Manhattanville campus
In the summer of 2003, President Bollinger announced the University's intention to build a extension/satellite campus. The Manhattanville campus is an 18 acre planned development in the Manhattanville neighborhood of Manhattan, an area bound by 125th and 133rd Streets between Broadway and 12th Avenue.
Columbia has retained world renowned architect Renzo Piano to lay the master plan for the expansion, a plan which President Bollinger has insisted must be implemented either in whole or not at all. Current plans call for the first phase of construction to include new sites for the Business School, the School of the Arts, the newly created Jerome L. Greene Science Center, and the Columbia Science, Math and Engineering Secondary School a public Magnet school under Columbia's direction for children of northern Manhattan residents.
Expansion controversy
See main article at Manhattanville Controversy.