There shall be no more than one (1) driveway cut or entrance within the front yard of a single-family residential lot, except for approved circular driveways complying with all the provisions of this section, two (2) driveway cuts or entrances are allowed. Circular driveways constructed prior to January 1, 2008, may be constructed of rock, gravel, or crushed stone. No more than forty percent (40%) of the required front yard of a single-family residential lot shall be paved. For a single-family residential lot that is a corner lot, one (1) additional driveway cut or entrance is allowed along the street adjacent to the side or rear yard of the lot.