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Off market
  • $10,947,800

    43 Mashomuck Dr, Sag Harbor, NY 11963

    5beds
    5,000sqft
    SingleFamily
    Built in 1970
    1.5 Acres Lot
    $10,947,800 Zestimate®
    $2,190/sqft
    $127,024 Estimated rent

    Home value

    $10,947,800

    $8.76M - $13.68M

    $127,024/mo

    Zestimate® history
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    $127,024/mo

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    Rent Zestimate®

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    $76,547/mo

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    $76,547/mo

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    What's special

    Bay-facing dining areaHeated poolCompletely private panoramic settingWaterside deckWood-paneled librarySeparate staff quartersLight-filled great room

    Sited on a rare stretch of waterfront in North Haven, where the lawn rolls straight to Sag Harbor Bay and the view is always in motion. Wednesday night sailboat races pass just offshore, and throughout the day boats and megayachts move quietly in and out of the harbor always something to watch.The completely private, panoramic setting is what draws you in, but the house makes it easy to stay. More than 5,000 square feet, all on one level, with five bedrooms and multiple living spaces that open naturally to the outdoors. A light-filled great room, bay-facing dining area, and a wood-paneled library offer places to gather or step away, depending on the moment. The primary suite is set along the water, with a quieter, more secluded feel. With ample room for guests and separate staff quarters, the layout is both generous and well-considered. A den, large chef's kitchen, and gym round out the interiors.Outside, a heated pool and waterside deck set the rhythm of the day mornings by the water, afternoons by the pool, and evenings that stretch a little longer than planned.

    This property is not currently displayed as for sale or rent on Zillow. This may be different from what's on other websites or public sources.

    Zillow last checked:

    Listing updated:

    Source: Zillow Rentals,MLS#: 80968

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 5
    • Bathrooms: 6
    • Full bathrooms: 6
    Rooms
    • Room types: Family Room, Laundry Room, Library
    Heating
    • Central, Fireplace
    Cooling
    • Air Conditioner, Central Air
    Features
    • Has basement: Yes
    • Has fireplace: Yes
    Interior area
    • Total interior livable area: 5,000 sqft

    Property

    Parking
    • Parking features: Attached, Garage, Other
    • Has attached garage: Yes
    • Details: Contact manager
    Features
    • Stories: 1
    • Exterior features: Tennis Court(s)
    • Has private pool: Yes
    • Pool features: Pool
    • Has view: Yes
    • View description: Water View
    • Has water view: Yes
    • Water view: Waterfront
    Lot
    • Size: 1.5 Acres
    • Features: Waterfront
    Details
    • Additional structures: Garage(s)
    • Parcel number: 0901003000200060000

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Ranch Rambler
    • Property subtype: SingleFamily
    Condition
    • Year built: 1970

    Community & HOA

    Community
    • Features: Pool, Tennis Court(s)
    HOA
    • Amenities included: Laundry, Pool, Tennis Court(s)
    Location
    • Region: Sag Harbor

    Financial & listing details

    • Price per square foot: $2,190/sqft
    • Tax assessed value: $7,292,700
    • Date on market: 10/13/2025
    • Lease term: Contact For Details

    Price history

    DateEventPrice
    8/1/2026Listing removed$100,000$20/sqft
    Source: Zillow Rentals #80968 Report a problem
    5/26/2026Price change$100,000-14.3%$20/sqft
    Source: Zillow Rentals Report a problem
    10/13/2025Listed for rent$116,666-66.7%$23/sqft
    Source: Zillow Rentals Report a problem
    10/12/2025Listing removed$350,000$70/sqft
    Source: Zillow Rentals Report a problem
    9/22/2025Listed for rent$350,000+500%$70/sqft
    Source: Zillow Rentals Report a problem
    7/1/2023Listing removed--
    Source: Zillow Rentals Report a problem
    11/2/2022Listed for rent$58,333+45.8%$12/sqft
    Source: Out East #66815 Report a problem
    5/14/2020Listing removed$40,000$8/sqft
    Source: Southampton #66815 Report a problem
    3/24/2020Price change$40,000-40%$8/sqft
    Source: Southampton #66815 Report a problem
    3/21/2020Listed for rent$66,666+33.3%$13/sqft
    Source: Southampton #66815 Report a problem
    9/25/2019Listing removed$50,000$10/sqft
    Source: Southampton #66815 Report a problem
    4/23/2019Price change$50,000-66.7%$10/sqft
    Source: Southampton Report a problem
    9/2/2018Listed for rent$150,000+11.1%$30/sqft
    Source: Douglas Elliman Real Estate Southampton Office #66815 Report a problem
    10/9/2017Listing removed$135,000$27/sqft
    Source: East Hampton Office #97789 Report a problem
    9/14/2017Listed for rent$135,000+8%$27/sqft
    Source: East Hampton Office #97789 Report a problem
    7/26/2015Listing removed$125,000$25/sqft
    Source: Nest Seekers International Report a problem
    6/6/2015Price change$125,000+218.1%$25/sqft
    Source: Nest Seekers International Report a problem
    5/18/2015Listed for rent$39,290$8/sqft
    Source: Nest Seekers International Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025-- $7,292,700
    2024-- $7,292,700
    2023-- $7,292,700
    2022-- $7,292,700 +21.2%
    2021-- $6,017,900
    2020-- $6,017,900
    2019-- $6,017,900 +56.2%
    2018-- $3,853,400
    2017$27,346 $3,853,400
    2016-- $3,853,400
    2015-- $3,853,400
    2014-- $3,853,400
    2013-- $3,853,400
    2012-- $3,853,400
    2011-- $3,853,400
    2010-- $3,853,400
    2009-- $3,853,400
    2008-- $3,853,400 +9.1%
    2007$19,967 +2.3%$3,533,500 +31.9%
    2005$19,518 +34.9%$2,678,300 +8196.1%
    2004$14,471 +8.1%$32,284
    2003$13,388 +9.9%$32,284
    2002$12,186 +6.6%$32,284
    2001$11,435 +7.7%$32,284
    2000$10,613 $32,284
    Find assessor info on the county website

    Neighborhood: North Haven

    Nearby schools

    GreatSchools rating
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    Estimated market value
    $10,947,800
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    Estimated market value
    $10,947,800