Calatrava stops work on Chicago's Spire, files lien

Crain's Chicago Business reports:

Renowned Spanish architect Santiago Calatrava has stopped working on the Chicago Spire, claiming the developer hasn’t paid $11.34 million he’s owed for his work on the planned 2,000-foot twisting tower.

The lien against Dublin, Ireland-based Shelbourne Development Ltd., along with another by architecture firm Perkins & Will Inc. for $4.85 million, is the latest sign that the planned 150-story tower is struggling to get out of the ground.

The struggles of expensive urban living.