In Subarea A1, as shown on Map 1 (Special Inwood District – Subdistricts and Subareas) in the Appendix to this Chapter, when a volume above a street, or portion thereof, has been eliminated, discontinued or closed, such volume may, at the option of an owner of a zoning lot adjoining such volume, be considered part of the adjoining zoning lot, and a development or enlargement may be located within such volume that is part of or connected to a building on the adjoining zoning lot utilizing floor area generated by the adjoining zoning lot, provided that the street below the volume is provided with lighting in accordance with Department of Transportation standards. In no event shall such volume contribute to the amount of lot area of any zoning lot for the purposes of generating floor area.