Richard Rogers Partnership designed Three World Trade Center, or 175 Greenwich Street, which stands across Greenwich Street from the Memorial's two reflecting pools. Groundbreaking occurred in fall 2008, and in May 2009, the Port Authority proposed reducing the tower to four stories. In 2012, with Silverstein still unable to find tenants, construction on the above-ground levels was delayed indefinitely, with plans for only 7 stories. However, work progressed on below-grade foundations and the ground-level podium, which was completed by October 2013. Anchor tenant Group M was finally signed in late 2013, but finance negotiations between Silverstein Properties and the Port Authority dragged, until an agreement was reached in June 2014. Construction resumed in August 2014, and the building opened on June 11, 2018.