Costain was named major contractor of the year at the 2005 Building Awards. The event, which attracted a record 1900 people to the Grosvenor House Hotel, saw a host of former Olympic medal winners including 4 × 100 m relay gold medallist Marlon Devonish, hand out the gongs. Other winners at the ceremony included Peter Rogers as personality of the year, Stanhope as client and best practice firm of the year, Barratt as major housebuilder of the year and BPTW as architectural practice of the year. The event was hosted by BBC sports presenter John Inverdale.