In any district, any principal building may be erected to a height in excess of that specified for the district, provided such front, side, and rear yard is increased one foot for each one foot of such additional height.

Nothing herein contained shall be construed so as to limit the height of church spires, belfries, cupolas and domes not for human occupancy, monuments, observation towers, transmission towers, chimneys, smokestacks, derricks, flagpoles, radio towers, masts and aerials, ventilators, skylights, water tanks and necessary appurtenances usually carried above roof level. Such features, however, shall be erected only to such height as is necessary to accomplish the purpose they are to serve.

Other provisions of this chapter notwithstanding, nothing shall prohibit the use of a lot of less than the required area and width for a single-family dwelling in any district, provided that all the other provisions of this chapter are complied with, when such lot, at the time of the passage of this chapter, was owned, or under contract of sale by persons other than those owning or leasing any adjoining lots.

Where the frontage on one side of a street between two intersecting streets is zoned partly as a A, LR, LR-2, or HR and partly B-1, B-2, I-1 or B/LI, the front yard depth in the B-1, B-2, I-1 or B/LI District in such block frontage shall be equal to the required front yard depth of the A, LR, LR-2, or HR district for a distance of 50 feet into the B-1, B-2, I-1 or B/LI District.

In such cases in residential zones where frontage on the same side of the street within 500 feet is 50% or more developed, then the required front yard for a new structure may be modified to the average for such existing development. Otherwise, the requirements of the § 609A shall apply.

Where a lot in a B-1, B-2, I-1 or B/LI District abuts a lot in A, LR, LR-2, or HR District, there shall be provided along such abutting lines a yard equal in width or depth to that required in said A, LR, LR-2 or HR District.

In the case of lots which comply with the provisions for modification of size under § 802A, the combined total side yard requirements as specified in the schedule shall be reduced by six inches for each foot by which a lot is less than the minimum lot width requirement specified in the schedule for the zone in which located. In any case, the side yard area shall not be reduced to less than 50% of the requirement of the schedule.[1]

On every corner lot in a residential district, there shall be provided on the side street a yard equal in depth to the required front yard depth on said side street. On such lot "front" yards are provided, the other yards may be considered side yards and no rear yard shall be required, providing an open yard area of at least 4,800 square feet in any LR District, 2,400 square feet in any LR-2 District, and 2,400 square feet in any HR District is maintained.