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single-family home building sites. The actual lot area will consist of approximately 66 acres (Refer to Table 42, pg 344). The proposed lots will vary in size from 30,290 square feet to 90,834 square feet, and would be arranged along Street "A", the extension of Hearst Drive, on four cul-de-sac courts, and four shared access driveways. There would be an emergency vehicle access connection at the north property line connecting to the public access/public service easement on the adjacent Grey Eagle Estates subdivision property. • The applicant will dedicate the remaining 496 acres of land to the City of Pleasanton or to other public entity as permanent open space in perpetuity. The open space area will provide wildlife habitat preservation areas; a system of regional and local public trails including a trail staging area; tree reforestation of the slopes facing the existing developments to the north; fire break areas; and detention/settlement basins serving the proposed development. A trail staging area will be located near the planned water tank at the juncture of the regional and local trails. It will be owned and operated by the City and will include various parking, restrooms, a horse trough, and a drinking fountain. The trails would generally follow the alignments shown in the City's Community Trails Master Plan, and would be generally accessible to pedestrians, bicyclists, and equestrians. The trail system as recommended by the Parks and Recreation Commission included both regional and local trails. • Approximately 400 trees would be planted in selected portions of the open space area to mitigate the loss of trees due to development. Approximately 58 trees, 29 of which are heritage sized trees, will need to be removed out of the 12,000 existing trees on the subject site. These trees would be limited to native species - oaks, bays, etc. -and would be maintained by the Homeowners Association or by the Geologic Hazard Abatement District. • A new water tank serving the proposed development and surrounding neighborhoods would be constructed on the open space area in the southeast quadrant of the site. Proposed Building, Site, and Landscape Design Guidelines The lot-specific house, site, and landscape designs will be controlled by design guidelines, attached as part of Exhibit A. The design guidelines are tailored for this development - 51 lots in a hillside setting backed by ridges, swales, and adjoining open space land. They provide detailed and comprehensive landscape and building design standards -diagrams, photographs, and drawings -addressing materials, massing, architecture, planting, etc., for clear guidance to future owners regarding their custom home and landscape design preparation, review procedures, and maintenance procedures. The guidelines also include examples of the house designs for the different types of lots of this development. The guidelines also provide the procedures for lot development. The review of the home designs for these lots would be administered by a two-step process. PUD-33 Page 9 of 59 June 13, 2007