Looks like 1.2 mil-sq foot office tower in the “early stage of design".
As per TRD as of September 13, 2018.
= = = = = =
Phase two of Rockrose’s master plan will consist of a 1.2 million-square-foot office tower that’s still in the “early stage of design,” Elghanayan said.
Rockrose began assembling the site in the early 2000s. In 2007, it paid $83.4 million for 476 11th Avenue. It purchased the third and final piece — 528-534 West 29th Street — from Mercedes for an undisclosed sum in 2012. The developer combined as-of-right component with a district improvement bonus to allow for the 1.6 million-square-foot master plan.
Rockrose was one of the earliest developers to bet on the Hudson Yards area. It developed a 394-unit property at 455 West 37th and an 835-unit property at 505 West 37th Street prior to 2009, when Elghanayan’s uncles K. Thomas and Frederick founded TF Cornerstone. (Justin Elghanayan’s father, H. Henry Elghanayan, is CEO of Rockrose.)