21 Clark Street Ext, Derby, CT 06418 is a single family home that contains 2,256 sq ft and was built in 2007. It contains 3 bedrooms and 2.5 bathrooms. This home last sold for $545,000 in January 2026.
The Zestimate for this house is $560,800. The Rent Zestimate for this home is $3,268/mo.
Sold for $545,000
$545,000
21 Clark Street Ext, Derby, CT 06418
3beds
2baths
2,256sqft
SingleFamily
Built in 2007
0.43 Acres Lot
$560,800 Zestimate®
$242/sqft
$3,268 Estimated rent
Home value
$560,800
$499,000 - $628,000
$3,268/mo
Zestimate® history
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$3,268/mo
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$3,966/mo
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$3,966/mo
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 2.5
Heating
- Forced air, Gas
Features
- Has fireplace: Yes
Interior area
- Total interior livable area: 2,256 sqft
Property
Parking
- Parking features: Garage - Attached
Features
- Exterior features: Other
Lot
- Size: 0.43 Acres
Details
- Parcel number: DERBM6B11L41A
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
Materials
- Frame
Condition
- Year built: 2007
Community & HOA
Location
- Region: Derby
Financial & listing details
- Price per square foot: $242/sqft
- Tax assessed value: $217,560
- Annual tax amount: $9,399
Price history
| Date | Event | Price |
|---|---|---|
| 1/29/2026 | Sold | $545,000+23.9%$242/sqft |
Source: Public Record Report a problem | ||
| 11/12/2021 | Sold | $440,000+37.5%$195/sqft |
Source: Public Record Report a problem | ||
| 5/11/2010 | Sold | $320,000-24.9%$142/sqft |
Source: Public Record Report a problem | ||
| 9/10/2007 | Sold | $426,200$189/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $9,399 | $217,560 |
| 2024 | $9,399 +11.9% | $217,560 |
| 2023 | $8,398 | $217,560 |
| 2022 | $8,398 | $217,560 |
| 2021 | $8,398 -9.7% | $217,560 +2.7% |
| 2020 | $9,296 +4.8% | $211,890 |
| 2019 | $8,872 +6.4% | $211,890 |
| 2018 | $8,342 | $211,890 |
| 2017 | $8,342 +3.3% | $211,890 -6.2% |
| 2015 | $8,073 | $225,890 |
| 2014 | $8,073 +1.1% | $225,890 |
| 2013 | $7,983 -0.4% | $225,890 |
| 2012 | $8,019 +19.9% | $225,890 -0.7% |
| 2011 | $6,689 -11.7% | $227,500 -17.7% |
| 2010 | $7,578 +3.8% | $276,570 |
| 2009 | $7,301 | $276,570 |
| 2008 | $7,301 +370.7% | $276,570 +354.7% |
| 2007 | $1,551 | $60,830 |
Find assessor info on the county website
Neighborhood: 06418
Nearby homes
- $445,5003 bd1 ba1.9k sqft23 Clark Street Ext, Derby, CT 06418Off Market
- $568,3004 bd3 ba2.2k sqft19 Clark Street Ext, Derby, CT 06418Off Market

- $729,7003 bd2 ba3k sqft25 Clark Street Ext, Derby, CT 06418Off Market
- $100,730-- bd-- ba-- sqft25 Clark Street Ext, Derby, CT 06418Off Market
- $631,4003 bd2 ba2.8k sqft33 Clark Street Ext, Derby, CT 06418Off Market
- $448,6003 bd1 ba3.8k sqft20 Clark Street Ext, Derby, CT 06418Off Market
- $600,0005 bd5 ba3.5k sqft14 Clark St, Derby, CT 06418Sold
- $381,1004 bd2 ba1.3k sqft19 Academy Hill Rd, Derby, CT 06418Off Market
Nearby schools
GreatSchools rating
- 3/10Bradley SchoolGrades: K-5Distance: 1 mi
- 4/10Derby Middle SchoolGrades: 6-8Distance: 1.2 mi
- 1/10Derby High SchoolGrades: 9-12Distance: 1.1 mi
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$560,800
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$572,016
- Connecticut
- New Haven County
- Derby
- 06418
- 21 Clark Street Ext