Balfron Tower in Poplar is an unmistakable structure which does not so much etch its presence on the canvas of the East London skyline as punch a hole right through it. It disrupts and at the same time exercises a strange pull. It was designed by the Hungarian architect Erno Goldfinger - and its brutalist aesthetic perhaps belies the social democratic idealism of its creator. Defying the popular image of the faceless, mercenary architect he actually lived in a flat on the estate for two months after it was inaugurated and solicited the views of residents on what it was like to live there. He then incorporated their suggested improvements into his design for the landmark Trellick Tower.