(1) Use Regulations. Additional permitted uses are all uses permitted in "RC-2" Residential Districts.

(2) Area Regulations.

(a) Yards and Courts. The following restrictions shall apply to all properties within this district, with the exception that subsections (.1), (.2), and (.3) below shall not apply to any lot for which the occupied area of buildings is 40% or less of the lot area.

(.1) Additions to Existing Buildings, and Newly Erected Buildings which Contain Less than Three Families:

(.a) Yards and Courts with Legally Required Windows. Any wall with one or more legally required windows shall be a minimum horizontal distance of 15 feet from (1) the opposite side of any street which the wall faces, (2) any facing lot line which is not a street line, (3) any opposing wall on the same lot; provided, that every court between wings of the same building shall have no required minimum horizontal dimension but the depth shall not be greater than the width of the court, and every inner court shall have a minimum horizontal dimension equal to or greater than the average height of the walls forming the court;

(.b) Yards and Courts without Legally Required Windows: Yards and courts without legally required windows shall be governed by the following provisions:

Front Yards. No front yards shall be required;

Side Yards and Open Courts. When side yards and open courts are used, except open courts between wings of the same building, they shall have a minimum width of 5 feet for a building not over 5 stories in height and a minimum width of 8 feet for buildings over 5 stories;

Open Courts Between Wings of the Same Building. The minimum width between wings of the same building shall be 12 feet;

Inner Courts. The least dimension of an inner court shall be 8 feet. Minimum area of such court shall be 100 square feet. Such courts of less area than 300 square feet shall not be permitted for any building used for dwelling purposes except when used as vent shafts;

(.2) Newly Erected Buildings Containing Three or More Families and Less than Five Stories in Height:

(.a) Yards and Courts with Legally Required Windows. Any wall with one or more legally required windows shall be located so that every point of the wall shall be a minimum horizontal distance which is not less than the height of the wall, from: (1) the opposite side of any street which the wall faces, (2) any facing lot line which is not a street line, (3) any opposing wall on the same lot; provided, that every inner court shall have a minimum horizontal dimension equal to or greater than the average height of the walls forming the court;

(.b) Yards and Courts without Legally Required Windows. Yards and courts without legally required windows shall be governed by the following provisions:

Front and rear yards shall not be required;

Side yards and open courts, when used, shall have a minimum width of 8 feet;

Open courts between wings of the same building shall have a minimum width of 12 feet;

Inner courts shall have a least dimension of 8 feet, and a minimum area of 100 square feet;

(.3) Newly Erected Buildings Containing Three or More Families and Five Stories or Over in Height:

(.a) Yards and Courts with Legally Required Windows. Any wall with one or more legally required windows shall be located so that every point of the wall shall be a minimum horizontal distance of 50 feet from: (1) the opposite side of any street which the wall faces, (2) any facing lot line which is not a street line, (3) any opposing wall on the same lot; provided, that every court between wings of the same building shall have no required minimum horizontal dimension but the depth shall not be greater than the width of the court, and every inner court shall have a minimum horizontal dimension equal to or greater than the average height of the walls forming the court;

(.b) Yards and Courts without Legally Required Windows. Yards and courts without legally required windows shall be governed by the following provisions:

Front and rear yards shall not be required;

Side yards and open courts, when used, shall have a minimum width of 8 feet;

Open courts between wings of the same building shall have a minimum width of 12 feet;

Inner courts shall have a least dimension of 8 feet, and a minimum area of 100 square feet;

(3) Off-street Parking. Off-street parking shall be provided in accordance with Chapter 14-1400 of this Title. Furthermore, all commercial uses permitted in this district shall provide additional off-street parking on the basis of one parking space for each 1,000 square feet of commercial gross floor area of the building; provided, that requirements shall be rounded to the nearest whole number of spaces, with 1/2 or more being considered to require one additional space.

(4) Off-street Loading. Off-street loading shall be provided for that portion of any building erected which is used for commercial uses listed in this district. Said loading shall be in accordance with §14-1405 of this Title.