No new building shall be erected and no existing building shall be altered or reconstructed to project beyond the average setback line of the buildings situated within the same block and within two hundred (200') feet of either side lot line and measured in a direction parallel to the street on which the lot faces.

No dwelling house either existing or in the process of construction at the time of the passage of this chapter shall be deemed to be nonconforming as to minimum frontage and minimum plot area, but such construction or alteration shall be otherwise in conformity with the provisions of this chapter.

Where there is no existing building in the block, the minimum front yard setback shall be 30' feet from the front lot line.

In case of a corner lot, the owner shall designate either of the two exterior yards as the front yard, the other to be governed by the side yard provision of this subsection.

There shall be two side yards. The least dimension of either side yard shall be not less than ten (10') feet; provided, however, that in the case of a corner lot, the exterior side yard shall be not less than thirty (30') feet in width and the interior side yard not less than ten (10') feet in width.

Each side yard of an interior lot having a frontage of sixty-five (65') feet or more shall be not less than ten (10') feet; where a lot has a frontage less than sixty-five (65') feet, each side yard shall be not less than seven and one-half (7 1/2') feet. However, in the case of a corner lot, the exterior side yard shall be not less than thirty (30') feet.

An accessory building on a corner lot shall be set back a distance equal to the average setback line of the buildings situated on the side street. Where there is no established setback line, the accessory building shall be set back a minimum of 30' feet from the street line.

No building to be used as a dwelling shall be constructed or altered in the rear of a building situated on the same lot, nor shall any building be constructed in front of or moved to the front of a dwelling situated on the same lot. These provisions shall not be construed, however, as preventing the erection, alteration and maintenance of dwelling quarters in connection with an accessory building upon the rear of the lot when the persons occupying such quarters are employed in domestic service upon the premises.

Setback and side yards for accessory buildings. No accessory building shall be nearer than ten (10') feet to either side yard, nor shall any accessory building be nearer than five (5') feet to any rear line.

A detached garage shall have a side yard of at least five (5') feet regardless of lot frontage but shall not be nearer than five (5') feet to any rear lot line, provided that the garage is set back beyond the rear of existing buildings.

A shed shall have a side yard of at least five (5') feet regardless of lot frontage and shall not be closer than five (5') feet to any rear lot line.