The Turner prize-winning collective have brought the spirit of Lina Bo Bardi to Nottingham, thrilling kids with the shamefully neglected Brazilian architect’s visions of play

They’re principled, they’re powerful and they make the art world jumpy. As the Turner prize is split four ways, we look at how collectives are shaking things up

A flying roof, a bamboo airport, a marooned galleon and a park in the sky … continuing our series, we pick the 25 greatest builds of the new age

Why is there a full-size tree inside this once-abandoned Liverpool terrace? Step inside Granby Winter Garden, the latest transformation from Turner prize winning architects Assemble

A building made of boulders, Battersea’s blazing miracle, the rugged return of Mackintosh – and recognition at last for a Vegas visionary

The desire to share on Instagram is inspiring exciting new buildings around the world, but are these spectacular selfie sets what cities really need?

Two Victorian civic buildings have been given new leases of life as art galleries – largely by leaving things be

Grand Designs it isn’t, but the singular vision of architect Walter Segal lives on in Lewisham – and the families who built their own homes are inspiring a future generation in search of affordable housing in Britain

The young members of the London collective have created a striking range of projects that resolutely value people not profits

Architects are fighting back. After their cause was hampered by the atrocities of the 60s and 70s, followed by the dire ‘traditional’ building of the Thatcher era, imaginative and sustainable housing is in the ascendant