Date
Details
Price
Change
Source
3/30/2026
Listed
$12,900,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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$12,900,000 Just Listed
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Property Description
Nestled on 4.09 acres in Greenwich, CT, this breathtaking 8-bedroom Georgian Colonial estate offers unparalleled elegance and privacy. Commanding spectacular big sky views from its perch 560' above sea level, the property features exquisite formal gardens, and pool. Inside, grand-scale rooms with soaring ceilings, masterful stonework, elegant millwork, and arches create a luxurious atmosphere. Highlights include a Beverly Ellsley gourmet kitchen, cherry library, solarium, and expansive living areas. The primary suite boasts two dressing rooms, spa baths, and a sitting room. A true modern-day ''Great Estate,'' just an hour from NYC.
Full Property Details
Full Property Details for 550 Round Hill Rd
General
- Price: $12,900,000
- Taxes: $89,715
- Status: Active
- Type: Single Family
- Source: Greenwich
- MLS ID: 124589
- Updated: 3/30/2026
- Added to Site: 2 day(s) ago
Interior
- Interior Features: Back Stairs
- Number of Fireplaces: 8
Rooms
Bathrooms
- Total Bathrooms: 13
- Full Bathrooms: 9
- Half Bathrooms: 4
Bedrooms
- Total Bedrooms: 8
Other Rooms
- Laundry: Laundry Room
Additional Information
- Pool: Yes
- Private Pool: Yes
- Pool Description: With Spa
- Security/Safety: Security System
Exterior
- Porch/Patio/Deck: Terrace
Parking
- Garage: Yes
- Attached garage: Yes
- Garage Spaces: 6
Location
- Area: 3 - Greenwich
- County: Fairfield
School Information
- Elementary School: Parkway
- Middle School: Western
Heating & Cooling
- Central air: Yes
- Air Conditioning: Yes
- Cooling Type: Central Air
- Heating Type: Hydro-Air, Oil
- Heating Fuel: Oil
- Water Heater: Oil
Utilities
- Gas: Propane
- Sewer: Septic Tank
- Water: Well
- Well: Yes
- Utility Description: Propane
Structural Information
- Architectural Style: Georgian
- Construction: Stone
- Basement Desc.: Finished
- Roof: Slate
- Windows: Double Pane Windows
- Square Feet: 13,268
- Sq. Ft. Source: Taxcard
- Year Built: 1998
Lot Features
- Lot Size (Acres): 4.09
- Lot Size (Sq. Ft.): 178,160.4
- Irrigation System: Sprinkler System
- Topography: True
- Lot Features: Level, Parklike
- Zoning: RA-4
- Lot Description: Park, Level
Financial Considerations
- Price Per Sq. Ft.: $972.26
- Tax Amount: $89,715
Disclosures and Reports
- Exclusions: Call LB
- Inclusions: Washer/Dryer, All Kitchen Applncs
- Property ID: 10-2009
Listed by Sotheby's International Realty
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Listing agent
— 550 Round Hill Rd —
Sotheby's International Realty
NMLS#: 1598647Get Pre-Approved Today
Schools
Schools serving 550 Round Hill Rd
School District:Greenwich School District
| Name | Grades | Distance |
|---|---|---|
Parkway School 141 Lower Cross Road, Greenwich, CT 06831 | K-5 | 0.8 mi |
Western Middle School 1 Western Junior Highway, Greenwich, CT 06830 | 6-8 | 7.2 mi |
Greenwich High School 10 Hillside Road, Greenwich, CT 06830 | 9-12 | 6 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 550 Round Hill Rd
Tax History
Tax History for 550 Round Hill Rd
Year
Property Taxes
Change
Tax Assessment
Change
2024
$89,715
3%
$7,451,430
—
2023
$87,256
3%
$7,451,430
—
2023
$84,872
1%
$7,451,430
—
2022
$84,052
-3%
$7,451,430
-1%
2021
$86,809
—
$7,490,000
—
2020
$86,809
-1%
$7,490,000
—
2019
$87,483
-9%
$7,490,000
-11%
2018
$95,830
—
$8,428,350
—
2017
$95,830
2%
$8,428,350
—
2016
$94,398
12%
$8,428,350
13%
2015
$84,368
3%
$7,486,080
—
2014
$82,122
3%
$7,486,080
—
2013
$79,951
—
$7,486,080
—
2011
$79,951
—
$7,486,080
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 550 Round Hill Rd
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- Single Family
- Active
- Updated 6 days ago
- 6Beds
- 11Total Baths
- 10,421Sq. Ft.
Listed by Sotheby's International Realty
- Single Family
- Active
- 7Beds
- 9Total Baths
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Listed by Houlihan Lawrence
- Single Family
- Active
- Updated 4 days ago
- 6Beds
- 8Total Baths
- 10,286Sq. Ft.
Listed by Sotheby's International Realty
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- Single Family
- Active
- Updated 2 days ago
- 4Beds
- 2Total Baths
- 1,481Sq. Ft.
Listed by The Richard Breglia Team (203) 273-3916
- Single Family
- Active
- Updated 5 days ago
- 4Beds
- 2Total Baths
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Listed by Houlihan Lawrence
- Single Family
- Active
- Updated 5 days ago
- 3Beds
- 3Total Baths
- 2,228Sq. Ft.
Listed by BHHS New England Properties
- Single Family
- Active
- Updated 16 hours ago
- 5Beds
- 5Total Baths
- 3,384Sq. Ft.
Listed by Sotheby's International Realty
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- Condo
- Active
- Updated 15 hours ago
- 2Beds
- 2Total Baths
- 1,160Sq. Ft.
Listed by Diana Gould (203) 249-6656
- High Rise Apartment
- Active
- Updated 16 hours ago
- 3Beds
- 3Total Baths
- 1,680Sq. Ft.
- Single Family
- Active
- Updated 11 hours ago
- 4Beds
- 4Total Baths
- 3,400Sq. Ft.
- Apartment
- Active
- Updated 12 hours ago
- 1Bed
- 1Total Bath
- 891Sq. Ft.
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- Single Family
- Closed
- 7Beds
- 13Total Baths
- 16,597Sq. Ft.
Listed and Sold by Houlihan Lawrence
- Single Family
- Closed
- 7Beds
- 10Total Baths
- 11,555Sq. Ft.
Listed by Houlihan Lawrence
Sold by Sotheby's International Realty
Sold by Sotheby's International Realty
- Single Family
- Closed
- 7Beds
- 8Total Baths
- 6,966Sq. Ft.
Listed by Houlihan Lawrence
Sold by Sotheby's International Realty
Sold by Sotheby's International Realty
- Single Family
- Closed
- 5Beds
- 7Total Baths
- 8,306Sq. Ft.
Listed by Compass Connecticut, LLC
Sold by Foreign Listing
Sold by Foreign Listing
550 Round Hill Road, Greenwich, CT 06831 (MLS# 124589) is a Single Family property with 8 bedrooms, 9 full bathrooms and 4 partial bathrooms. 550 Round Hill Road is currently listed for $12,900,000 and was received on March 30, 2026. Want to learn more about 550 Round Hill Road? Do you have questions about finding other Single Family real estate for sale in Greenwich? You can browse all Greenwich real estate or contact a Coldwell Banker agent to request more information.