Definition and Philosophy

Open space is defined as land or water area that either remains in its natural state or is used for agriculture or otherwise essentially undeveloped. Open space provides protection for areas of particular scenic beauty and enhances the survival prospects for endangered plant and animal species. It enhances public safety through the minimization of flood erosion, landslide, earthquake, and fire hazards. It provides room for production of food. It can help shape urban growth and thus provide a more liveable and efficient urban environment. In short, open space means "room to breathe."

Governing Policies

In 1999, the Board of Directors developed a Basic Policy to guide the agency and provide information to the public about the mission, purpose, strategic direction, and major elements of District’s operations.

Good Neighbor Policy

The District’s Board of Directors and staff are strongly committed to establishing and maintaining good relationships with all of our residents and neighbors. The Board adopted the District's revised Good Neighbor Policy on September 26, 2007. On June 10, 2009, the Board approved the Good Neighbor Brochure, “A Guide for Our Open Space Neighbors.” For further information, please call 650-691-1200.