Existing zone lots of record. In any R District only a single-family detached dwelling may be erected on a nonconforming zone lot of official record at the effective date of this chapter, irrespective of its area or width, 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 the subject zone lot; provided, however, that no lot or lots in single ownership shall hereafter be reduced so as to create one or more nonconforming lots; and provided, further, that on any nonconforming lot, no side yard shall be less than five feet, nor shall any side yard adjoining a side street be less than 10 feet; and provided, further, that the rear yard of any such lot shall, in no case, be less than 10 feet, and the front yard shall be as required in Subsection C(2) hereof.

Minimum lot sizes where there is no public water or sewer. Unless the regulations of the district in which they are located or other state or local regulations require greater lot areas or lot widths, the following regulations shall apply:

Lot frontage. The minimum lot frontage of any lot shall be measured along the minimum building setback line as required for the district where located. The width of any lot in any district, except C and M Districts, shall not be less than 30% of the depth of said lot at the front lot line; provided, however, that no lot need exceed a depth of 300 feet, nor shall any lot be less than 50 feet along the front lot line.

Corner lots. At all street intersections, no obstructions to vision (other than an existing building, post, column 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.

Through lots. Where a single lot under individual ownership extends from a street to an alley, the widest street shall be deemed the street upon which the property fronts, and no principal structures and no dwelling shall be erected on the rear of such a lot.

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.

General application. No building or structure shall have a greater number of stories than are permitted in § 181-15 hereof, provided, further, that the aggregate height of such buildings or structures shall not exceed the number of feet permitted in § 181-15, except as follows:

Permitted exceptions.

Side yards.

Front yard exception.

Front yard of corner lot. The front yard of any corner lot shall be established on the wider of the two streets abutting said lot, except where the widths of the two abutting streets are equal, then the front yard may be established on either street.

Projections into required yards. Minimum side yard requirements shall be determined by measuring the distance between the foundation wall and property line, however, certain architectural features may project into required yards as follows:

Maximum permitted height. One and one-half (11/2) stories or 15 feet.

Minimum yard regulations.

Enclosed uses. Any enclosed use, as may be required by this chapter to be landscaped in accordance with this subsection, shall provide a fence or visual screen consisting of evergreen or evergreen-type hedges or shrubs, maximum height of six feet, spaced at intervals of not more than six feet, located and maintained in good condition within minimum five 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, 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 maintained in good condition or evergreen-type hedges or shrubs spaced at intervals of not more than six feet. Said areas shall be surfaced with an asphaltic or cement binder pavement or similar durable and dustless material which shall be so graded and drained as to dispose of all surface water accumulated within the area without causing adverse conditions on abutting properties and streets.

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

Uses to be enclosed. All C and M 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.

Increased density for housing for the elderly. In any R District where housing shall be designed for occupancy by the elderly persons, 60 years of age or older, the minimum lot area required per dwelling unit shall be reduced to permit a maximum density of 126 dwelling units for elderly persons per net acre.

Ramps constructed for the purpose of providing dwelling unit access for the mobility impaired are exempt from the setback requirements of this Code. Such ramps are to be uncovered.