Ida & Billy

Ida Sze and Billy Chan met while working at Herzog & de Meuron before co-founding Ida & Billy in 2013. Striving for simplicity, and paying attention to requirements and character of space, the team has achieved a genuine identity for each project at any scale, from small-scale residential, such as the Bridged House in Hong Kong, and community centres to towers and urban renewal projects. idabilly.com
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Ellie Stathaki is the Architecture & Environment Director at Wallpaper*. She trained as an architect at the Aristotle University of Thessaloniki in Greece and studied architectural history at the Bartlett in London. Now an established journalist, she has been a member of the Wallpaper* team since 2006, visiting buildings across the globe and interviewing leading architects such as Tadao Ando and Rem Koolhaas. Ellie has also taken part in judging panels, moderated events, curated shows and contributed in books, such as The Contemporary House (Thames & Hudson, 2018), Glenn Sestig Architecture Diary (2020) and House London (2022).
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The Wallpaper* Design Issue comes with our Salone del Mobile must-sees
The May 2025 issue of Wallpaper* is on sale now, taking in Milan Design Week, the Venice Biennale, and a very stylish tea party
By Bill Prince Published
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Aboard Gio Ponti's colourful Arlecchino train in Milan, a conversation about design with Formafantasma
The design duo boards Gio Ponti’s train bound for the latest Prada Frames symposium at Milan Design Week
By Laura May Todd Published
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The ultimate high-performance earbuds, courtesy of McLaren and Bowers & Wilkins
The new Bowers & Wilkins Pi8 McLaren Edition continues a decade’s worth of cross-pollination between these two tech-focused British manufacturers
By Jonathan Bell Published
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Bold, geometric minimalism rules at Toteme’s new store by Herzog & de Meuron in China
Toteme launches a bold, monochromatic new store in Beijing – the brand’s first in China – created by Swiss architecture masters Herzog & de Meuron
By Ellie Stathaki Published
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The upcoming Zaha Hadid Architects projects set to transform the horizon
A peek at Zaha Hadid Architects’ future projects, which will comprise some of the most innovative and intriguing structures in the world
By Anna Solomon Published
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Liu Jiakun wins 2025 Pritzker Architecture Prize: explore the Chinese architect's work
Liu Jiakun, 2025 Pritzker Architecture Prize Laureate, is celebrated for his 'deep coherence', quality and transcendent architecture
By Ellie Stathaki Published
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Zaha Hadid Architects reveals plans for a futuristic project in Shaoxing, China
The cultural and arts centre looks breathtakingly modern, but takes cues from the ancient history of Shaoxing
By Anna Solomon Published
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The Hengqin Culture and Art Complex is China’s newest cultural megastructure
Atelier Apeiron’s Hengqin Culture and Art Complex strides across its waterside site on vast arches, bringing a host of facilities and public spaces to one of China’s most rapidly urbanising areas
By Jonathan Bell Published
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The World Monuments Fund has announced its 2025 Watch – here are some of the endangered sites on the list
Every two years, the World Monuments Fund creates a list of 25 monuments of global significance deemed most in need of restoration. From a modernist icon in Angola to the cultural wreckage of Gaza, these are the heritage sites highlighted
By Anna Solomon Published
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Tour Xi'an's remarkable new 'human-centred' shopping district with designer Thomas Heatherwick
Xi'an district by Heatherwick Studio, a 115,000 sq m retail development in the Chinese city, opens this winter. Thomas Heatherwick talks us through its making and ambition
By David Plaisant Published
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Hong Kong brutalism explored: tour the island with this new architectural map
Hong Kong brutalism is brought into sharp focus through the launch of Brutalist Hong Kong Map, the latest of its kind in publisher Blue Crow Media’s 20th-century architecture series
By Yoko Choy Published