The most recent renovation to the Thompson Library was a $108.7 million project that began on January 10, 2007 and was completed in the summer of 2009. It was designed by the Gund Partnership with Acock Associates Architects as the architect of record. The library's original east facade and Grand Reading Room were restored, while the 1977 west wing addition and 1951 north and south extensions were demolished. A new west wing was built, bringing the library floor space to . Nearly 1000 seats were added to the library, but shelf space was decreased, so many volumes were moved to other locations. The renovation focused on opening up the library space to natural light and creating a more coherent space. Features added in the renovation include a new West Atrium and Buckeye Reading Room, glass walls for the lower floors of the 1951 book tower, exhibition space for the library's special collections, a café, and a ground-floor east-west passageway that extends the Oval's "Long Walk" through the building. The renovation was opened to the public on September 24, 2009.