someMidTowner
¯\_(ツ)_/¯
Judging from the renderings, I suspect the gap in glazing is a deliberate design element and will remain that way, but I fully expect that the visible concrete pillbox on the roof will be appropriately camouflaged in due course.
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Pretty sure "the pillbox" is a (lavishly-decorated) suite that Hines is giving to Wilkinson Eyre (a deserved thanx). Interestingly, the cost over-run of this was covertly funded/negotiated by a group of over-paid local photographers (including razz I think).
Just for the record, that is an elevator overrun (or machine room) that will be topped by a green roof. From the plans:It's probably an outhouse for the poor sap who gets stuck working on the roof. Flush twice, it's long way down to the basement...