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Single Family ResidenceResidential
$967,301$476 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $595,000 on Dec 21, 2004

21 CARROLL ST

STAMFORD, CT 06907
4
Beds
2.5
Baths
2,034 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$967K
$861K low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$595,000 · Dec 21, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,704 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$494,660 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$246,720
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$247,940
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$494,660
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$346,262

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.49
45
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyWESTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.23
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(5)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Springdale SchoolB
Elementary · Grades KG–5 · 0.2 mi
M
Dolan SchoolC-
Middle · Grades 6–8 · 1.1 mi
H
Stamford High SchoolD
High · Grades 9–12 · 2.3 mi

District: Stamford School District

Neighborhood · ZIP 06907These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.96

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.9,871
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,763 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$117,211
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,576
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

21 Carroll St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 89% of homes in Springdale
  • Costs more per square foot than 74% of homes in Springdale
  • Bigger than 78% of homes in Springdale
  • Has a smaller lot than 79% of homes in Western Connecticut County
  • Newer than 91% of homes in Springdale

What homes are worth in Stamford 06907

Each bar is how many homes fall in that price range. The marker is this home.

This home
$251K$1.6M

This home is worth more than 84% of homes in Stamford 06907.

How it measures up in Stamford 06907

The dot is this home. The mark in the middle is the typical home in Stamford 06907.

Estimated value$967,301
CheaperTypical $727,036Pricier

Pricier than 84% of homes nearby

Price per ft²$476
CheaperTypical $429Pricier

Pricier than 72% of homes nearby

Living area2,034 ft²
SmallerTypical 1,662 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.23 ac
SmallerTypical 0.23 acBigger

Bigger than 50% of homes nearby

Year built2002
OlderTypical 1961Newer

Newer than 91% of homes nearby

How 21 Carroll St ranks against every home in each area.
MeasureThis homeSpringdaleStamford 06907Western Connecticut County
Estimated valuepricier than$967,30189% of homes84% of homes61% of homes
Price per ft²pricier than$47674% of homes72% of homes63% of homes
Living areabigger than2,034 ft²78% of homes72% of homes52% of homes
Lot sizebigger than0.23 ac54% of homes50% of homes21% of homes
Year builtnewer than200291% of homes91% of homes90% of homes

About 21 Carroll St

How much is 21 Carroll St, Stamford, CT worth?

The TopHap Estimate for 21 Carroll St, Stamford, CT is $967,301 as of Aug 30, 2026. The likely range is $861,211 to $1,073,391. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Carroll St, Stamford, CT last sell?

21 Carroll St, Stamford, CT last sold on Dec 21, 2004 for $595,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Carroll St, Stamford, CT?

21 Carroll St, Stamford, CT has 4 bedrooms, 2.5 bathrooms, 2,034 square feet of living space and a 0.23-acre lot.

When was 21 Carroll St, Stamford, CT built?

21 Carroll St, Stamford, CT was built in 2002, making it 24 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Carroll St, Stamford, CT?

21 Carroll St, Stamford, CT is assigned to Springdale School (elementary), rated B; Dolan School (middle), rated C-; Stamford High School (high), rated D. All sit in Stamford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Carroll St, Stamford, CT compare to other homes in Stamford 06907?

Among the 3,174 homes in Stamford 06907, it is worth more than 84% of them ($967,301 against a typical $727,036), its price per square foot is higher than 72% of them ($476 against a typical $429), it is bigger than 72% of them (2,034 ft² against a typical 1,662 ft²), its lot is bigger than 50% of them (0.23 ac against a typical 0.23 ac) and it is newer than 91% of them (2002 against a typical 1961). Measured against all of Western Connecticut County, it is worth more than 61% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21 Carroll St, Stamford, CT?

The 2025 property tax bill for 21 Carroll St, Stamford, CT was $11,704. The county assessed it at $494,660.

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