Reform UK says it was a "waste of money" but opponents say it was needed
Residents say they are unsure what is happening and that they are becoming frustrated.
City council says an urban explorer risked "inherent dangers" in the condemned Anglia Square site.
People say it is an important space for the community, but Lidl wants to open a store there.
The redevelopment is among a number of vacant shops facing a transformation in the city.
It is loved by some and loathed by others.
Councillors back plans for the Wetherspoons in Wensum Street to stay open until 02:30.
The £625,000 project comes ahead of plans for a wider revamp of the building.
Officials say landlords are failing to keep properties maintained.