A.
By resolution adopted on the sixth day of October 1955, the Town Board, pursuant to the provisions of Article 16 of the Town Law, authorized the Planning Board of the Town of Ithaca to approve plats for subdivisions within that part of the Town of Ithaca outside the limits of any incorporated village, said resolution reading as follows: "RESOLVED, that the Planning Board shall be, and it hereby is, authorized and empowered to approve plats showing new streets or highways within that portion of the town outside the limits of the Incorporated Village of Cayuga Heights, and to exercise all other powers, delegated to it by the provisions of Article IX of the Zoning, Building and Planning Ordinance of the Town of Ithaca enacted October 7, 1954,[1] or which may be delegated to it by resolution of the Town Board, pursuant to the provisions of § 274 of the Town Law,[2] or which are described or contemplated under the provisions of Article 16 of the Town Law or acts amendatory thereof, with reference to Zoning and Planning; and be it further RESOLVED, that the Town Clerk shall file with the Clerk of the County of Tompkins a certificate in the form herewith attached, certifying that the Planning Board has been authorized to approve plots showing new streets or highways in accordance with the provisions of § 276 of the Town Law."
B.
By resolution adopted on the fifth day of November 1955, the Town Board authorized the Town Planning Board to confirm or make changes to the Town Zoning Regulations[3] simultaneously with the approval of a subdivision plat to the extent permitted by law, said resolution reading as follows: "RESOLVED that the Planning Board be, and it hereby is, empowered at the time of the approval of a plat either to confirm the zoning regulations of the land so platted as shown on the Official Zoning Maps of the Town or to make any reasonable change therein, upon following the procedure required by § 281 of the Town Law."[4]
C.
The Subdivision Regulations of the Town of Ithaca were adopted by the Town Planning Board on March 24, 1956, and approved by the Town Board on March 24, 1956.
D.
By resolution adopted on the fourth day of October 1982, the Town Board amended the Town of Ithaca Subdivision Regulations, reaffirmed the delegation to the Planning Board of it powers under § 281 of the Town Law, as amended,[5] and further delegated to the Planning Board the authority to mandate clustered subdivisions in the Town of Ithaca. Said resolution further authorized the Planning Board to require developers to submit a clustered subdivision plan whenever the Planning Board believes that the application of such procedure would benefit the Town. The authority of the Planning Board to require clustering is limited by the conditions of Article V of these regulations, adopted by the Planning Board on November 11, 1982, and approved by the Town Board on November 16, 1982, and by the provisions of Article 16, § 281, of the Town Law.
E.
The Subdivision Regulations of the Town of Ithaca are further amended to read as follows.