Third Nature exhibits Habitat 25 at DAC

A living prototype for a regenerative city

Installed as a 30 m² urban mushroom farm at DAC in the heart of Copenhagen, Habitat 25 demonstrates how food production can be integrated into the city’s cultural and infrastructural fabric. By cultivating the rare maitake mushroom on upcycled by-products such as coffee grounds and sawdust, the project reduces land use by more than a hundredfold compared to conventional agriculture.

Habitat 25 represents a new typology where architecture becomes an active metabolic agent, absorbing waste streams, producing food, and creating new ecological relationships. The installation at DAC invites visitors to experience architecture that grows, transforms, and participates in the cycles of nature.

The exhibition has been warmly received by the public, with Berlingske’s architecture critic Holger Dahl, among others, highlighting Habitat 25 for its pragmatic yet visionary approach to regenerative design.

Architecture for a Resilient Future

The exhibition Age of Nature explores the relationship between architecture, nature, people, and biodiversity – and asking the question: How can architecture help us create a future where there is room for the well-being of both nature and ourselves? For Third Nature, the exhibition represents an opportunity to explore how circular production and regenerative design can help shape resilient, adaptive cities.

Habitat 25 is developed by Third Nature in collaboration with Lasse Antoni Carlsen. The exhibition runs until May 17, 2026.

Learn more in the film featuring Founding Partner Flemming Rafn below.

Credit: Benjamin Hesselholdt and Eva Ørum for Danish Architecture Centre.

Read more about Habitat 25 here
Read the full review in Berlingske here
Read more about the exhibition here