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Off market
  • $4,160,700

    850 Old Sag Harbor Rd, Water Mill, NY 11976

    7beds
    12,403sqft
    Single Family Residence
    Built in ----
    4.6 Acres Lot
    $4,160,700 Zestimate®
    $335/sqft
    $8,223 Estimated rent

    Home value

    $4,160,700

    $3.33M - $5.24M

    $8,223/mo

    Zestimate® history
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    What's special

    **Listing Price on Finished Project = $12,500,000 **Listing Price on property "As-Is" with plans = $4,750,000 Please inquire with JB AndreassiDiscover an exclusive opportunity to embrace luxury at the Modern Tree House, a newly designed Compound located in a very private area of Water Mill. With 5 plus acres of land, there are many possibilities for visionaries looking to own a private estate in the Hamptons. Designed and built by JWWG , a Hamptons design and build company that underscores the meaning of precision and art in their builds. The planned main house features 7 bedrooms, 9 bathrooms, and approximately 12,500 sq ft of refined living space, perfect for entertaining and serene retreats alike. Complemented by a charming pool house with 2 bedrooms, 3 bathrooms, and 1,800 sq ft of stylish comfort, this estate ensures ample space for guests or extended family. Dive into relaxation with your own pristine infinity edge pool and spa, ideal for sun-soaked afternoons and elegant gatherings. This exquisite property offers a blend of sophistication and style that you simply cannot afford to miss. Planned completion for Summer 2025 with the chance to add a pickle ball court if that is desired. This is your chance to experience the epitome of luxurious living on the border of Bridgehampton and Water Mill Farm country.

    This property is off market, which means it's not currently listed for sale or rent on Zillow. This may be different from what's available on other websites or public sources.

    Zillow last checked: 7 hours ago

    Source: Out East,MLS#: 384163

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 7
    • Bathrooms: 9
    • Full bathrooms: 7
    • 1/2 bathrooms: 2
    Features
    • Has basement: Yes
    • Has fireplace: Yes
    Interior area
    • Total structure area: 12,403
    • Total interior livable area: 12,403 sqft

    Property

    Parking
    • Parking features: GarageAttached
    • Has attached garage: Yes
    Features
    • Has private pool: Yes
    • Pool features: Heated
    • Has spa: Yes
    • Spa features: Heated
    Lot
    • Size: 4.60 Acres
    Details
    • Parcel number: 0900036000100020010

    Construction

    Type & style
    • Home type: SingleFamily
    • Property subtype: Single Family Residence
    Condition
    • New construction: No

    Community & neighborhood

    Community
    • Community features: Room for a Tennis Court
    Location
    • Region: Water Mill

    Price history

    DateEventPrice
    6/28/2025Listing removed$3,994,000$322/sqft
    Source: Out East #384163 Report a problem
    10/14/2024Price change$3,994,000-15.9%$322/sqft
    Source: Out East #384163 Report a problem
    10/3/2024Listed for sale$4,750,000+102.6%$383/sqft
    Source: Out East #384163 Report a problem
    4/22/2023Listing removed--
    Source: Out East Report a problem
    4/1/2023Price change$2,345,000-6%$189/sqft
    Source: Out East #362980 Report a problem
    3/6/2023Listed for sale$2,495,000$201/sqft
    Source: Out East #362980 Report a problem
    1/21/2023Listing removed--
    Source: Out East Report a problem
    9/19/2022Price change$2,495,000-5.8%$201/sqft
    Source: Out East #362980 Report a problem
    9/4/2022Price change$2,650,000-3.6%$214/sqft
    Source: Out East #362980 Report a problem
    8/18/2022Price change$2,750,000-8.2%$222/sqft
    Source: Out East #362980 Report a problem
    7/27/2022Price change$2,995,000-14.3%$241/sqft
    Source: Out East #362980 Report a problem
    6/29/2022Listed for sale$3,495,000-30%$282/sqft
    Source: Out East #362980 Report a problem
    5/18/2022Listing removed--
    Source: Out East Report a problem
    2/17/2022Price change$4,995,000-23.1%$403/sqft
    Source: Out East #362980 Report a problem
    1/19/2022Listed for sale$6,495,000+195.2%$524/sqft
    Source: Out East #362980 Report a problem
    12/21/2021Price change$100,000+100%$8/sqft
    Source: Out East #357247 Report a problem
    11/30/2021Listed for rent$50,000+57.9%$4/sqft
    Source: Out East #357247 Report a problem
    9/15/2021Sold$2,200,000+0.2%$177/sqft
    Source: Public Record Report a problem
    2/17/2021Pending sale$2,195,000$177/sqft
    Source: Corcoran Group #248652 Report a problem
    11/5/2020Price change$2,195,000-4.4%$177/sqft
    Source: Corcoran Group #248652 Report a problem
    6/25/2020Listed for sale$2,295,000$185/sqft
    Source: Corcoran Group #248652 Report a problem
    1/15/2020Listing removed$31,666$3/sqft
    Source: Bridgehampton West #348486 Report a problem
    11/6/2019Listed for rent$31,666$3/sqft
    Source: Bridgehampton West #348486 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2024-- $1,576,400
    2023-- $1,576,400
    2022-- $1,576,400 +0.9%
    2021-- $1,562,700
    2020-- $1,562,700
    2019-- $1,562,700 +1.1%
    2018-- $1,545,400
    2017$7,705 $1,545,400 -22%
    2016-- $1,981,900
    2015-- $1,981,900
    2014-- $1,981,900 +9.2%
    2013-- $1,815,400
    2012-- $1,815,400
    2011-- $1,815,400 +19.5%
    2007$4,436 -35.4%$1,519,700 +0%
    2005$6,865 +123.1%$1,519,019 +14999.6%
    2004$3,077 +1.8%$10,060
    2003$3,021 +5.1%$10,060
    2002$2,876 $10,060

    Find assessor info on the county website

    Neighborhood: 11976

    Nearby schools

    GreatSchools rating
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    Estimated market value
    $4,160,700
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    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $4,160,700