In the Business B-2 District, no building shall be erected, altered or used and no lot or premises shall be used except in conformance with Article XVIII of this chapter.

Side yards shall not be required, except where adjoining a residential zoning district, in which case the depth of such yard shall not be less than 20 feet.

There shall be a rear yard, the depth of which shall not be less than 10 feet, except where adjoining a residential zoning district, in which case the depth of such yard shall not be less than 20 feet.

Any new building constructed shall set back from the property line sufficiently to allow for a sidewalk width of a minimum of 12 feet and not greater than 20 feet as measured from the face of the curb. The developer of the new building shall be responsible for constructing the sidewalk to the specifications promulgated by the Department of Buildings.

No building shall exceed three stories, nor shall any building exceed 40 feet in height.

Except as exempted by § 248-252 of this chapter, no building permit shall be issued and no building or use shall be established, except in conformity with a site development plan or special use permit, as appropriate, approved in accordance with Articles XXVIII and XXIX of this chapter.

All property located wholly or partially within this district shall be subject to Article XXX hereof.

Each dwelling unit, if any, located in a building erected in this district shall provide a minimum clear floor area of the following square footage: