This stunning Round Hill estate in Greenwich, Connecticut is set in a private, knoll-top setting that ensures tranquility and picturesque views. The exquisite property spans four glorious acres and features six spacious bedrooms and four and a half baths, providing ample room for family and guests. Enjoy beautiful east and west exposures that fill the home with natural light. The layout is perfect for entertaining, with large living areas flowing seamlessly into the outdoors. French doors open to a lovely level yard, complete with an inviting pool and historic barn, making it an ideal space for gatherings and leisure. Move in as-is or take advantage of the abundant potential for expansion. Don't miss the chance to make this exceptional estate your own!
For sale
$5,995,000
508 Round Hill Rd, Greenwich, CT 06831
6beds
4,629sqft
Residential, Single Family Residence
Built in 1952
4.01 Acres Lot
$5,822,500 Zestimate®
$1,295/sqft
$-- HOA
What's special
Historic barnPicturesque viewsPrivate knoll-top settingFour glorious acresFrench doorsLovely level yardSix spacious bedrooms
- 5 days
- 1,957
- 182
Zillow last checked:
Listing updated:
Listed by:
Stephen Archino 203-964-7445,
Sotheby's International Realty
Source: Greenwich MLS, Inc.,MLS#: 125864
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
Heating
- Hot Water, Oil
Cooling
- Central Air
Features
- Kitchen Island, Entrance Foyer
- Basement: Partial
- Number of fireplaces: 2
Interior area
- Total structure area: 4,629
- Total interior livable area: 4,629 sqft
Property
Parking
- Total spaces: 4
- Parking features: Garage
- Garage spaces: 4
Features
- Patio & porch: Terrace
- Has private pool: Yes
Lot
- Size: 4.01 Acres
- Features: Meadow, Parklike
Details
- Additional structures: Barn(s)
- Parcel number: 102082
- Zoning: RA-4
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Residential, Single Family Residence
Materials
- Stone
- Roof: Wood
Condition
- Year built: 1952
- Major remodel year: 2004
Utilities & green energy
- Sewer: Septic Tank
- Water: Well
- Utilities for property: Propane
Community & HOA
Location
- Region: Greenwich
Financial & listing details
- Price per square foot: $1,295/sqft
- Tax assessed value: $2,129,400
- Annual tax amount: $25,638
- Date on market: 9/14/2026
- Inclusions: Washer/Dryer, All Kitchen Applncs
Estimated market value
$5,822,500
$5.53M - $6.11M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 9/14/2026 | Listed for sale | $5,995,000-6.3%$1,295/sqft |
Source:  Greenwich MLS, Inc. #125864 Report a problem | ||
| 2/15/2026 | Listing removed | $35,000$8/sqft |
Source: Zillow Rentals Report a problem | ||
| 2/7/2026 | Listed for rent | $35,000$8/sqft |
Source: Zillow Rentals Report a problem | ||
| 12/4/2025 | Listing removed | $6,395,000$1,382/sqft |
Source: Greenwich MLS, Inc. #123599 Report a problem | ||
| 9/16/2025 | Listed for sale | $6,395,000+6.7%$1,382/sqft |
Source: Greenwich MLS, Inc. #123599 Report a problem | ||
| 3/28/2022 | Listing removed | -- |
Source: Owner Report a problem | ||
| 3/24/2022 | Listed for sale | $5,995,000+99.8%$1,295/sqft |
Source: Owner Report a problem | ||
| 5/11/2021 | Listing removed | -- |
Source: Greenwich MLS, Inc. Report a problem | ||
| 3/12/2021 | Listed for rent | $35,000+16.7%$8/sqft |
