(a)   In this district, a one-family dwelling and related accessory structures on a single lot or parcel in existence at the time of the adoption of this Code may be enlarged, repaired or altered in accordance with Chapters 1242, 1248, 1249, or 1251 as determined by the Zoning Inspector.
   (b)   While solely new one-family residences and related accessory structures are not a permitted use in this district, one dwelling unit is permitted on an upper level of a building when the use of the story at grade level is permitted use in this district.
(Ord. 08-33. Passed 5-4-09.)