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164 Round Hill RoadGreenwich, CT 06831

For Sale

$14,600,000

Smart Buyer Rebate $146,000

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.

Listed by Cate Keeney

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License #RES.0755441

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Sotheby's International Realty

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203-536-8187

Last updated September 15, 2026

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Source: FlexMLS #125814

Listing Facts

  • TypeSingle-family
  • NeighborhoodMid Country West
  • Bedrooms8
  • Bathrooms12.5
  • Days on Prevu6
  • Taxes$136,261.4/year
  • Size17,121 sqft
  • Price per sqft$853

Amenities

  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

09/09/2026
Listed by Sotheby's International Realty
$14,600,000
  1. 09/09/2026$14,600,000
    Listed by Sotheby's International Realty

Property Details for 164 Round Hill Road

Exterior

Construction

  • Roof: Slate
  • Year Built: 1911
  • Architectural Style: English Manor
  • Construction Materials: Stone
  • Exterior Features: Balcony

Features

  • Other Structures: Guest House
  • Patio And Porch Features: Terrace
  • Pool Private: Yes

Measurements

  • Building Area Total: 17,121
  • Lot Features: Formal Gardens, Level
  • Lot Size Acres: 4.17
  • Lot Size Area: 4
  • Lot Size Square Feet: 181,645
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 10-3197
  • Tax Annual Amount: $136,261.40
  • Tax Assessed Value: $13,457,920.00

Interior

Features

  • Fireplace: Yes
  • Fireplaces Total: 8
  • Interior Features: Entrance Foyer, Pantry, Back Stairs

Rooms

  • Basement: Finished
  • Bathrooms Full: 11
  • Bathrooms Half: 3
  • Bathrooms Total Integer: 14
  • Bedrooms Total: 8

Other

General

  • Exclusions: Other Chandelier, Call LB

Location

  • City Region: South Parkway

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 6
  • Parking Features: Detached, Attached

Schools

Elementary School

  • Elementary School: Parkway

Middle or Junior School

  • Middle Or Junior School: Central

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Natural Gas, Hydro-Air
  • Has Heating: Yes
  • Laundry Features: Laundry Room
  • Other Equipment: Generator
  • Sewer: Septic Tank
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 8 bedrooms and 12.5 bathrooms in this single-family home at 164 Round Hill Road.

What schools are nearby to 164 Round Hill Road?

Nearby schools include the Parkway Elementary School and Central Middle School.

Does this single-family home have parking?

Yes, there are 6 parking spaces available for 164 Round Hill Road.

What are the annual taxes for 164 Round Hill Road?

Annual taxes for this single-family home are estimated at $136,261.

How does 164 Round Hill Road compare to other single-family homes in Mid Country West?

This single-family home is listed 51% above the average price for single-family homes in Mid Country West and has been on the market for 62 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 17,121 sqft.

164 Round Hill Road is a 8-bedroom, 12.5-bath single-family home for sale in Greenwich CT 06831. Listed on Prevu for 6 days at $14,600,000. This residence features 17,121 square feet of living space, located in Mid Country West. The median listing price for single-family homes in this area is $8,247,500. Nearby schools include Parkway Elementary School and Central Middle School. Property amenities include private outdoor space, air conditioning, parking, and washer/dryer. Browse more single-family home listings in Fairfield County.

Based on information from Greenwich Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.