Development plan. The application for conditional use approval shall be accompanied by a unified, overall site plan covering the entire tract, regardless of any intended phasing of development. The plan shall be prepared with sufficient detail to adequately illustrate the proposed development uses and nondevelopment uses of the tract, including (where appropriate) reserve areas for possible future expansion; coordinated internal and external vehicular and pedestrian circulation; well-related, convenient and efficient parking and loading areas; agreeable surroundings that provide comfort, safety and convenience for prospective residents, customers, and/or workers; and high quality design in terms of building relationship, facade treatment, signage, lighting, landscaped and planted buffers and screens, as well as other natural and constructed amenities in furtherance of the Comprehensive Planning objectives of the Borough of Elverson.