The incorporation of any properties into the R-1-5 classification shall be restricted to those areas deemed most appropriate in accordance with the basic principles set forth herein. Particular attention will be given to the character of the topography involved so as to ensure the capability of accommodating lots of this size in a manner that would provide appropriate usable level space for each lot. The filing and approval of a final subdivision map will be required prior to any such R-1-5 zoning becoming effective, and in addition, a precise plan may be required as provided in CVMC 19.12.120. Said map should ensure that the density of the subdivision will be properly related to that existing or proposed in surrounding areas, and that the development will not be incompatible with sound neighborhood density standards, and further, that public facilities will not be overburdened. Open space should be provided or available in the form of natural canyons, green belts, park areas or such other forms which would contribute to better land use and design and accommodate the recreational needs of families who would be living in areas designated for 5,000 square foot minimum lot sizes. (Ord. 3153 § 2 (Exh. A), 2010; Ord. 1212 § 1, 1969; prior code § 33.503 (H)(2)).