Take a look back through these pictures which show when it all started and the city centre landscape changed forever.
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5. Piling up
Rubbish from the demolition of the Old Castle Market started to build up | JPIMedia Photo: JPI Media

6. redevelopment plans
The whole Castle markets area has been the subject of redevelopment proposals since the 1980s, with part of the adjacent area being redeveloped with a hotel, multi-storey car park and several new office blocks in a development known as "The Square" by Carillion. | JPIMedia Photo: JPI Media
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