Teesside Park growth was originally the Teesside Development Corporation in the late 1980s when the two current unitary authorities were part of the county of Cleveland. The park's location is often incorrectly listed as Stockton-on-Tees (for the leisure park), Teesside, Cleveland or Middlesbrough (for the retail park). It is built on the former site of Stockton Racecourse, hence many of the park's roads being named after famous racecourses such as Aintree and Goodwood. It is home to a number of retail chains and has a Morrisons supermarket. Its catchment area covers much of the Tees Valley and much of the north of
County Borough of Teesside of the proposed county of Cleveland were considerably altered, with a number of marginal areas removed. Under the revised scheme, the Teesside district would have 70 percent of the county's population, and it was felt that it would dominate the county. Accordingly, new guidelines were issued to the Local Boundaries Commission in March 1972 that was charged with drawing up district boundaries: Cleveland ""should be divided into not less than four new districts with populations comparable as is reasonably practicable having regard in particular to the pattern of local government before the establishment of the Teesside county borough"". The county