1-Acre Building Lot in Water Mill, NY - Fully Approved Plans & Permits. A rare opportunity to build a modern Hamptons retreat in the heart of Water Mill. This one-acre property is delivered with fully approved plans and permits for a 7-bedroom, 8-bathroom luxury residence totaling 6,284 sq. ft., plus a 2,755 sq. ft. finished basement. In addition to the approved plans, the seller has developed an alternative modern design concept accompanied by a complete interior design package - offering a turnkey vision for a contemporary and elegant home. The design emphasizes open living spaces, abundant natural light, and a seamless indoor-outdoor flow, all complemented by a private pool area ideal for entertaining and relaxation. With all approvals in place, this project is ready to break ground immediately. Located south of the highway in one of Southampton's most sought-after enclaves, this offering is ideal for developers, investors, and end-users looking to build their dream Hamptons home.
11 Bay Avenue | MLS# 998172
This land located at 11 Bay Avenue , Water Mill, NY 11976 is currently listed for sale with an asking price of $1,749,000. The property has approximately 1.00 Acres. Bay Avenue is located within the Southampton school district. Search Water Mill real estate on allisonplatt.laffey.com today.
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All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 05/14/2026. The listing information on this page last changed on 05/14/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Thu 05/14/2026 12:01:28 AM EST) or OneKey MLS (last updated Wed 05/13/2026 11:53:24 PM EST). Real estate listings held by brokerage firms other than Laffey Real Estate may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
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11 Bay Avenue | MLS# 998172
This land located at 11 Bay Avenue , Water Mill, NY 11976 is currently listed for sale with an asking price of $1,749,000. The property has approximately 1.00 Acres. Bay Avenue is located within the Southampton school district. Search Water Mill real estate on allisonplatt.laffey.com today.