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Off market
  • Zillow Home logoZestimate®
    $5,907,800

    12 Union St, Sag Harbor, NY 11963

    3beds
    2,919sqft
    Single Family Residence
    Built in 1790
    0.75 Acres Lot
    $5,907,800 Zestimate®
    $2,024/sqft
    $-- Estimated rent

    Home value

    $5,907,800

    $5.61M - $6.20M

    Not available

    Zestimate® history
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    What's special

    South-facing lightPerimeter evergreensMature landscaping

    A rare opportunity to own an historic house with land that runs between Union and Jefferson Streets allowing for a south-facing light, room for a large garden and swimming pool is listed for sale. Included are permitted plans plans for a substantial addition on one of the largest residential parcels within this location of Sag Harbor Village. A three-quarter (.75 acre) site with mature landscaping and perimeter evergreens all makes for a securing a rare jewel in this convenient and central location and moments from the best of what Sag Harbor has to offer for one of the best lifestyle experiences on the East End.

    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:

    Source: Out East,MLS#: 390593

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 3
    • Bathrooms: 4
    • Full bathrooms: 4
    Cooling
    • Central Air
    Features
    • Basement: Yes
    • Has fireplace: Yes
    Interior area
    • Total structure area: 2,919
    • Total interior livable area: 2,919 sqft

    Property

    Parking
    • Parking features: None
    Features
    • Stories: 3
    • Has private pool: Yes
    • Pool features: Heated
    • Has spa: Yes
    • Spa features: Heated
    Lot
    • Size: 0.75 Acres
    Details
    • Parcel number: 0903003000300068000

    Construction

    Type & style
    • Home type: SingleFamily
    • Property subtype: Single Family Residence
    Condition
    • New construction: No
    • Year built: 1790

    Community & HOA

    Location
    • Region: Sag Harbor

    Financial & listing details

    • Price per square foot: $2,024/sqft
    • Tax assessed value: $1,804,500
    • Date on market: 8/16/2025
    • Lease term: Contact For Details

    Price history

    DateEventPrice
    9/25/2026Listing removed$6,500,000$2,227/sqft
    Source: Out East #390593 Report a problem
    8/25/2026Pending sale$6,500,000$2,227/sqft
    Source: Out East #390593 Report a problem
    8/25/2026Listing removed$6,500,000$2,227/sqft
    Source: Out East #390593 Report a problem
    7/7/2026Pending sale$6,500,000$2,227/sqft
    Source: Out East #390593 Report a problem
    5/19/2026Listing removed$6,500,000$2,227/sqft
    Source: Out East #390593 Report a problem
    1/6/2026Price change$6,500,000-11%$2,227/sqft
    Source: Out East #390593 Report a problem
    12/12/2025Listed for sale$7,300,000$2,501/sqft
    Source: Out East #390593 Report a problem
    12/3/2025Listing removed$7,300,000$2,501/sqft
    Source: Out East #390593 Report a problem
    8/16/2025Listed for sale$7,300,000$2,501/sqft
    Source: Out East #390593 Report a problem
    2/15/2023Sold$7,300,000-8.7%$2,501/sqft
    Source: Public Record Report a problem
    9/17/2022Pending sale$7,995,000$2,739/sqft
    Source: Out East #367602 Report a problem
    8/22/2022Price change$7,995,000-8.6%$2,739/sqft
    Source: Out East #367602 Report a problem
    7/14/2022Listed for sale$8,750,000+16.7%$2,998/sqft
    Source: Out East #367602 Report a problem
    10/8/2021Listing removed--
    Source: Out East Report a problem
    8/10/2021Price change$10,000-90%$3/sqft
    Source: Out East #359300 Report a problem
    8/7/2021Listed for rent$100,000+1150%$34/sqft
    Source: Out East #359300 Report a problem
    8/7/2021Listing removed--
    Source: Douglas Elliman Report a problem
    6/7/2021Listed for sale$7,500,000$2,569/sqft
    Source: Douglas Elliman #358851 Report a problem
    1/8/2021Listing removed--
    Source: Out East Report a problem
    1/4/2021Price change$8,000-20%$3/sqft
    Source: Out East #354293 Report a problem
    9/20/2020Listed for rent$10,000-87.5%$3/sqft
    Source: Southampton #354293 Report a problem
    6/28/2019Listing removed$80,000$27/sqft
    Source: Bridgehampton Report a problem
    6/26/2019Listed for rent$80,000$27/sqft
    Source: Bridgehampton Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025-- $1,804,500
    2024-- $1,804,500
    2023-- $1,804,500
    2022-- $1,804,500 +3%
    2021-- $1,751,600
    2020-- $1,751,600
    2019-- $1,751,600 +20.9%
    2018-- $1,449,000
    2017$8,642 $1,449,000
    2016-- $1,449,000
    2015-- $1,449,000
    2014-- $1,449,000
    2013-- $1,449,000
    2012-- $1,449,000
    2011-- $1,449,000
    2007$6,988 -16.9%$1,449,000 +8.8%
    2005$8,410 +50.2%$1,331,198 +9022.8%
    2004$5,601 +8.7%$14,592
    2003$5,155 +10.6%$14,592
    2002$4,662 +5.5%$14,592
    2001$4,419 +6.6%$14,592
    2000$4,144 $14,592
    Find assessor info on the county website

    Neighborhood: 11963

    Nearby schools

    GreatSchools rating
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    Estimated market value
    $5,907,800
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    Estimated market value
    $5,907,800