No motor vehicle repair garages, motor vehicle service stations, motor vehicle body repair shops, parking garages or parking areas for five or more vehicles shall be located within 200 feet along the same side of a street as any school, public playground, church, hospital, public building or institution, except where and when the property is in another block or on another street which the lot in question does not abut. No auto service station shall be permitted where any oil drainage pit or visible appliance for any purpose other than filling pumps is located within 12 feet of any street line or within 25 feet of any residential district, unless such appliances or pit are within a building. No property or premises shall be used for the storage of more than one untitled or unlicensed motor vehicle or vehicles incapable of normal operation. Any and all other salvaged parts, scrap metal or other materials shall be stored within a building.