The predicted climate of London in the year 2050 will create conditions unfavourable for the survival of native British species of tree. The 'Westminster Arboretum' is an architectural response to global warming’s threat, seeking to protect eight selected species of tree from extinction, whilst being constructed and grown from the trees themselves using traditional horticultural methods. Located on the historic site of Thorney Island, the Forestry Commission funds the project to rewild the landscape of Westminster. Through the process of anamnesis, the island gains an architectural urban forest ecosystem of managed nature. The site is reclaimed as public land, which is managed and maintained by foresters, creating a space for the local community to experience and appreciate both the beauty and fragility of this protected landscape.

A political agenda is developed where the project creates a discussion around the need to consider how future cities should be designed, built and lived in. The project suggests that a hybrid between an architectural and reforested landscape is essential for generating conversations around reforestation as a wider strategy to combat anthropogenic climate change. Ultimately, it shows a way to create a more resilient and sustainable relationship with the environment.