Ready to Build YOUR Dream Home with YOUR design ideas & permits in Greenwich's Golden Triangle. This 2.3-acre property/land for a discerning buyer who values beauty, time and predictability. Shovel-Ready with custom architectural work by award-winning Saniee Architects. Full municipal approvals in place for your 10,000 square-foot residence -- save a year typically spent navigating architectural development, design review, and the uncertainty of the approval process- NO ARCHITECTURAL RESTRICTIONS. Spectacular privacy currently hidden by existing house. Architectural design freedom -- no style restrictions, no compromises in approved footprint - bring YOUR design vision to life without regulatory uncertainty, nor delay. Top, prestigious, beautiful land in one of Greenwich's top locations.
New construction
Price increase: $100K (8/7)
$4,995,000
121 Round Hill Rd, Greenwich, CT 06831
5beds
3,573sqft
Residential, Single Family Residence
Built in 1927
2.3 Acres Lot
$4,895,300 Zestimate®
$1,398/sqft
$-- HOA
What's special
Spectacular privacyTop prestigious beautiful land
- 40 days
- 1,926
- 59
Zillow last checked:
Listing updated:
Listed by:
Sabine Schoenberg 203-561-2893,
PrimeSites, Inc.
Source: Greenwich MLS, Inc.,MLS#: 125639
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
Heating
- Natural Gas, Forced Air
Cooling
- Central Air
Features
- Bookcases
- Windows: Double Pane Windows
- Basement: Finished
- Number of fireplaces: 2
Interior area
- Total structure area: 3,573
- Total interior livable area: 3,573 sqft
Property
Parking
- Total spaces: 3
- Parking features: Electric Gate
- Garage spaces: 3
Features
- Patio & porch: Terrace
- Has private pool: Yes
Lot
- Size: 2.3 Acres
- Features: Parklike, Stone Wall
Details
- Additional structures: Stable(s)
- Parcel number: 101428
- Zoning: RA-2
- Other equipment: Generator
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Residential, Single Family Residence
Materials
- Masonry, Stucco
- Roof: Slate,Metal
Condition
- To Be Built
- New construction: Yes
- Year built: 1927
Utilities & green energy
- Sewer: Private Sewer
- Water: Public
- Utilities for property: Cable Connected
Community & HOA
Community
- Security: Smoke Detector(s)
Location
- Region: Greenwich
Financial & listing details
- Price per square foot: $1,398/sqft
- Tax assessed value: $1,681,610
- Annual tax amount: $20,247
- Date on market: 8/7/2026
- Inclusions: Call LB
Estimated market value
$4,895,300
$4.65M - $5.14M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 8/7/2026 | Price change | $4,995,000+2%$1,398/sqft |
Source:  Greenwich MLS, Inc. #125639 Report a problem | ||
| 5/8/2026 | Listed for sale | $4,895,000+12.5%$1,370/sqft |
Source: Greenwich MLS, Inc. #122025 Report a problem | ||
| 10/27/2025 | Listing removed | $4,350,000$1,217/sqft |
Source:  Smart MLS #24083516 Report a problem | ||
| 5/15/2025 | Price change | $4,350,000-3.3%$1,217/sqft |
Source: Greenwich MLS, Inc. #122279 Report a problem | ||
| 2/7/2025 | Listed for sale | $4,500,000+100%$1,259/sqft |
Source: Greenwich MLS, Inc. #122025 Report a problem | ||
| 7/18/2022 | Sold | $2,250,000-4.9%$630/sqft |
Source: Public Record Report a problem | ||
| 5/2/2022 | Price change | $2,365,000-5.2%$662/sqft |
Source: Greenwich MLS, Inc. #114804 Report a problem | ||
| 3/4/2022 | Price change | $2,495,000-3.9%$698/sqft |
Source: Greenwich MLS, Inc. #114804 Report a problem | ||
| 2/10/2022 | Price change | $2,595,000-3.7%$726/sqft |
Source: Greenwich MLS, Inc. #114804 Report a problem | ||
| 12/13/2021 | Listed for sale | $2,695,000+58.5%$754/sqft |
Source: Greenwich MLS, Inc. #114804 Report a problem | ||
| 4/30/2018 | Sold | $1,700,000+0.3%$476/sqft |
Source: Greenwich MLS, Inc. #97832 Report a problem | ||
| 2/23/2018 | Pending sale | $1,695,000$474/sqft |
Source: PrimeSites, Inc. #97832 Report a problem | ||
| 1/2/2018 | Price change | $1,695,000-5.6%$474/sqft |
Source: PrimeSites, Inc. #97832 Report a problem | ||
| 10/25/2017 | Price change | $1,795,000-3%$502/sqft |
Source: PrimeSites, Inc. #97832 Report a problem | ||
| 8/3/2017 | Listed for sale | $1,850,000$518/sqft |
Source: PrimeSites, Inc. #97832 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $20,247 +2.8% | $1,681,610 |
| 2024 | $19,692 +2.8% | $1,681,610 |
| 2023 | $19,154 +1% | $1,681,610 |
| 2022 | $18,969 -1.5% | $1,681,610 +1.2% |
| 2021 | $19,250 | $1,660,890 |
| 2020 | $19,250 -0.8% | $1,660,890 |
| 2019 | $19,399 +2.7% | $1,660,890 |
| 2018 | $18,884 | $1,660,890 |
| 2017 | $18,884 -4.7% | $1,660,890 -5.6% |
| 2015 | $19,824 +2.7% | $1,759,030 |
| 2014 | $19,297 +2.7% | $1,759,030 |
| 2013 | $18,786 -2.9% | $1,759,030 |
| 2012 | $19,349 +8.8% | $1,759,030 |
| 2011 | $17,784 -6.1% | $1,759,030 -20.2% |
| 2010 | $18,933 +3.4% | $2,204,020 |
| 2009 | $18,315 +3.4% | $2,204,020 |
| 2008 | $17,720 +3.6% | $2,204,020 |
| 2007 | $17,103 +3.5% | $2,204,020 |
| 2006 | $16,530 -0.3% | $2,204,020 +53% |
| 2005 | $16,576 +3.5% | $1,440,180 |
| 2004 | $16,015 +3.4% | $1,440,180 |
| 2003 | $15,482 +19% | $1,440,180 +107% |
| 2001 | $13,008 +5.7% | $695,590 |
| 2000 | $12,312 -4.6% | $695,590 |
| 1999 | $12,903 | $695,590 |
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: Glenville
- 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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