Teesside Park Teesside Park Teesside Park is a retail superstore and leisure development in Thornaby-on-Tees, built in 1988. Located just off the A66 near the A66/A19 interchange, it is split between the unity authorities of Stockton-on-Tees (retail park) and Middlesbrough (leisure park) with the line of the "Old River Tees", which runs down the middle of the development, forming the boundary between the two authorities. The development has an eye-catching central building that was constructed in 2008. The Stockton-on-Tees section is within the town of Thornaby-on-Tees and is all located within the ceremonial county of North Yorkshire. The driving force behind its
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