Silverstein Properties looks to buy Center City skyscraper December 24, 2018December 23, 2018 by myNOI This would be the first acquisition in Philadelphia for the New York real estate firm, which developed the new World Trade Center. Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to print (Opens in new window) Print Click to email a link to a friend (Opens in new window) Email