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New construction
  • $7,500,000

    148 Middle Line Hwy, Southampton, NY 11968

    8beds
    9,600sqft
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    Single Family Residence
    Built in 2025
    2 Acres Lot
    $7,101,500 Zestimate®
    $781/sqft
    $-- HOA

    What's special

    Magnificent gunite in-ground poolPrivate oasisExpansive deckTwo-car attached garageLight-filled interiorsOpen-concept floor planSoaring ceilings
    Commanding 2 sprawling acres in the heart of Southampton, this masterfully designed new construction estate represents the pinnacle of Hamptons luxury. Spanning an impressive 9,600 +/- SF across 3 finished levels, the residence offers a rare combination of grand architectural scale and intimate, sophisticated comfort. With 8 spacious bedrooms and 10 bathrooms (8 full, 2 half), this home is perfectly engineered for both large-scale entertaining and quiet, private retreats. The light-filled interiors are defined by an open-concept floor plan featuring soaring ceilings, rich hardwood flooring, and a grand entry foyer that sets a tone of elegance. At the heart of the home, a gourmet chef's kitchen, complete with professional-grade stainless steel appliances, flows seamlessly into the formal dining and living areas. For those requiring a quiet workspace or a casual place to gather, the layout includes a dedicated den/office and a sun-drenched family room, ensuring there is a space for every mood and occasion. The exterior of the property is a private oasis designed for the ultimate summer lifestyle. An expansive deck overlooks the lush, manicured grounds and a magnificent gunite in-ground pool, offering the perfect setting for alfresco dining and poolside lounging. Complete with a two-car attached garage and modern amenities including central air and forced-air heating, this estate provides every convenience expected of a world-class Southampton residence. Ideally located and impeccably finished, this is a rare opportunity to own a significant piece of the East End.
    176 days
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    487
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    38
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    Zillow last checked:

    Listed by:

    Saunders & Associates 631-458-4879,

    Vincent Horcasitas - Associate Real Estate Broker 516-768-7330

    Source: Out East,MLS#: 392778

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 8
      • Bathrooms: 10
      • Full bathrooms: 8
      • 1/2 bathrooms: 2
      Rooms
      • Room types: Family Room, Laundry, Office
      Cooling
      • Central Air
      Features
      • Basement: Yes
      • Has fireplace: Yes
      Interior area
      • Total structure area: 9,600
      • Total interior livable area: 9,600 sqft

      Property

      Parking
      • Parking features: GarageAttached
      • Has attached garage: Yes
      Features
      • Stories: 3
      • Has private pool: Yes
      • Pool features: Heated
      • Has spa: Yes
      • Spa features: Heated
      Lot
      • Size: 2 Acres
      Details
      • Parcel number: 0900034000200026003

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Condition
      • New Construction
      • New construction: Yes
      • Year built: 2025

      Community & HOA

      Location
      • Region: Southampton

      Financial & listing details

      • Price per square foot: $781/sqft
      • Tax assessed value: $1,215,500
      • Date on market: 1/16/2026
      • Lease term: Contact For Details

        Estimated market value

        $7,101,500

        $6.75M - $7.46M

        $7,414/mo

        Price history

        DateEventPrice
        1/16/2026Listed for sale$7,500,000$781/sqft
        Source: Out East #392778 Report a problem
        1/10/2026Listing removed$7,500,000$781/sqft
        Source: Out East #387921 Report a problem
        11/20/2025Price change$7,500,000-6.1%$781/sqft
        Source: Out East #387921 Report a problem
        10/4/2025Price change$7,990,000-0.1%$832/sqft
        Source: Out East #387921 Report a problem
        6/21/2025Price change$7,994,0000%$833/sqft
        Source: Out East #387921 Report a problem
        5/19/2025Price change$7,995,000-11.1%$833/sqft
        Source: Out East #387921 Report a problem
        4/13/2025Listed for sale$8,995,000+1099.3%$937/sqft
        Source: Out East #387921 Report a problem
        6/13/2024Sold$750,000-60.5%$78/sqft
        Source: Public Record Report a problem
        7/1/2023Listing removed--
        Source: OneKey® MLS as distributed by MLS GRID #3475342 Report a problem
        5/3/2023Listed for sale$1,900,000-73.2%$198/sqft
        Source: OneKey® MLS as distributed by MLS GRID #3475342 Report a problem
        2/4/2023Listing removed--
        Source: OneKey® MLS as distributed by MLS GRID #3375968 Report a problem
        2/14/2022Listed for sale$7,100,000+425.9%$740/sqft
        Source: OneKey® MLS as distributed by MLS GRID #3375968 Report a problem
        4/26/2021Sold$1,350,000-9.7%$141/sqft
        Source: Public Record Report a problem
        6/11/2020Listed for sale$1,495,000$156/sqft
        Source: SEASHELL REAL ESTATE #10897962 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025-- $1,215,500 +48.8%
        2024-- $817,000
        2023-- $817,000
        2022-- $817,000
        2021-- $817,000
        2020-- $817,000
        2019-- $817,000 +11.1%
        2018-- $735,300
        2017$3,275 $735,300 +5.9%
        2016-- $694,500
        2015-- $694,500
        2014-- $694,500 -0.1%
        2013-- $695,400
        2012-- $695,400
        2011-- $695,400 -7.6%
        2007$3,356 +50%$752,700 +88.2%
        2005$2,237 +49.4%$399,900 +9998.5%
        2004$1,497 +5.3%$3,960
        2003$1,422 +1.7%$3,960
        2002$1,397 +6.3%$3,960
        2001$1,314 +2%$3,960
        2000$1,289 $3,960
        Find assessor info on the county website

        Monthly payment

        Estimated monthly payment$1,822
        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.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: 11968

        Getting around

        0 / 100
        Car-Dependent
        14 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

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