
Butterfly House + Aquarium
Extension and internal conversion of an existing building.
ZSL Whipsnade Zoo


The Butterfly House and Aquarium stands as an extension to an existing structure in the heart of ZSL Whipsnade Zoo. Covering an area of 330 square meters, this south-facing extension introduces a distinctive walk-through tropical garden, bathed in diffused natural light, and featuring a breathtaking showcase of butterflies, fish, and crocodiles.
The design of the extension comprises a series of gracefully curved glulam timber ribs, enveloped in PTFE/twin-skin polycarbonate. This innovative combination permits the infiltration of UV light into the internal spaces. The structure takes inspiration from the curve of a butterfly wing in section and the plan of a chrysalis.
Guiding visitors along an internal path, the building offers an immersive experience with a diverse array of species, including 30 different butterfly species and two African dwarf crocodiles housed in a specially designed crocodile pool. Throughout the space, strategically placed breakout areas encourage visitor engagement, complemented by Perspex viewing domes offering captivating glimpses into the crocodile exhibit.





