TVRU: a building offering complete living facilities for one (1) single-family under one (1) roof provided that a maximum of eight (8) bedrooms and a maximum overnight occupancy of two (2) persons per bedroom plus four (4) additional persons will be permitted on the property and that the living facilities are rented to guests for a 14-day period or less. All living facilities must be incorporated into the principal structure and no living quarters may be installed in accessory buildings.