Source: Greenwich MLS, Inc. #112420 Report a problem | ||
| 6/27/2018 | Listing removed | $30,000$6/sqft |
Source: Sotheby's International Realty - Greenwich Brokerage #102582 Report a problem | ||
| 4/4/2018 | Listed for rent | $30,000+11.1%$6/sqft |
Source: Sotheby's International Realty - Greenwich Brokerage #102582 Report a problem | ||
| 5/16/2017 | Listing removed | $27,000$6/sqft |
Source: Greenwich Office - Mason Street #99176731 Report a problem | ||
| 4/5/2017 | Listed for rent | $27,000+38.5%$6/sqft |
Source: Greenwich Office - Mason Street #99176731 Report a problem | ||
| 10/30/2016 | Listing removed | $19,500-18.8%$4/sqft |
Source: Halstead Property Report a problem | ||
| 4/21/2016 | Listing removed | $24,000$5/sqft |
Source: Greenwich Office - Mason Street #99129427 Report a problem | ||
| 1/5/2016 | Listed for rent | $24,000+23.1%$5/sqft |
Source: Halstead Property #99129427 Report a problem | ||
| 10/29/2015 | Listing removed | $19,500$4/sqft |
Source: Greenwich Office - Mason Street #99115154 Report a problem | ||
| 8/4/2015 | Listed for rent | $19,500-18.8%$4/sqft |
Source: Halstead Property #99115154 Report a problem | ||
| 5/21/2015 | Listing removed | $24,000$5/sqft |
Source: Greenwich Office - Mason Street #99067223 Report a problem | ||
| 8/20/2014 | Listed for rent | $24,000+23.1%$5/sqft |
Source: Halstead Property #99067223 Report a problem | ||
| 7/10/2014 | Listing removed | $19,500$4/sqft |
Source: Greenwich Office - Mason Street #99067223 Report a problem | ||
| 5/29/2014 | Listed for rent | $19,500-7.1%$4/sqft |
Source: Halstead Property #99067223 Report a problem | ||
| 4/12/2014 | Listing removed | $21,000$5/sqft |
Source: Greenwich Office - Mason Street #99046692 Report a problem | ||
| 3/20/2014 | Price change | $21,000-12.5%$5/sqft |
Source: Greenwich Office - Mason Street #99046692 Report a problem | ||
| 11/8/2013 | Listed for rent | $24,000$5/sqft |
Source: Halstead Property #99046692 Report a problem | ||
| 4/11/2000 | Sold | $3,000,000+9.1%$648/sqft |
Source: Public Record Report a problem | ||
| 9/14/1999 | Sold | $2,750,000$594/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $25,638 +2.8% | $2,129,400 |
| 2024 | $24,935 +2.8% | $2,129,400 |
| 2023 | $24,254 +1% | $2,129,400 |
| 2022 | $24,020 -3.6% | $2,129,400 -0.9% |
| 2021 | $24,910 | $2,149,280 |
| 2020 | $24,910 -0.8% | $2,149,280 |
| 2019 | $25,104 +2.7% | $2,149,280 |
| 2018 | $24,437 | $2,149,280 |
| 2017 | $24,437 +7.4% | $2,149,280 +6.5% |
| 2015 | $22,750 +2.7% | $2,018,590 |
| 2014 | $22,144 +2.8% | $2,018,590 +0.1% |
| 2013 | $21,534 -2.9% | $2,016,280 |
| 2012 | $22,179 +8.8% | $2,016,280 |
| 2011 | $20,385 -8.2% | $2,016,280 -22% |
| 2010 | $22,195 +3.4% | $2,583,770 |
| 2009 | $21,471 +59.1% | $2,583,770 +53.9% |
| 2008 | $13,497 +3.6% | $1,678,740 |
| 2007 | $13,027 +3.5% | $1,678,740 |
| 2006 | $12,591 -9.8% | $1,678,740 +38.5% |
| 2005 | $13,956 +3.5% | $1,212,470 |
| 2004 | $13,483 +3.4% | $1,212,470 |
| 2003 | $13,034 -15.2% | $1,212,470 +47.5% |
| 2001 | $15,374 +5.6% | $822,150 |
| 2000 | $14,552 -4.6% | $822,150 |
| 1999 | $15,251 | $822,150 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 06831
Nearby schools
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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