Appleby Blue in London Wins Stirling Prize for Using Architecture to Combat Loneliness and Transform Residents’ Lives.
The Appleby Blue, a social housing complex located in Southwark, South London, was named the Best New Building in the UK in 2025 by the prestigious Stirling Prize, awarded by the Royal Institute of British Architects (RIBA).
The project, designed by Witherford Watson Mann, has an ambitious goal: to combat loneliness among the elderly through a welcoming and community-focused architecture.
The building houses 59 apartments for people over 65 years old and represents a modern alternative to traditional care homes.
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Without a blueprint, without an engineer, and using scrap from the dump, a father spends 15 years building an 18-room castle for his daughter, featuring tram tracks, 13 fireplaces, and over 700 m², which may now be demolished.
Its distinguishing feature is the design that encourages social interaction, with spacious common areas such as a rooftop garden, internal courtyard, and community kitchen that promote contact and a sense of community.
A Human Response to Loneliness and Housing Shortage
The project was conceived in the context of two simultaneous crises: the housing shortage in the UK and the rise of loneliness among the elderly population.
According to architect and juror Ingrid Schroder, director of the Architectural Association School of Architecture, the Appleby Blue offers “a hopeful and imaginative response, where residents and the community come together through the transformative nature of the project.”
The approach of Witherford Watson Mann proposes an affective architecture that values the dignity and well-being of the residents.
“The project sets an ambitious standard for social housing for the elderly,” the jury noted, praising the balance between functionality, aesthetics, and social purpose.
Welcoming Environments That Inspire Well-Being
The Appleby Blue apartments have been praised for their generous size and integration with green spaces.
The hallways, lined with terracotta flooring, are adorned with benches and plants, creating a sense of “oasis in the woods,” as described by the RIBA.
The automated irrigation system reinforces the natural atmosphere and provides visual and environmental comfort to residents.
This combination of warm design and sustainability results in an “aspirational lifestyle environment” that breaks with the institutional stigma of traditional care homes. The idea is for the resident to feel at home — and not just housed.
A Milestone in the History of Social Housing
The Appleby Blue was built on the site of an old abandoned care home, yet it keeps alive the tradition of social housing for the elderly, which has existed in England since the Middle Ages.
The project symbolizes a renewal of this historic concept, combining human care with modern and sustainable architecture.
The victory reinforces the recognition of the role of architecture as a social agent, capable of responding to contemporary challenges such as population aging and urban isolation.
Competitors and Legacy of the Prize
Among the competitors for the Stirling Prize 2025 were significant projects such as the restoration of the Big Ben tower, a new fashion school, and a science laboratory.
Nevertheless, it was Appleby Blue that stood out for combining innovation, social sensitivity, and visionary design.
The prize, awarded annually since 1996, recognizes the “most significant building of the year for the evolution of architecture and the built environment.”
This is the second victory for the Witherford Watson Mann office, which previously won the Stirling 12 years ago with the design of a holiday home within the historic Astley Castle in Warwickshire.
Among past winners are landmarks such as the Everyman Theatre in Liverpool, Hastings Pier, and the Scottish Parliament Building in Edinburgh.
In 2024, the Elizabeth Line, a railway line connecting East and West London, won the prize.
A Symbol of Hope for the Urban Future
More than just a building, the Appleby Blue represents a new philosophy in contemporary architecture: designing spaces that care for people.
By transforming a place of isolation into a community center, the project becomes a symbol of hope amidst the social and urban challenges of the 21st century.
With its welcoming aesthetic and human purpose, the building proves that architecture can be a powerful tool against loneliness, inspiring the world to rethink how we build — and how we live.

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