Shall mean a self-contained residential dwelling unit with a kitchen, sanitary facilities, sleeping quarters and a private entrance which is created to be occupied by a "low" or "moderate" income household in accordance with the applicable provisions of the "Substantive Rules" of the New Jersey Council On Affordable Housing (COAH) at N.J.A.C. 5:93-1, et seq. The "Affordable Accessory Apartment" may be created within an existing dwelling unit, may be created within an existing structure on the lot or be an addition to an existing home or accessory building.