21 Sound Beach Ave, Old Greenwich, CT 06870
Home value
$1,827,900
$1.65M - $2.03M
$7,730/mo
Owner options
$7,730/mo
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Rent Zestimate®
$10,201/mo
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Est. payment
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Zillow last checked:
Listing updated:
Mary Jones 203-249-2950,
Sotheby's International Realty
Jen Danzi, REB.0795133
Jennifer M Danzi, Broker
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 2
- Full bathrooms: 1
- 1/2 bathrooms: 1
Heating
- Natural Gas, Hot Water
Cooling
- Central Air
Features
- Windows: Double Pane Windows
- Basement: Full
- Number of fireplaces: 1
Interior area
- Total structure area: 1,690
- Total interior livable area: 1,690 sqft
Property
Parking
- Total spaces: 1
- Parking features: Garage
- Garage spaces: 1
Features
- Patio & porch: Deck
- Exterior features: Gas Grill
Lot
- Size: 10,018 Square Feet
- Features: Level
Details
- Parcel number: 051806/S
- Zoning: R-7
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Cottage
- Property subtype: Residential, Single Family Residence
Materials
- Vinyl Siding
- Roof: Shingle
Condition
- Year built: 1941
- Major remodel year: 2022
Utilities & green energy
- Water: Public
Community & HOA
Community
- Security: Security System
Location
- Region: Old Greenwich
Financial & listing details
- Price per square foot: $1,071/sqft
- Tax assessed value: $777,770
- Annual tax amount: $9,612
- Date on market: 4/9/2026
- Inclusions: Washer/Dryer, All Kitchen Applncs
Price history
| Date | Event | Price |
|---|---|---|
| 5/15/2026 | Sold | $1,810,000+4.9%$1,071/sqft |
Source: | ||
| 4/16/2026 | Pending sale | $1,725,000$1,021/sqft |
Source: | ||
| 4/9/2026 | Listed for sale | $1,725,000+80.3%$1,021/sqft |
Source: | ||
| 5/27/2025 | Listing removed | $8,000$5/sqft |
Source: Zillow Rentals Report a problem | ||
| 5/9/2025 | Listed for rent | $8,000+6.7%$5/sqft |
Source: Zillow Rentals Report a problem | ||
| 5/10/2024 | Listing removed | -- |
Source: Zillow Rentals Report a problem | ||
| 4/19/2024 | Listed for rent | $7,500$4/sqft |
Source: Zillow Rentals Report a problem | ||
| 4/16/2020 | Sold | $957,000+1.3%$566/sqft |
Source: | ||
| 4/8/2020 | Pending sale | $945,000$559/sqft |
Source: Coldwell Banker Res Brokerage #170271431 Report a problem | ||
| 2/12/2020 | Listed for sale | $945,000+38%$559/sqft |
Source: Coldwell Banker Residential Brokerage - Old Greenwich Office #108818 Report a problem | ||
| 8/7/2012 | Sold | $685,000-8.1%$405/sqft |
Source: Public Record Report a problem | ||
| 4/18/2012 | Price change | $745,000-4.4%$441/sqft |
Source: William Raveis Real Estate #81448 Report a problem | ||
| 2/28/2012 | Listed for sale | $779,000+102.3%$461/sqft |
Source: William Raveis Real Estate #81448 Report a problem | ||
| 5/5/1998 | Sold | $385,000$228/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $9,612 +3.5% | $777,770 |
| 2024 | $9,283 +2.6% | $777,770 |
| 2023 | $9,050 +0.9% | $777,770 |
| 2022 | $8,968 +6.3% | $777,770 +11% |
| 2021 | $8,438 +0.2% | $700,840 |
| 2020 | $8,424 -0.8% | $700,840 +0.2% |
| 2019 | $8,489 +2.3% | $699,230 |
| 2018 | $8,300 -1.2% | $699,230 |
| 2017 | $8,404 +6.7% | $699,230 +5.9% |
| 2015 | $7,873 +2.6% | $660,170 |
| 2014 | $7,674 +2.8% | $660,170 |
| 2013 | $7,467 +2.8% | $660,170 |
| 2012 | $7,262 +3.4% | $660,170 |
| 2011 | $7,024 -5.5% | $660,170 -19.7% |
| 2010 | $7,434 +3.4% | $822,360 |
| 2009 | $7,187 +3.5% | $822,360 |
| 2008 | $6,941 +3.6% | $822,360 |
| 2007 | $6,702 | $822,360 |
Neighborhood: Riverside
Nearby homes
- $2,119,3004 bd2 ba2k sqft23 Sound Beach Ave, Old Greenwich, CT 06870Off Market
- $1,523,9002 bd1 ba1.5k sqft1 Old Greenwich Ln, Old Greenwich, CT 06870Off Market
- $1,600,0003 bd3 ba1.7k sqft25 Sound Beach Ave, Old Greenwich, CT 06870Sold
- $1,219,8003 bd1 ba1.2k sqft7 Peters Rd, Riverside, CT 06878Off Market
- $1,699,6003 bd2 ba1.6k sqft3 Linwood Ave, Riverside, CT 06878Off Market
- $1,932,4003 bd2 ba2.4k sqft9 Peters Rd, Riverside, CT 06878Off Market
- $1,926,9003 bd2 ba2.2k sqft5 Linwood Ave, Riverside, CT 06878Off Market
- $1,579,0003 bd3 ba1.9k sqft27 Sound Beach Ave, Old Greenwich, CT 06870Sold
Nearby schools
GreatSchools rating
- 10/10International School At DundeeGrades: K-5Distance: 0.7 mi
- 10/10Eastern Middle SchoolGrades: 6-8Distance: 0.7 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 2 mi
Schools provided by the listing agent
- Elementary: Dundee
- Middle: Eastern
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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Sell for more on Zillow
- Connecticut
- Fairfield County
- Greenwich
- 06870
- Riverside
- 21 Sound Beach Ave