San José promotes and encourages sustainable development primarily through its General Plan – the City’s official policy regarding its future character and quality of physical development. In order to create a sustainable city, San José considers such issues as economic development, growth management, downtown revitalization, neighborhood preservation, greenline/urban growth boundary, and housing. The City encourages higher density projects located near light rail and other transit facilities in order to preserve hillsides and other natural resources. Developers have responded by building more than 16,000 housing units in close proximity to transit. One of the best examples of this sustainable development practice is the Ohlone-Chynoweth Commons, located at the Ohlone-Chynoweth Light Rail Station. Opened in May 2001, Ohlone-Chynoweth Commons is a mixed use, transit-oriented development project consisting of 330 units of affordable housing, 4,400 square feet of retail space, a resident community center, a computer learning center, and a day care center.