spatial invention with elaborate touches, while a new low-energy country house in Suffolk is in the design stage.
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Meet Malak Mattar, the Palestinian artist behind the 'Together for Palestine' concert at London's Wembley ArenaThe London-based artist curates a landmark concert of music and art in support of Gaza, alongside Brian Eno, James Blake, Jamie xx, Neneh Cherry and more
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A new coffee table book proves that one designer’s trash is another’s treasureThe Rizzoli tome, launching today (16 September 2025), delves into the philosophy and process of Retrouvius, a design studio reclaiming salvaged materials in weird and wonderful ways
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A carbon-emission-busting house, yeast-biomass building, and more ‘Designs for a Cooler Planet’‘Designs for a Cooler Planet’ returns to Aalto University in Finland as part of the annual Helsinki design and architecture week, highlighting buildings, materials and solutions towards a better future
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In memoriam: Sir Nicholas Grimshaw, 1939-2025Pioneering British architect Sir Nicholas Grimshaw has died at the age of 85; we honour the creative who marked 20th-century architecture like few others
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The new 2025 London Open House Festival tours to book2025 London Open House launches this weekend, running 13-21 September; here, we celebrate the newcomers in the residential realm, flagging the exciting additions to the festival's growing home tour programme
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The wait is over – the RIBA Stirling Prize 2025 shortlist is hereThe restored home of Big Ben, creative housing for different needs, and a centre for medical innovation – the RIBA Stirling Prize 2025 shortlist has just been announced, and its six entries are as diverse as they can be
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Slides, clouds and a box of presents: it’s the Dulwich Picture Gallery’s quirky new pavilionAt the Dulwich Picture Gallery in south London, ArtPlay Pavilion by Carmody Groarke and a rich Sculpture Garden open, fusing culture and fun for young audiences
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Bay House brings restrained modern forms and low-energy design to the Devon coastA house with heart, McLean Quinlan’s Bay House is a sizeable seaside property that works with the landscape to mitigate impact and maximise views of the sea
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A whopping 92% of this slick London office fit-out came from reused materialsCould PLP Architecture's new workspace provide a new model for circularity?
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Meet the landscape studio reviving the eco-brutalist Barbican ConservatoryLondon-based Harris Bugg Studio is working on refreshing the Barbican Conservatory as part of the brutalist icon's ongoing renewal; we meet the landscape designers to find out more
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A refreshed Victorian home in London is soft, elegant and primed for hostingSobremesa house by architects Studio McW shows off its renovation and extension, designed for entertaining
