The first phase includes the western portion of the park with recreational, botanical, and zoological gardens, as well as a wild bird park, science and technology park, Presidential Palace Gardens, and cultural park.

In addition to an onsite design workshop and site reconnaissance, EDSA developed a conceptual site plan illustrating development options related to land use, vehicular, service and pedestrian circulation, recreational and other amenities, preservation of significant site features, overall landscape massing and open space systems.