No gasoline selling or service station or area so utilized shall be located within 500 feet of any property upon which a church, hospital, public or parochial school, private school, college, institution or theater shall be located nor shall said gasoline selling or service station be located within 2,000 feet of another gasoline selling or service station. Said distance shall be measured from the property or lot line on which the proposed service station is to be located on a straight line to the property line or lot line on which the church, hospital, public or parochial school, private school, college, institution, theater or gasoline or service station is located.