The provisions of this chapter set forth in the Schedules of Area and Bulk Regulations[1] shall be subject to such exceptions, additions, or modifications as provided herein by the following supplementary area and bulk regulations.

Except for farm operations, multifamily developments, community facilities, and public utilities, only one principal structure shall be permitted on one lot.

The area or dimension of any lot, yard, parking area, or other space shall not be reduced to less than the minimum required by this chapter, except as provided by §§ 165-68 and 165-85; if already less than the minimum required by this chapter, said area or dimension may be continued but shall not be further reduced.

Notwithstanding the provisions of § 165-21 and Appendix B, rear lots with a minimum of 25 feet of road frontage may be created pursuant to § 137-16F of Chapter 137, Subdivision of Land.

No building or structure shall have a greater number of stories or greater height than is permitted in the district in which such building or structure is located, except as noted below.

When an accessory structure is attached to the principal building, all the yard requirements of this chapter as set forth in Appendix B of this chapter applicable to the principal building shall be met. If an accessory structure of not more than 600 square feet is not attached to the principal structure on a nonconforming lot of one acre or less or on a one acre conforming lot, it may be located at a distance which is not less than 50% of the distance required by Appendix B of this chapter from the side and rear lines of the property, provided it is not located any closer to the road(s) bordering the property than the principal structure. In addition and subject to the foregoing, accessory structures are permitted as set forth in Appendix A of this chapter[1] subject to the following requirements.

Every part of a required yard must be open to the sky, unobstructed except for trees and accessory structures in a rear or side yard, and except for the ordinary projection of open porches, balconies, steps, sills, belt courses, cornices, and other ornamental features; provided, however, that such features shall not project more than three feet into any required yard.

Where the side wall of a building is not parallel with the lot line or is broken or otherwise irregular, the side yard may be varied. In such a case, the average width of the side yard shall not be less than the otherwise required minimum width; provided, however, that such side yard shall not be narrower at any one point than one-half the otherwise required minimum width.

At all street intersections, no obstruction to vision (other than an existing structure, 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 the points along such street lot lines 30 feet distant from their points of intersection.[1]