As used in this chapter, "house of worship" shall mean: A building or structure, or group of buildings or structures, which by design and construction are intended for the conducting of organized religious services, and accessory uses customarily associated therewith including, but not limited to, the following: educational services, facilities for weddings, funerals, religious ceremonies, parish houses, rectories, convents, and other similar functions directly related with the principal function of the house of worship, places of assembly for self-help and support groups, indoor or outdoor activities particularly related to said use and other similar accessory functions relating to ministry, provided that such uses are not residential in nature.