2.2.20 Dwelling - Two-Family:
A detached building designed for or occupied by two (2) families only, with separate housekeeping and cooking facilities for each.
2.2.21 Dwelling - Multiple-Family:
A building designed for or occupied by three (3) or more families living independently of each other with separate housekeeping and cooking facilities for each.
Any private or dedicated public way other than a street or alley, providing a secondary means of access to a property having a width of not less than twenty (20) feet.
2.2.23 Essential Services:
The erection, construction, alteration, or maintenance by public utilities or municipal depart- ments, commissions or boards, of underground or overhead gas, electric, steam or water transmission or distributing systems; collection, communication, supply or disposal systems; dams, weirs, culverts, bridges, canals, locks, including poles, wires, mains, drains, sewers, towers, pipes, conduits, cables, fire alarm boxes, police call boxes, traffic signals or signs and fire hydrants; and other similar equipment and accessories in connection therewith, for the general public health, safety, convenience, or welfare, but not including buildings other than such buildings as are primarily enclosures or shelters of the above essential service equipment.
A single individual living upon the premises as a separate housekeeping unit, or a collective body of persons living together upon the premises as a separate housekeeping unit in a domestic relationship based upon birth, marriage or other domestic bond as distinguished from a group occupying a boarding house, lodging house, club, fraternity or hotel.
2.2.25 Group Day Care Home:
A private home in which one but not more than twelve (12) minor children are received for care and supervision for periods of less than 24 hours a day, unattended by a parent or legal guardian, except children related to an adult member of the family by blood, marriage, or adoption. It includes a home that gives care to an unrelated child for more than four (4) weeks during a calendar year.