[Added 10-18-2022 by L.L. No. 10-2022; amended 12-13-2022 by L.L. No. 16-2022]
A. 
Maximum gross floor area (GFA):
(1) 
The gross floor area shall not exceed the permitted square footage calculated as follows:
(a) 
Lots containing up to 10,000 square feet of lot area: 2,100 square feet maximum.
(b) 
Lots containing up to 20,000 square feet of lot area: 2,100 square feet plus 12.5% of the lot area in excess of 10,000 square feet up to a total of 3,350 square feet maximum.
(c) 
Lots containing up to 30,000 square feet of lot area: 3,350 square feet plus 10% of the lot area in excess of 20,000 square feet up to a total of 4,350 square feet maximum.
(d) 
Lots containing up to 40,000 square feet of lot area: 4,350 square feet plus 7.5% of the lot area in excess of 30,000 square feet up to a total of 5,100 square feet maximum.
(e) 
Lots up to 80,000 square feet of lot area: 5,100 square feet plus 5% of the lot area in excess of 40,000 square feet up to a total of 7,100 square feet maximum.
(f) 
Lots up to 200,000 square feet of lot area: 7,100 square feet plus 2.5% of the lot area in excess of 80,000 square feet up to a total of 10,100 square feet maximum.
(g) 
All lots in excess of 200,000 square feet of lot area: 10,100 square feet plus 1% of any additional lot area.
(2) 
In determining the maximum permitted gross floor area, the following provisions shall apply:
(a) 
“Lot area” shall have the same meaning as the area of a lot or parcel defined as “buildable land” in this chapter.
(b) 
In determining the maximum lot coverage, whether under the gross floor area requirement or the percentage restriction in this section, the more restrictive requirement or standard shall apply.
(c) 
The new construction, reconstruction or improvement of any dwelling shall be limited by the standards established by this code, or by variance not to exceed the average GFA of dwellings in the immediate area as determined by the Zoning Board of Appeals.
(d) 
Any existing dwelling as of the effective date of this section that exceeds the maximum GFA defined herein shall be deemed nonconforming for the purpose of this chapter.
(e) 
The gross floor area restrictions set forth in this section shall not apply to farm labor housing.
(3) 
The maximum gross floor area restrictions imposed by this §280-207 shall not be applicable to any project otherwise subject to the restrictions for which a complete construction application has been submitted for approval to Town of Southold Building Department or discretionary board, prior to the enactment date of this section. Following the issuance of a certificate of occupancy, the structure shall be deemed preexisting nonconforming.
A. 
Any building or structure on any lot in the A-C, R-40, R-80, R-120, R-200, and R-400 Zoning Districts must be within the sky plane.
B. 
If, in the determination of the Building Inspector, conformance with Subsection A is not possible, a building or structure may be permitted so long as the overall height is not in excess of the average height of the adjacent buildings or structures within 500 feet to each side of the subject parcel, on the same side of the street and in the same zoning district.
C. 
The sky plane restrictions imposed by this §280-208 shall not be applicable to any project otherwise subject to the restrictions for which a complete construction application has been submitted for approval to Town of Southold Building Department or discretionary board prior to the enactment date of this section. Following the issuance of a certificate of occupancy, the structure shall be deemed preexisting nonconforming