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For sale
  • $14,600,000

    164 Round Hill Rd, Greenwich, CT 06831

    8beds
    17,121sqft
    : 
    $93,370/mo
    Get pre-qualified
    Residential, Single Family Residence
    Built in 1911
    4.17 Acres Lot
    $-- Zestimate®
    $853/sqft
    $-- HOA

    What's special

    White-pebble driveSculpted boxwoodsOversized swimming poolSignature european-inspired gardens
    An allée of majestic magnolia trees underplanted with sculpted boxwoods lines a white-pebble drive leading to one of Greenwich's most iconic Great Estates. Inspired by the grandeur of Newport's Gilded Age mansions and transformed through an extensive four-year renovation, this exceptional residence masterfully balances historic character with modern functionality. The result is a rare offering where architectural significance, luxurious comfort, and enchanting surroundings converge. Interiors designed by Mar Silver allow for entertaining on a grand scale or intimate family gatherings alike. Each room has been thoughtfully curated, revealing a new delight around every corner. The estate grounds, designed by renowned landscape architect, James Doyle, feature his signature European-inspired gardens, as well as a 3-bedroom guest house, and oversized swimming pool creating a private compound of extraordinary beauty and distinction. This remarkable property is located on prestigious Round Hill Road, only 10 mins to downtown Greenwich and 45 mins to Manhattan.
    12 days
    4,027
    279

    Zillow last checked:

    Listing updated:

    Listed by:

    Cate Keeney 203-536-8187,

    Sotheby's International Realty

    Source: Greenwich MLS, Inc.,MLS#: 125814MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 8
      • Bathrooms: 14
      • Full bathrooms: 11
      • 1/2 bathrooms: 3
      Heating
      • Natural Gas, Hydro-Air
      Cooling
      • Central Air
      Appliances
      • Laundry: Laundry Room
      Features
      • Entrance Foyer, Pantry, Back Stairs
      • Basement: Finished
      • Number of fireplaces: 8
      Interior area
      • Total structure area: 17,121
      • Total interior livable area: 17,121 sqft

      Property

      Parking
      • Total spaces: 6
      • Parking features: Garage
      • Garage spaces: 6
      Features
      • Patio & porch: Terrace
      • Exterior features: Balcony
      • Has private pool: Yes
      Lot
      • Size: 4.17 Acres
      • Features: Garden, Level
      Details
      • Additional structures: Guest House
      • Parcel number: 103197
      • Zoning: RA-2
      • Other equipment: Generator

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: English Manor
      • Property subtype: Residential, Single Family Residence
      Materials
      • Stone
      • Roof: Slate
      Condition
      • Year built: 1911
      • Major remodel year: 2026

      Utilities & green energy

      • Sewer: Septic Tank
      • Water: Public

      Community & HOA

      Community
      • Security: Security System
      Location
      • Region: Greenwich

      Financial & listing details

      • Price per square foot: $853/sqft
      • Tax assessed value: $13,457,920
      • Annual tax amount: $136,261
      • Date on market: 9/9/2026
      • Inclusions: Washer/Dryer, All Kitchen Applncs

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        9/9/2026Listed for sale$14,600,000$853/sqft
        Source: Greenwich MLS, Inc. #125814 Report a problem
        8/10/2026Listing removed$14,600,000$853/sqft
        Source: Greenwich MLS, Inc. #124477 Report a problem
        5/1/2026Price change$14,600,000-6.4%$853/sqft
        Source: Greenwich MLS, Inc. #124477 Report a problem
        3/17/2026Listed for sale$15,600,000+0.6%$911/sqft
        Source: Greenwich MLS, Inc. #124477 Report a problem
        4/28/2023Listing removed--
        Source: Smart MLS #170524998 Report a problem
        3/15/2023Price change$15,500,000-11.4%$905/sqft
        Source: Greenwich MLS, Inc. #116860 Report a problem
        9/20/2022Listed for sale$17,500,000+16.7%$1,022/sqft
        Source: Greenwich MLS, Inc. #116860 Report a problem
        9/6/2013Sold$15,000,000+24.4%$876/sqft
        Source: Agent Provided Report a problem
        10/1/2004Sold$12,060,000+609.4%$704/sqft
        Source: Public Record Report a problem
        9/30/1993Sold$1,700,000$99/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$132,241 +2.8%$10,983,490
        2024$128,617 +2.8%$10,983,490
        2023$125,102 +1%$10,983,490
        2022$123,894 +2.1%$10,983,490 +4.9%
        2021$121,301 $10,465,980
        2020$121,301 -0.8%$10,465,980
        2019$122,243 +2.7%$10,465,980
        2018$118,998 $10,465,980
        2017$118,998 +25.5%$10,465,980 +24.4%
        2015$94,846 +2.7%$8,415,750
        2014$92,321 $8,415,750
        Find assessor info on the county website

        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.
        See how much you could borrow to make a competitive offer.

        Climate risks

        Neighborhood: 06831

        Getting around

        0 / 100
        Car-Dependent
        20 / 100
        Somewhat Bikeable

        Nearby schools

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

        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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