Play Pavilion by Lego & Serpentine celebrates play

play pavilion, a colourful structure in the greenery of london

(Image credit: © Peter Cook (Peter Cook Studio Crablab). Courtesy Serpentine, picture by Andy Stagg)

published 11 June 2025

A colourful structure has appeared in Kensington Gardens; the Play Pavilion is a joint project by Lego Group and the Serpentine Pavilion, conceived and unveiled today to the public to celebrate World Play Day (11 June). The day marks the Lego Group’s take on the UN’s International Day of Play, 'which states that play is an essential right for every child’s growth and happiness'.

Explore the Play Pavilion in London

The structure, built in part using Lego bricks in bright orange and other primary hues, was designed by architect Sir Peter Cook of CRAB Lab and sits in the park next to Marina Tabassum's Serpentine Pavilion 2025, and will be open until 10 August.

Cook said: 'I’ve always believed architecture should surprise you, especially if you’re young. The Play Pavilion does just that, not in a grand way, but in the small detail and moments of discovery as you navigate the space. Inspired by young people, there is a space to hide, climb, perform or simply let your imagination run wild. It really is about unlocking infinite possibilities through play.'

portrait of peter cook inside the play pavilion — Peter Cook takes to the slide

The pavilion comes with its own, bespoke, free, summer programme of events, addressed to play enthusiasts of all ages. The scheme responds to the company's research, which shows that one in three children feel that existing spaces are not designed with their needs in mind when their creation is led by adults; meanwhile seven in ten (69 per cent) of parents express concern that their city 'does not offer safe and accessible play spaces'.

The Play Pavilion's inception aims to zoom in on these needs. 'If you don’t make play a priority, you lose more than joy – you also lose empathy,' said Lego's Kristofer Alan Crockett during the opening events. 'It’s a gift to the city and a pavilion for the community.'

The Play Pavilion is open until 10 August 2025, serpentinegalleries.org

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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).