Lot width. The minimum lot width of any lot shall be measured along the minimum required building setback line as required for the district in which it is located. The lot width measured at the street line shall not be less than 80% of the minimum required lot width or 40 feet, whichever the greater.

Corner lots. At all street intersections, no obstruction to vision (other than an existing building, post, column, hedge 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 requirements of this chapter; and, if already less than the minimum required by this chapter, the area or dimension may be continued and shall not be further reduced.