§ 450-61. General provisions.

A. 

Off-street parking, loading and stacking facilities, as hereinafter specified, shall be provided as a condition precedent to the occupancy of all buildings:

(1) 

Whenever a new building is constructed or a new use established.

(2) 

Whenever an existing building is altered and there is an increase in the number of building units, seating capacity or floor area of the building.

(3) 

Whenever an existing building is changed to more intensive use requiring more off-street parking, loading or stacking facilities.

B. 

Continuation of facilities. Required off-street parking, loading and stacking facilities in existence on the effective date of this chapter shall be continued and maintained in operation and shall not be reduced below the requirements of this chapter during the period that the principal use is maintained.

C. 

Units of measurement.

(1) 

Employees. Whenever parking requirements are based on the number of employees, it shall mean the maximum number of employees on duty in the premises at one time or any two successive shifts, whichever is greater.

(2) 

Net floor area. The net floor area shall be the total floor area less permanent concourses, stair halls, lobbies, elevator shafts, areas permanently devoted to warehousing and rooms housing equipment servicing the entire building.

(3) 

Seating capacity. The number of seating units installed or indicated on plans shall not be less than one unit per 15 square feet of floor area. Where units are not indicated on the plan, it shall be assumed that seating units will be provided at a ratio of one for each 10 square feet of floor area.

(4) 

Fractional requirements. When units of measurement used in computing the number of required off-street parking, loading and stacking spaces result in the requirement of a fractional space, the nearest whole number of off-street parking spaces shall be required.