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New construction
  • $18,999,000

    528 Round Hill Rd, Greenwich, CT 06831

    6beds
    17,197sqft
    : 
    Residential, Single Family Residence
    Built in 2026
    4 Acres Lot
    $18,163,700 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
    23 days
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    6,021
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    189
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    Zillow last checked: 8 hours ago

    Listing updated: February 13, 2026 at 11:06am

    Listed by:

    Kate Bates 203-554-1143,

    Compass Connecticut, LLC

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

    Tour with a local agent

    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
    Get pre-qualifiedBe ready to make an offer.
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    Estimated market value

    $18,163,700

    $17.26M - $19.07M

    Not available

    Price history

    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

    Public tax history

    Public tax history
    Tax history is unavailable.

    BuyAbility℠ payment

    Est. payment
    $107,079/mo
    Principal & interest
    $73672
    Property taxes
    $26757
    Home insurance
    $6650

      Climate risks

      Neighborhood: 06831

      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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