The Robin Hood Gardens Estate in Poplar (1972) is the only completed residential by the architects Alison and Peter Smithson. Famous for wide street decks, the so-called 'streets in the sky', these were symbolic of east end pavements as well as the architects social concerns. After less than fifty years and two attempts at listed property status, it is now being demolished in stages as part of the Blackwall Reach regeneration scheme. These photographs were made over several months while preparing for an exhibition at Robin Hood Gardens during London Open House 2016.