:The building you are thinking about is the District Council office on Exchange Street, soon to be demolished if the plans to build the new theatre district go ahead.  Buildings that I would say were interested architecturally are: 
 :*The Blue Leaney 
 :*County Hall 
 :*St Mary's Church 
 :*The Prebendal House (you mentioned it but I'm not sure why) 
 :*The Hickman Almshouses in Parson's Fee 
 :*The former Friar's Square before they demolished it 
 :*The prefabs in Southcourt that were only supposed to last ten years but are still there 
 :*Parrott & Coales's offices in Bourbon Street 
 :*The old Court House? 
 :Any thoughts?  2000