Anish Kapoor reveals his latest epic creations

In his 3,100 sq metre south London studio, Anish Kapoor works with a team of 23 — 11 studio assistants, nine office staff and three stone masons — in a converted dairy factory divided into rooms for large red installations, small black sculptures, models and archives.

In an upstairs meeting room a hand-drawn weekly calendar sits above a list titled "Unfinished Hayward Works", and on the windowsill stands a solid cylinder of concrete removed from the Hayward Gallery floor, brought by outgoing director Ralph Rugoff as a birthday gift.

Around the complex are pieces bound for his Hayward retrospective: Ha Makom, made from 31 parts and carved with a signature rectangular void; Ancestor, a "kind of meteorite form" whose pock-marked surface is worked on by hazmat-suited assistants; and the inflatable All of Nothing, too large to be seen whole, alongside Ritual Expiation and familiar works such as Descent into Limbo and Mount Moriah.

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