Beyond one hundred feet of a street line
M1 M2 M3
In all districts, as indicated, for corner lots, and for zoning lots that are bounded by two or more streets that are neither corner lots or through lots, the portion of a side lot line beyond 100 feet of the street line that it intersects shall be considered a rear lot line and a rear yard with a minimum depth of 20 feet shall be provided where such rear lot line coincides with a rear lot line of an adjoining zoning lot.
ZONING LOT BOUNDED BYTWO OR MORE STREETS
(NEITHER A CORNER LOT NOR A THROUGH LOT)