Places of worship. Churches, places of worship and religious instruction, and, in conjunction with the foregoing uses and on the same premises, parish houses and classrooms in the same or a separate building shall be permitted uses. In addition, in conjunction with a church or place of worship and religious instruction on a tract of 25 or more acres and on the same premises, boardinghouses and other congregate residential facilities and retreats for members of an established religious order and/or boardinghouses and other congregate residential facilities reserved for occupancy by low- and moderate-income elderly persons of all faiths shall also be permitted uses, provided that the same comply with all requirements of § 210-47.1 below.