The "R-1" Single-Family Dwelling District is established for the purpose of low density, single-family dwelling use and to allow certain public facilities. It is intended that no uses be permitted in this district that will tend to devalue property for residential purposes or interfere with the health, safety, order, or general welfare of persons residing in the district. Regulations are intended to control density of population and to provide adequate open space around buildings and structures in the district to accomplish these purposes.