A licensed halfway house and group home shall ensure that its sites comply with Health-General Article, §§8-406 and 10-518, Annotated Code of Maryland, as follows: A small halfway house or private group home is considered conclusively a single-family dwelling for purposes of zoning, and may be located in all residential zones; A large halfway house or private group home is considered conclusively a multi-family dwelling for purposes of zoning and may be located in zones of similar density; and A halfway house or a private group home may not be made subject to any special exception, conditional use permit, or procedure that differs from that required for a single-family dwelling or a multi-family dwelling of similar density in the same zone.