A rare opportunity to bypass the multi-year Hamptons approval process. 11 Bay Avenue, Water Mill offers fully approved, permit-ready plans for a sophisticated 5,714 SF residence with an additional 2,755 SF finished basement and a 532 SF pool house/cabana — totaling approximately 8,469 SF of finished living space.The approved design features:• 2,779 SF first floor with seamless indoor/outdoor living• 2,935 SF second floor with a 236 SF private terrace• 2,755 SF finished basement• 532 SF pool house/cabana• Generous covered outdoor living: 484 SF rear covered patio, front covered porch and entryNotably, the approved 6,284 SF above-grade footprint sits well below the 8,712 SF allowable GFA — leaving meaningful design flexibility and signaling a comfortably proportioned, non-maximized property.All approvals secured. Buyer can break ground immediately. Plans, permits, and architectural drawings convey with sale. Located south of the highway in one of Water Mill's most desirable enclaves, minutes to Mecox Bay, ocean beaches, and village amenities.Showings by appointment. Plans package available to qualified buyers under NDA.
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Zillow last checked:
Source: Out East,MLS#: 395438
Facts & features
Interior
Bedrooms & bathrooms
Bedrooms: 8
Bathrooms: 10
Full bathrooms: 10
Features
Basement: No
Has fireplace: Yes
Interior area
Total structure area: 8,790
Total interior livable area: 8,790 sqft
Property
Parking
Parking features: GarageDetached
Has garage: Yes
Features
Has private pool: Yes
Lot
Size: 1 Acres
Details
Parcel number: 0900102000300004002
Construction
Type & style
Home type: SingleFamily
Property subtype: Single Family Residence
Condition
New Construction
New construction: Yes
Community & HOA
Location
Region: Water Mill
Financial & listing details
Price per square foot: $199/sqft
Tax assessed value: $750,600
Date on market: 5/4/2026
Lease term: Contact For Details
Estimated market value
Zestimate®
$1,660,000
Estimated sales range
$1.58M - $1.74M
Rent Zestimate®
$3,940/mo
Price history
Date
Event
Price
5/13/2026
Listed for sale
$1,749,000-12.5%$199/sqft
Source: OneKey® MLS as distributed by MLS GRID #998172Report a problem
1/8/2026
Listing removed
$1,999,999+14.4%$228/sqft
Source: OneKey® MLS as distributed by MLS GRID #902613Report a problem
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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