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For sale
    • $15,600,000

    164 Round Hill Rd, Greenwich, CT 06831

    8beds
    17,121sqft
    : 
    Residential, Single Family Residence
    Built in 1911
    4.17 Acres Lot
    $20,495,100 Zestimate®
    $911/sqft
    $-- HOA

    What's special

    Unrivaled in its beauty, design, build and landscape, this unparalleled Mid-Country estate showcases an extensive 4 year restoration and renovation by leading industry visionaries Sam Mitchell and Nordic Builders. This stunning eight-bedroom English Manor sits at the end of a long, gated driveway on Round Hill Road with spectacular European-inspired gardens, sparkling pool and three bed/three bath guest house on 4.17 private acres. The interior was designed by Mar Silver and spans over 17,000 square feet featuring 2026 painting and carpeting refresh, striking architectual details, vaulted beamed ceilings and luxurious finishes. Grounds designed by renowned landscape architect James Doyle. Whether entertaining on a grand scale or simply enjoying a country weekend at home, this one-of-a-kind property offers something for everyone.
    5 days
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    3,512
    |
    157
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    Zillow last checked: 7 hours ago

    Listing updated: March 17, 2026 at 09:58am

    Listed by:

    Julie Church 203-561-9373,

    Houlihan Lawrence

    Source: Greenwich MLS, Inc.,MLS#: 124477MLS Logo

    Tour with a local agent

      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
      • Eat-in Kitchen, Pantry, Back Stairs
      • Basement: Finished
      • Number of fireplaces: 8
      Interior area
      • Total structure area: 17,121
      • Total interior livable area: 17,121 sqft
      Video & virtual tour

      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: Meadow, Parklike
      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: $911/sqft
      • Tax assessed value: $10,983,490
      • Annual tax amount: $132,241
      • Date on market: 3/17/2026
      • Inclusions: Washer/Dryer, All Kitchen Applncs
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        Estimated market value

        $20,495,100

        $16.40M - $26.03M

        $91,932/mo

        Price history

        Price history
        DateEventPrice
        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

        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

        BuyAbility℠ payment

        Est. payment
        $102,418/mo
        Principal & interest
        $80448
        Property taxes
        $21970
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          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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