The Twentieth Century Society is a British charity that campaigns for the preservation of architectural heritage from 1914 onwards. They provide support and advice to architects and planning authorities to protect the best twentieth-century architecture and design, whether through listing or sympathetic development and management. They have recently committed to extending their remit to cover 21st-century buildings, with growing concerns for climate change meaning that many of these buildings will need to be adapted to improve their environmental performance.

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• Introduction by Catherine Croft2000–200421st-Century Buildings: The Story So Far by Hugh Pearman2005–2009Maggie’s Centres: A Collective Endeavour by Andrea Placidi2010–2014The Serpentine Pavilions: Q&A with Hans Olbrist Ulrich2015–2019The Rise and Rise of ‘Sustainable’ Architecture by Barnabas Calder2020–2025Further ReadingAcknowledgements

The Twentieth Century Society is a British charity that campaigns for the preservation of architectural heritage from 1914 onwards. They provide support and advice to architects and planning authorities to protect the best twentieth-century architecture and design, whether through listing or sympathetic development and management. They have recently committed to extending their remit to cover 21st-century buildings, with growing concerns for climate change meaning that many of these buildings will need to be adapted to improve their environmental performance.

Select Guide Rating

• Introduction by Catherine Croft2000–200421st-Century Buildings: The Story So Far by Hugh Pearman2005–2009Maggie’s Centres: A Collective Endeavour by Andrea Placidi2010–2014The Serpentine Pavilions: Q&A with Hans Olbrist Ulrich2015–2019The Rise and Rise of ‘Sustainable’ Architecture by Barnabas Calder2020–2025Further ReadingAcknowledgements