In an effort to get this thread back on track...
The last known height for this project which was 39-stories and 410', was obtained from an email that Kevin got from someone at Gensler in July, 2012.
Here's Kevin's post with the info:
http://forum.skyscraperpage.com/show...&postcount=251
From the post:
GreenWater | Block 185 Residential
410 feet to the rooftop box
380 feet to the main roof
110 feet to the podium
39 floors
436,975 gross square feet
336,600 usable square feet