R3 R4A R4-1

In lower density growth management areas in the districts indicated, the provisions of paragraph (b) of Section 23-142 (Open space and floor area regulations in R1 and R2 Districts with a letter suffix and R3 through R5 Districts) shall be modified to allow the floor area ratio set forth in the table of such Section to be exceeded by 20 percent, provided that any such increase in floor area is located in any portion of a cottage envelope building covered by a sloping roof that rises at least three and one-half inches in vertical distance for each foot of horizontal distance.