Ownership of the Seagram Building was sold to real estate investor Aby Rosen for $375 million in late 2000. At the time, the building was 99.5 percent occupied but only six original tenants remained. The next year, the Seagram Company moved its headquarters out of the building. The Seagram Building continued to be held by Rosen's RFR Holdings, which was still restricted from advertising the building with the "Seagram" name. Meanwhile, French media conglomerate Vivendi, which had acquired the Seagram company in 2000, started selling off the building's art in 2003 to raise money. RFR received the LPC's permission in 2005 to transfer unused development rights at the Seagram Building site to the neighboring YWCA building on 53rd Street, allowing the construction of a hotel on 100 East 53rd Street. The Seagram Building was added to the National Register of Historic Places on February 24, 2006.