Minimum lot area and lot width regulations are set forth in Section 23-11 for R1 through R5 Districts and Section 23-12 for R6 through R12 Districts.  

However, such lot area and lot width regulations shall not apply to zoning lots in existence on December 5, 2024, where the lot area or lot width was less than the prescribed minimums of such Sections, and after December 5, 2024, such lot area or lot width has not decreased.  

Where two or more buildings that are single- or two-family detached or zero lot line residences are located on a zoning lot, the applicable minimum lot area requirement set forth in the table in this Section shall be multiplied by the number of such buildings on the zoning lot. For the purposes of applying such calculation, detached buildings that are permitted obstructions in a required rear yard or rear yard equivalent shall not be included.