Set on 6.58 elevated acres on prestigious Round Hill Rd, this distinguished property—once part of the 200+ acre Wilshire Farms estate—offers a rare opportunity to own a piece of local history. A dramatic, gated quarter-mile driveway past white split-rail fencing leads to a 1910 carriage house. The property includes a 4-bedroom guest cottage, a detached 3-car garage, 3-stall stables, a pool with cabana, and a tennis court. Unique opportunity to own exceptional country retreat and a part of Greenwich history.
Under contract
$7,900,000
577 Round Hill Rd, Greenwich, CT 06831
4beds
8,188sqft
Est.:
Residential, Single Family Residence
Built in 1914
6.58 Acres Lot
$7,377,200 Zestimate®
$965/sqft
$-- HOA
What's special
Tennis courtPool with cabanaElevated acresDramatic gated quarter-mile drivewayWhite split-rail fencing
- 117 days |
- 184 |
- 6 |
Zillow last checked: 8 hours ago
Listing updated: November 12, 2025 at 02:25pm
Listed by:
Joseph Barbieri 203-940-2025,
Sotheby's International Realty
Source: Greenwich MLS, Inc.,MLS#: 123534
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 6
- Full bathrooms: 5
- 1/2 bathrooms: 1
Heating
- Forced Air, Oil
Cooling
- Central Air
Features
- Eat-in Kitchen, Pantry, Wet Bar
- Basement: Unfinished
- Number of fireplaces: 2
Interior area
- Total structure area: 8,188
- Total interior livable area: 8,188 sqft
Property
Parking
- Total spaces: 3
- Parking features: Electric Gate
- Garage spaces: 3
Features
- Patio & porch: Terrace
- Has private pool: Yes
Lot
- Size: 6.58 Acres
- Features: Level
Details
- Additional structures: Stable(s), Pool House
- Parcel number: 102806
- Zoning: RA-4
- Other equipment: Generator
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Carriage House
- Property subtype: Residential, Single Family Residence
Materials
- Stucco
- Roof: Asphalt
Condition
- Year built: 1914
- Major remodel year: 1997
Utilities & green energy
- Sewer: Septic Tank
- Water: Well
Community & HOA
Community
- Security: Security System
Location
- Region: Greenwich
Financial & listing details
- Price per square foot: $965/sqft
- Tax assessed value: $4,845,190
- Annual tax amount: $58,336
- Date on market: 9/5/2025
- Inclusions: Washer/Dryer, All Kitchen Applncs
Estimated market value
$7,377,200
$7.01M - $7.75M
$6,831/mo
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 11/12/2025 | Contingent | $7,900,000$965/sqft |
Source:  Greenwich MLS, Inc. #123534 Report a problem | ||
| 9/5/2025 | Listed for sale | $7,900,000+5.3%$965/sqft |
Source: Greenwich MLS, Inc. #123534 Report a problem | ||
| 5/24/2000 | Sold | $7,500,000+76.5%$916/sqft |
Source:  Smart MLS #98064613 Report a problem | ||
| 3/11/1994 | Sold | $4,250,000$519/sqft |
Source: Public Record Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $58,336 +2.8% | $4,845,190 |
| 2024 | $56,737 +2.8% | $4,845,190 |
| 2023 | $55,187 +1% | $4,845,190 |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$44,525/mo
Principal & interest
$30634
Property taxes
$11126
Home insurance
$2765
Climate risks
Neighborhood: 06831
Nearby schools
GreatSchools rating
- 9/10Parkway SchoolGrades: K-5Distance: 0.9 mi
- 7/10Western Middle SchoolGrades: 6-8Distance: 7.6 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 6.3 mi
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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