Amin Taha on building with stone.

Amin Taha has been described as ‘London’s most controversial architect’. This is largely due to 15 Clerkenwell Close, a development that is defined by a single material, stone. The building (which houses his collective practice, Groupwork, and where he also happens to live) was shortlisted for this year’s Stirling Prize, the UK’s most prestigious architecture award, despite that fact it was finished in 2017. And it’s fair to say the nomination came as a surprise. This wasn’t simply to do with the timing, nor the building itself – which is a smart, witty, and, it transpires, sustainable piece of work that subtly references the area’s history. But rather because, three years ago, it was issued with a demolition order by Islington Council for non-conformity with the submitted plans . Happily, Taha won his appeal and has taken the thinking behind the building – which uses limestone as a structural frame, rather than as a facade for steel and concrete – to investigate how we might build carbon negative towers in the future.  As architecture writer, Tim Abrahams, has pointed out what sets Taha’s practice apart is his ‘fundamental rejection of style as an orientating device in favour of structure’. In other words, this is an architect for whom materials really matter.In this episode we talk about: the controversy around 15 Clerkenwell Close; being shortlisted for the Stirling Prize; learning to build in stone; why it’s a sustainable material; the nation’s planning system; beauty; being born behind the Iron Curtain; growing up in Southend-on-Sea; studying under Isi Metzstein and working for Zaha Hadid; designing 30-storey stone towers; and how the construction industry could become carbon negative. Support the show