October 18, 2008 - It seems as though the current economic turmoil and housing market slump aren’t the only difficulties that Shelbourne Development’s Chicago Spire is facing. Project spokespersons had already acknowledged that work would be suspended until the market improved, although utility work would continue, and the sale of the penthouse suite last month seemed to be a boost. But now architect Santiago Calatrava and architectural company Perkins and Will have filed liens against the developer for unpaid fees, according to Crain’s.

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