After the closure of the docks, the area remained derelict for over a decade, with much of the warehousing demolished and over 90% of the docks filled in. The only surviving areas of open water were Greenland Dock, South Dock, part of Canada Dock (renamed Canada Water), remnants of Norway Dock, and a basin renamed Surrey Water. In 1981, the Conservative government of Prime Minister Margaret Thatcher established the London Docklands Development Corporation to redevelop the former dockyard areas of east London, including the Surrey Docks.