No side yard is required for a building or structure other than a detached single dwelling unit or semi-detached single dwelling unit; however, if a side yard is provided it shall be at least two inches (2 in.) wide for each one foot (1 ft.) of height of building but no less than five feet (5 ft.).
A minimum side yard of eight feet (8 ft.) shall be provided for a detached single dwelling unit or semi-detached single dwelling unit.
Any portion of a building set back from the side lot line shall be considered a side yard and not a court.
D.C. Mun. Regs. tit. 11, r. 11-G406