All buildings and structures classified as residential uses shall comply with the following requirements when located in a residential area.
(A) Front yard. All buildings shall be set back from street right-of-way lines to comply with the following front yard requirements.
(1) The minimum depth of the front yard shall be 25 feet.
(2) If 25% or more of the lots on one side of the street between two intersection streets are improved with buildings all of which have observed an average setback line of greater than 25 feet, and no building varies more than five feet from this average setback so established by the existing buildings; but this regulation shall not require a front yard of greater depth than 40 feet.
(3) When a yard has double frontage, the front yard requirements shall be provided on both streets.
(B) Side yard.
(1) For dwellings located on an interior lot a side yard of not less than five feet shall be provided on both sides of the main dwelling for the first story and an additional three feet of side yard shall be provided for each additional story or part thereof.
(2) For unattached buildings of accessory use, there shall be a side yard of not less than five feet; provided, however, that unattached one story buildings of accessory use shall not be required to be set back more than three feet from an interior side lot line when all parts of the accessory building are located more than 75 feet behind the front property line.
(3) For dwellings and building accessory thereto, located on corner lots, there shall be a side yard setback from the intersecting street of not less than 15 feet in case such lot is back to back with another corner lot and 20 feet in every other case.
(4) Churches and main and accessory building, other than dwellings and buildings accessory to dwellings, shall be set back from all exterior and interior side lot lines a distance of not less than 25 feet.
(C) Rear yard. For main buildings, other than garage apartments, there shall be a rear yard of not less than 20% of the depth of the lot, whichever is smaller. Garage apartments may be located in the rear yard of another dwelling, but shall not be located closer than ten feet to the rear lot line. Unattached buildings of accessory use may be located in the rear yard of a main building.
(D) Lot width. There shall be a minimum lot width of 50 feet at the front building line for single-family and two-family dwellings. For each dwelling housing three families, there shall be a minimum lot width of 60 feet at the front building line, and for each dwelling housing more than three families there shall be a minimum lot width; at the front building line, of 60 feet, plus ten additional width for each family, more than three families, occupying such dwelling.
(E) Intensity of use.
(1) There shall be a lot area of not less than 6,000 square feet for a single-family dwelling, not less than 7,000 square feet for a two-family dwelling and not less than 9,000 square feet for a multiple-family dwelling plus an additional area of not less than 2,000 square feet for each family more than three families, occupying such dwelling.
(2) There shall be a lot area of not less than 7,000 square feet where a garage apartment is located on the same lot with a single-family dwelling.
(a) When a garage apartment is located on the same lot with a two-family or multiple-family dwelling, the lot area shall provide not less than 2,000 square feet more than is required for the two-family or multiple-family dwelling.
(b) Not more than one garage apartment shall be permitted on a single lot with one main building.
(3) Where a lot has less area than herein required and all boundary lines of that lot touch lands under other ownership on the effective date of these regulations that lot may be used for single-family dwelling purposes only.
(4) For churches and main and accessory buildings, other than dwellings and buildings accessory to dwellings, the lot area shall be adequate to provide the yard areas required by this section.
(F) Coverage. Main and accessory buildings, shall not cover more than 35% of the lot area. Accessory buildings shall not cover more than 30% of the rear yard.
(G) Open space. No open space or lot area required for a building or structure shall be occupied by, or counted as open space for any other building or structure, during the life of such building or structure:
(1) Open eaves, cornices, window sills and belt courses may project into any required yard a distance not to exceed two feet. Open porches may project into a front or rear yard a distance not to exceed five feet;
(2) No dwelling shall be erected on a lot which does not abut on at least one street for at least 35 feet and have a width of at least 50 feet at the building line. A street shall form the direct and primary means of ingress and egress for all dwelling units. Alleys, where they exist, shall form only a secondary means of ingress and egress. A garage apartment may be built to the rear of a main dwelling if all other provisions of these regulations are complied with; and
(3) An attached or detached private garage which faces on a street shall not be located closer than 25 feet to the street easement line.
(Prior Code, § 12-206)