Any parcel of land with an area or width less than that prescribed
for a lot in the zone in which such lot is located, which was under
one ownership and in existence at the time of the adoption of this
chapter, and where the owner thereof owns no adjoining land, may be
used as a lot for any purposes permitted in the zone, provided that
the minimum lot size requirements for such lot shall be 7,500 square
feet of lot area and 60 feet of lot width, and further provided that
all other regulations prescribed for the zone by this chapter are
complied with.
Where the topography is such that, as determined by the Zoning
Officer, access to the private garage built back of the front building
line as required by this chapter is impracticable, it shall be permissible
to place such building, not exceeding 12 feet in height, within the
front yard space but not closer to the street line than 18 feet.