Katerina Dionysopoulou and Billy Mavropoulos on working with specialists in concrete, metalwork, bricks and glass

Uxbridge Bower by Bureau de Change enables intergenerational living

This unusually shaped rear extension to a north London semi accommodates a sunken living room

The Retreat longlisted entries

Supportive, compassionate and open-minded head of architecture at Kingston University

Rob Annable and Justin Pickard's design focuses on SterlingOSB Zero’s very end-of-life material properties

Tom Birch and Elliot Nash’s design uses SterlingOSB Zero as shuttering for concrete and then to intervene on the resulting tower

Ella Walklate, Reini Celmins, Alexander Vile and Adam Spreckley’s design is based on Glasgow's pigeon coops

The imagined future discovery of new modular structures inside an existing one has won this year's West Fraser SterlingOSB Zero/RIBAJ competition

This year's SterlingOSB Zero competition asked architects to design a country escape for up to 10 people