No inn, hotel, business, guesthouse, apartment house, townhouse, multiple dwelling, office of a doctor or dentist, or business or industrial building shall be erected or externally enlarged unless there is provided, on the lot of land associated therewith, off-street automobile parking space on the basis of the following minimum requirements:
A.
Retail stores, shops for custom work, consumer service establishments, offices and banks: at least one off-street parking space for each 180 square feet of ground floor area and for each 3,000 square feet of usable area, other than ground floor area; and, in addition, a minimum of one parking space for every employee working in a building at any given time.
B.
Restaurant and other eating places, theaters: at least one off-street parking space for each three seats that are provided for patron use, plus one additional space for each three employees.
C.
All places offering overnight accommodations: at least 1 1/2 spaces for each guest room.
D.
Wholesale, storage, industrial and manufacturing uses, including business service establishments such as printing, engraving and blueprinting, warehouses and material storage and sales yards, research laboratories, and processing, fabricating and assembly plants: at least one off-street parking space for each two persons employed or anticipated being employed on the largest shift.
E.
Apartment house, townhouse and multiple dwellings: at least 1 1/2 off-street parking spaces for each dwelling unit, with no spaces to be located between the building and the street.
F.
All other uses not provided for: at least one space for each use or at least one off-street parking space for each 400 square feet of floor area of the building, whichever is greater.
G.
For the purpose of this by-law, a space of 200 square feet of approximate dimensions for the parking of an automobile, exclusive of access drives or aisles, shall be considered as one off-street space.