Fan Pier is a nine-acre, 21-city block site which consisted largely of underutilized parking lots when the Fallon Company purchased it for $115 million in 2005. The neighborhood consists of four commercial towers-–One Marina Park Drive, 11 Fan Pier Boulevard, 50 Northern Avenue, and 100 Northern Avenue. It also has two condominiums Twenty-Two Liberty and Fifty Liberty. The $4 billion Fan Pier project encompasses three million square feet of commercial and residential real estate, public, civic and cultural space, including two parks and a 6-acre marina, and has been a catalyst for the revitalization of South Boston’s waterfront.