An area of not less than 20,000 square feet shall be provided and maintained for each one-family dwelling and uses accessory thereto; and an area of not less than two acres shall be provided and maintained for each main church building. (Ord. 2000-21, 2000; Ord. 2000-01, 2000; Ord. 98-03, 1998; Ord. 199 §02.0960.03, 1973)