Demolition of the 1970s pleasuredome would destroy the last of an entire typology, says Will Wiles

Barn unfurls to reveal sculptor’s archive

Interior ‘trees’ join those in the orchard alongside

Purcell for Cornwall Council

Patel Taylor for St George’s Bristol

McLean Quinlan for private client

Stonewood Design with Mark Thomas Architects plus Henry Fagan Engineering (Treetop Walk Way) for Emily Estate UK

Alison Brooks Architects for private client

TYPE Studio for private client