 Following this, he worked as construction manager and then vice-president of Olympia & York from 1978 to 1987 working on many large construction projects, including the construction of the World Financial Centre, 4m sq ft headquarters of Merrill Lynch, the Olympia Centre in Chicago, and the construction of Granicor, in Quebec.In 1988, Iacobescu moved to London as senior vice-president of Olympia & York, to oversee the construction budget and delivery of the Canary Wharf project.He stayed with the project when Olympia & York went into administration in 1991, working as Construction Director.