^ I have a little inside beef on that one, beyond what was reported by Roeder - all hearsay, so take it as you will. The city's Landmarks Commission has washed its hands of the thing despite the glimmer of hope that they might actually flex some muscle and do what's right... but that's water under the bridge.
The development is hinging on (obviously) adequate sales, which they are close to having. However, the MWRD building next door owns the alley, as reported in Roeder's article. Apparently (and I don't understand how this slipped by the surveyors, architects, etc), but no one on the design team or from Prism seemed to know about this. The development has a valet-run car lift as its only access to the parking garage (much to the annoyance of the developer, I presume: damn landmarked facade in their way

), and without access from the alley, they will have to redesign the whole project - if that's even possible, since the landmarked facade must be retained, and they have mostly Michigan Ave frontage.
Well, from what I've overheard, MWRD is playing hardball with these guys. Some kind of demands for parking and other types of punishment for using "their" alley.
All in all, I think Prism is getting what it deserves for doing a crappy project and for screwing around with a City Landmark. We'll have to see how accurate the above is, and what comes of it.