Any building or structure located, erected or changed or any use of land or premises in any district shall conform to the requirements set forth in the Table of Dimensional Requirements except when a portion of a lot is taken or conveyed for a public purpose.
[Editor's Note: The Table of Dimensional Requirements is included as an attachment to this chapter.]
A. 
Residences in nonresidential districts. Residences permitted in the CC, LC, GC, O, and GI Districts must comply with the requirements of the RA District.
B. 
If public sewer is not available to a lot, then the minimum lot area shall be 40,000 square feet with 200 feet of frontage in all districts. If public sewer and public water are not available to a lot, then the minimum lot area shall be 50,000 square feet with 200 feet of frontage.
C. 
Front yard exception. Where the alignment of existing structures on adjoining lots differs from the above-required front yard depth, the required minimum front yard may be equal to the adjoining front yards.
D. 
Corner lots. A corner lot having frontage on two streets shall have the minimum required frontage on at least one of the streets measured from the side lot line to the interior angle of intersection, which is 135° or less, or the extended lot lines in case of a curved street or intersection (see diagram under the definition of "lot, corner" in § 200-3B). Frontage on only one street shall be used to meet the minimum frontage requirement. Corner lots shall have two front yards, two side yards, and no rear yard. Corner lots, in all districts except the CC District, shall have a triangle of clear sight inside which no object shall be more than three feet above the elevation of the center line of the street at the intersection.
E. 
Reduced lot dimensions.
(1) 
The Inspector of Buildings may issue a building permit for residential lots in the RA, SR, and H Districts with reduced lot area, frontage, and width requirements of not less than the average lot dimensions of residential lots within 300 feet on the same street. All lots with reduced dimensional requirements shall be served by public water and sewer and shall not be further reduced or subdivided. A lot with dimensions previously reduced under Subsection E(2) below shall not be eligible for a reduction under this provision. A list or a plan showing the lot owner, lot location, lot dimensions, and lot area of all lots within 300 feet of the lot under review, on the same street, and certified by the Greenfield Assessor's office shall be submitted with the building permit application.
(2) 
The dimensional requirements for lots in any district may be reduced not more than 20% under a special permit from the Zoning Board of Appeals only if the Board finds that:
(a) 
There is some difficulty in developing the lot which cannot be overcome without a reduction in the dimensional requirements or a site design is proposed which is more suitable for the lot than one which would be allowed under the permitted dimensional requirements;
(b) 
Adjacent properties would not be adversely impacted; and
(c) 
The reduced dimensions would not be detrimental to the public good and would not substantially derogate from the intent or purpose of this chapter.
(3) 
Lots reduced under this section shall not be further reduced or subdivided. Lots previously reduced under Subsection E(1) above shall not be eligible for a reduction under this provision. Lots not served by public sewer or lots located in the Water Supply Protection District shall not be eligible for a reduction in lot area under this provision.
(4) 
New building lots located at the end of a cul-de-sac or along a curve in a street may have reduced frontage of no less than 50 feet provided that the radius of the cul-de-sac or curve is not greater than 300 feet measured at the street line and further provided that the lot width at the building line is equal to or greater than the distance normally required in the district.