Kees Christiaanse (born 1953, Amsterdam) is an architect and urban planner from the Netherlands. After working with Rem Koolhaas, he started two firms, KCAP (Kees Christiaanse Architects & Planners, in Rotterdam) in 1989 and Architects and Planners (ASTOC, in Cologne) in 1990, where he was a partner till 2002. Christiaanse has "tackled some of the highest profile urban design schemes in the Netherlands, hosting buildings by" the finest Dutch and several international architects.
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