In any district, a structure may be erected on a nonconforming lot-of-record at the effective date of this Chapter irrespective of its area or width if the owner of which does not own any adjoining property which would create a conforming lot if all or part of said property were combined with a nonconforming lot-of-record; providing, however, that no lot or lots, in single ownership shall hereafter be reduced so as to create one or more nonconforming lots. In all districts, no front yard and no streetside yard shall be less than 10 feet. In R Districts, a minimum side yard and rear yard of five feet are required, except in cases of hardship the Zoning Hearing Board may waiver or lessen the side yard requirement.

Lot Size Measurement.

Lot Frontage and Depth. The minimum lot frontage of any lot shall be measured along the minimum building setback line as required for the district where located. The front yard shall equal not less than 1/3 of the lot depth in residential zones, except for lots-of-record.

Corner Lots. At all street intersections no obstruction to vision (other than an existing building, post, column, fence, or tree) exceeding 30 inches in height above the established grade of the street at the property line shall be erected or maintained on any lot within the triangle formed by the street lot lines of such lot and a line drawn between points along such street lot lines 30 feet distant from their points of intersection.

Required Area or Space Cannot Be Reduced. The area or dimension of any zone lot, yard, parking area or other space shall not be reduced to less than the minimum required by this Chapter; and, if already less than the minimum required by this Chapter, said area or dimension may be continued and shall not be further reduced.

Side Yards.

Front Yard Exception. When an unimproved lot is situated between two improved lots, each having a principal building within 25 feet of any side lot line of such unimproved lot, the front yard may be reduced to the greatest depth of the front yard of the two adjoining improved lots, but shall be not less than 10 feet; provided, however, that where any lot shall front on a right-of-way which is proposed, on the Official Map of the Borough to widened, the front yard of such lot shall be as required by Part 3 hereof, and shall be measured from such proposed future right-of-way.

Additional Yards Required Where "C" and "I" Uses and Nonresidential "S" Uses Abut R Districts. All uses first permitted in less restrictive district than R which abut, at the lot line or on the same street, an R District, shall provide yards, where they abut, in accordance with the yard requirements for such R District which they abut, except that in such instances the minimum yard in any C-3, C-4, I-1 or I-2 District shall be not less than 50 feet.

Enclosed Uses. Any enclosed use as may be required by this Chapter to be landscaped in accordance with this subsection shall provide a fence eight feet high or a visual screen consisting of evergreen, or evergreen-type hedges or shrubs, spaced at intervals of not more than five feet, located and maintained in good condition within 15 feet of the property line adjoining or abutting an R District.

Unenclosed Uses. Any use which is not conducted within a completely enclosed building, except for nurseries, railroads and the display for sales purposes of new or used cars, trucks, trailers, or farm equipment, in operative condition, shall be entirely enclosed by a fence as stated in Subsection 1 and maintained in good condition or evergreen-type hedges or shrubs spaced at intervals of not more than five feet.

Unenclosed I Uses. All I uses which are not conducted wholly within a completely enclosed building shall be not less than 100 feet distant from any R or S District.

Uses to Be Enclosed. All C and I uses shall be conducted wholly within a completely enclosed building except for off-street parking and loading facilities, new and used car lots, service stations, terminals, storage yards and similar uses.

Access to Dwellings. No dwelling shall hereafter be erected or altered unless there is direct access to it through an open space on the same lot. Such open space shall be at least 12 feet wide and shall extend from the dwelling to a public street or highway, or to a private highway not less than 20 feet in width and having a cartway so constructed and maintained that vehicles of all kinds may readily pass over it at all seasons of the year. For the purposes of this section, an alley shall not constitute a public street or highway.