Skip main navigation
For sale
  • $12,495,000

    54 Cobb Isle Rd, Water Mill, NY 11976

    6beds
    7,300sqft
    Loading
    Single Family Residence
    Built in 2003
    1.3 Acres Lot
    $12,357,500 Zestimate®
    $1,712/sqft
    $-- HOA

    What's special

    Expansive terracesIntegrated soundArchitectural lightingSix bedrooms nine bathsHeated three-car garageMature specimen landscapingPersonal gym
    As you browse through a Slim Aarons coffee table book you are reminded of those moments in travel that remain with you forever like waking to the warmth of an Aegean sunrise or watching the moonlight dance across the turquoise waters of a secluded Mediterranean cove as the outside world disappears, time slows, and life feels beautifully uncomplicated. That same feeling awaits on the shores of Mecox Bay. Occupying one of Water Mill's most coveted waterfront settings on prestigious Cobb Isle, this extraordinary estate evokes the effortless elegance of a private European seaside resort while delivering one of the Hamptons' most exclusive waterfront lifestyles. Looking south across Mecox Bay toward the Atlantic Ocean beyond, every room is immersed in an ever-changing panorama of water, sky, and light. Hidden behind stately gates, the estate spans 1.3 impeccably landscaped acres with over 325 feet of direct waterfront. Designed by architect John Himmelsbach, the residence encompasses approximately 7,300 square feet of European-inspired architecture with six bedrooms, nine baths, expansive terraces, and a heated three-car garage. A dramatic soaring limestone foyer finds Venetian plaster walls and a gracefully curved staircase, establishing a tone of understated sophistication. Walls of glass dissolve the boundary between indoors and out, ensuring that the bay remains the focal point from nearly every principal room. A spectacular living room centers on a floor-to-ceiling limestone fireplace, while an intimate family room, richly paneled study, and elegant entertaining spaces flow seamlessly toward expansive terraces overlooking the water. The kitchen is equally suited to quiet mornings and lavish entertaining, featuring handcrafted cabinetry, a host of professional appliances and a walk-in pantry. Every space naturally extends outdoors, where sea breezes and spectacular sunsets become part of every meal. Occupying its own private wing, the primary suite rivals those found in Europe's finest boutique hotels. Separate sitting and sleeping chambers, each warmed by its own fireplace, open toward sweeping bay views and private terraces. A personal gym, refreshment area, multiple custom dressing closets, and an extraordinary spa bath featuring radiant heated floors, steam shower, Jacuzzi, dual vanities, and custom Italian etched marble complete this remarkable sanctuary. An adjoining room with full bath offers flexibility. Four additional ensuites bedrooms, together with a fifth functioning as a separate staff suite, provide exceptional accommodation. Outside, the estate transforms into a world-class private resort. A 20-by-40-foot heated Gunite pool finished in shimmering Murano glass tile is embraced by over 1,500 square feet of limestone terracing. Integrated into the residence, the 500 sq ft pool pavilion functions also as both elegant family room and guest retreat, complete with radiant heat, lounge, dining area, full bath, and a fully equipped secondary kitchen. Mature specimen landscaping, architectural lighting, integrated sound, and intimate garden spaces create an atmosphere equally suited for lively gatherings or peaceful solitude. The waterfront itself offers an increasingly rare lifestyle. With the potential for a private dock, owners can step directly from the property onto a boat, paddleboard, kayak, or jet ski and explore Mecox Bay before continuing to Flying Point, Scott Cameron, or Mecox Beach. Equally compelling are the property's grandfathered non-conforming zoning rights that allow setbacks, sightlines, and a relationship with the water that simply could not be replicated today. Every sunrise feels like the beginning of a long-awaited holiday, every afternoon invites life on the water, and every sunset reminds you why extraordinary places become part of who we are. There are homes that impress, and there are homes that define an era of your life. 54 Cobb Isle offers both, a feeling you've been searching for all along, as if every arrival were a page from a Slim Aarons masterpiece, and every day was worthy of its own photograph.
    10 days
    |
    685
    |
    28
    |

