 This first phase is due for completion in 2019.Investigations into the rapid decline of Sheffield city centre from the mid-1980s led the Sheffield Development Corporation and Sheffield City Council to jointly commission Hillier Parker and the Oxford Institute of Retail Management to undertake a study of the region in 1994, and to recommend a strategy for regeneration of the city centre.The study noted the decline in status of the city centre and recommended a long-term strategy for the unification of The Moor and Fargate through a major retail development.