In June 1961, Northumberland County Council's Planning Committee approved the draft plans to establish what it hoped would be "Britain's first enterprise town." Sponsored by the council, the development was to be carried by a consortium led by William Leech, which had acquired the land. It was predicted to take 20 years, cost £50m and eventually house 40,000 inhabitants across a four square mile site that also included an industrial zone. A one-way road system was proposed, with the waggon ways of the former pits being repurposed as pedestrians paths.