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New construction
  • $18,999,000

    528 Round Hill Rd, Greenwich, CT 06831

    6beds
    17,197sqft
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    Residential, Single Family Residence
    Built in 2026
    4 Acres Lot
    $17,998,300 Zestimate®
    $1,105/sqft
    $-- HOA

    What's special

    Resort-style poolFirst floor guest suiteStately libraryVaulted ceilingsState-of-the-art golf simulatorSerene octagonal meditation roomBoutique level his-and-hers closets
    Stunning New Construction. A Grand Estate of Architectural Distinction. This Incredible new build was Conceived and will be Constructed without Compromise. A build of enduring significance beautifully set on 4 acres. Spanning 17,197 square feet, this residence achieves extraordinary vertical volume with 11-foot ceilings on the main level and a breathtaking two-and-a-half-story family room framed by floor-to-ceiling glass. The main level features a chef's kitchen with an oversized 14-foot island, a glass-enclosed wine room, a stately library and a first floor guest suite. Upstairs, the private primary wing offers a dramatic atrium, vaulted ceilings, and boutique level his-and-hers closets. The walk-out lower level with 11 foot ceilings serves as a private resort-level retreat, featuring a glass-enclosed fitness center, a serene octagonal meditation room, and a state-of-the-art golf simulator. Outside, a 3,200-square-foot multi-level masonry terrace leads to a resort-style pool and a fully appointed pool house with a wood-burning fireplace. This beautiful home features a black slate roof, Marvin high-performance windows, and intelligent luxury systems including a Lutron smart lighting system, a 38KW standby generator, and electric vehicle charging. This masterpiece was designed to stand apart in one of Greenwich's most prestigious settings. Completion 1/10/2027
    136 days
    |
    1,127
    |
    50
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Kate Bates 203-554-1143,

    Compass Connecticut, LLC

    Source: Greenwich MLS, Inc.,MLS#: 124218MLS Logo

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 6
      • Bathrooms: 12
      • Full bathrooms: 10
      • 1/2 bathrooms: 2
      Heating
      • Forced Air, Propane
      Cooling
      • Central Air
      Appliances
      • Laundry: Laundry Room
      Features
      • Kitchen Island, Eat-in Kitchen, Bookcases, Built-in Features, Pantry, Back Stairs
      • Basement: Finished
      • Number of fireplaces: 4
      Interior area
      • Total structure area: 17,197
      • Total interior livable area: 17,197 sqft

      Property

      Parking
      • Total spaces: 4
      • Parking features: Garage Door Opener
      • Garage spaces: 4
      Features
      • Exterior features: Gas Grill
      • Has private pool: Yes
      Lot
      • Size: 4 Acres
      • Features: Level
      Details
      • Additional structures: Pool House
      • Parcel number: 101363
      • Zoning: RA-4
      • Other equipment: Generator

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Colonial
      • Property subtype: Residential, Single Family Residence
      Materials
      • Cedar, Shingle Siding
      • Roof: Slate
      Condition
      • Under Construction
      • New construction: Yes
      • Year built: 2026

      Utilities & green energy

      • Sewer: Septic Tank
      • Water: Well
      • Utilities for property: Propane

      Community & HOA

      Community
      • Security: Security System, Smoke Detector(s)
      Location
      • Region: Greenwich

      Financial & listing details

      • Price per square foot: $1,105/sqft
      • Date on market: 1/23/2026
      • Inclusions: Washer/Dryer, Call LB, All Kitchen Applncs, A/V Equip
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        Estimated market value

        $17,998,300

        $17.10M - $18.90M

        Not available

        Price history

        DateEventPrice
        1/23/2026Listed for sale$18,999,000+442.8%$1,105/sqft
        Source: Greenwich MLS, Inc. #124218 Report a problem
        7/9/2025Sold$3,500,000$204/sqft
        Source: Greenwich MLS, Inc. #121432 Report a problem
        5/20/2025Pending sale$3,500,000$204/sqft
        Source: Greenwich MLS, Inc. #121432 Report a problem
        5/9/2025Listed for sale$3,500,000$204/sqft
        Source: Greenwich MLS, Inc. #121432 Report a problem
        10/24/2024Listing removed$3,500,000$204/sqft
        Source: Greenwich MLS, Inc. #121432 Report a problem
        9/15/2024Listed for sale$3,500,000$204/sqft
        Source: Greenwich MLS, Inc. #121432 Report a problem

        Public tax history

        Tax history is unavailable.

        Monthly payment

        Est. payment

          Payment breakdown

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          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.
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          Climate risks

          Neighborhood: 06831

          Getting around

          0 / 100
          Car-Dependent
          1 / 100
          Somewhat Bikeable

          Nearby schools

          GreatSchools rating
          Schools provided by the listing agent
          • Elementary: Parkway
          • Middle: Western

          Source: Greenwich MLS, Inc.. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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