    Zillow last checked:

    Listed by:

    Corcoran Group,

    Gary DePersia - Associate Real Estate Broker 516-380-0538

    Source: Out East,MLS#: 396858

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 6
      • Bathrooms: 10
      • Full bathrooms: 9
      • 1/2 bathrooms: 1
      Rooms
      • Room types: Family Room, Laundry, Library, Office
      Cooling
      • Central Air
      Features
      • Basement: No
      • Has fireplace: Yes
      Interior area
      • Total structure area: 7,300
      • Total interior livable area: 7,300 sqft

      Property

      Parking
      • Parking features: GarageAttached
      • Has attached garage: Yes
      Features
      • Stories: 2
      • Has private pool: Yes
      • Pool features: Heated
      • Has view: Yes
      • View description: Water
      • Has water view: Yes
      • Water view: Water
      • Waterfront features: Waterfront
      • Frontage type: Waterfront
      Lot
      • Size: 1.3 Acres
      Details
      • Parcel number: 0900160000300011002

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Condition
      • New construction: No
      • Year built: 2003

      Community & HOA

      Location
      • Region: Water Mill

      Financial & listing details

      • Price per square foot: $1,712/sqft
      • Tax assessed value: $5,902,000
      • Date on market: 7/23/2026
      • Lease term: Contact For Details

        Estimated market value

        $12,357,500

        $11.74M - $12.98M

        $7,997/mo

        Price history

        DateEventPrice
        7/23/2026Listed for sale$12,495,000-3.8%$1,712/sqft
        Source: Out East #396858 Report a problem
        7/22/2026Listing removed$12,995,000$1,780/sqft
        Source: Out East #391900 Report a problem
        1/29/2026Price change$12,995,000-3.7%$1,780/sqft
        Source: Out East #391900 Report a problem
        11/6/2025Listed for sale$13,495,000$1,849/sqft
        Source: Out East #391900 Report a problem
        10/28/2025Listing removed$13,495,000$1,849/sqft
        Source: Out East #388385 Report a problem
        5/3/2025Listed for sale$13,495,000-3.6%$1,849/sqft
        Source: Out East #388385 Report a problem
        4/18/2025Listing removed$13,995,000$1,917/sqft
        Source: Out East #375123 Report a problem
        5/16/2024Price change$13,995,000-6.4%$1,917/sqft
        Source: Out East #375123 Report a problem
        4/22/2024Price change$14,950,000-3.5%$2,048/sqft
        Source: Out East #375123 Report a problem
        10/16/2023Price change$15,495,000-8.6%$2,123/sqft
        Source: Out East #375123 Report a problem
        7/7/2023Listed for sale$16,950,000-3.1%$2,322/sqft
        Source: Out East #375123 Report a problem
        5/17/2023Listing removed--
        Source: Out East Report a problem
        11/16/2022Price change$17,500,000-5.4%$2,397/sqft
        Source: Out East #366570 Report a problem
        6/1/2022Listed for sale$18,500,000$2,534/sqft
        Source: Out East #366570 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025-- $5,902,000
        2024-- $5,902,000
        2023-- $5,902,000
        2022-- $5,902,000
        2021-- $5,902,000
        2020-- $5,902,000
        2019-- $5,902,000 +1.4%
        2018-- $5,818,700
        2017$26,430 $5,818,700
        2016-- $5,818,700
        2015-- $5,818,700
        2014-- $5,818,700
        2013-- $5,818,700
        2012-- $5,818,700
        2011-- $5,818,700
        2010-- $5,818,700 +7.8%
        2009-- $5,398,600
        2008-- $5,398,600
        2007$23,560 +19%$5,398,600 +52%
        2005$19,799 -0.1%$3,551,808 +6556.3%
        2004$19,817 +6.1%$53,360 +1.3%
        2003$18,677 +49.3%$52,688 +46.2%
        2002$12,506 $36,044
        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: 11976

        Getting around

        2 / 100
        Car-Dependent
        28 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

        A local agent can set up tours, give advice and negotiate with sellers.

        Browse local experts

        Similar homes