Where a park, playground, school or public access to water frontage which is shown in the comprehensive plan is located in whole or in part in the proposed subdivision, the commission shall request the dedication of such area within the subdivision. The subdivider shall pay for only that portion of the cost of the public site that benefits his subdivision as determined by the commission. The commission shall, whenever possible, establish the preservation of all natural features which add value to residential developments and to the community, such as large wooded areas, water courses, beaches, areas of historical significance, and similar irreplaceable assets. (Prior code § 28-53)