The heart of the conservation strategy is a system of new preserves linked to existing protected lands to form a network of protected lands outside the area where new urban growth has been planned to occur. The conservation strategy is designed to create a Preserve System that will:
Preserve approximately 23,800 - 30,300 acres of land for the benefit of covered species, natural communities, biological diversity and ecosystem function
Preserve major habitat connections linking existing protected lands
Enable management of habitats to enhance populations of covered species and maintain ecosystem processes
As of the end of 2021, the Preserve System is comprised of 43properties, totaling over 12,600 acres of conserved land. All but one of the acquisitions were completed in partnership with the East Bay Regional Park District.