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Single Family ResidenceResidential
$1,160,311$337 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $903,500 on Jun 29, 2006

521 DEN RD

STAMFORD, CT 06903
4
Beds
3 / 2
Baths
3,440 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.
1.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.2M
$1M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$903,500 · Jun 29, 2006

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,059 (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.$604,150 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$272,610
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$331,540
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$604,150
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$422,905

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.23 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.Split Level
CountyWESTERN CONNECTICUT
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1975
Lot (acres)The size of the land the home sits on, from county records.1.11
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
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(11)

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.

H
Westhill High SchoolD
High · Grades 9–12 · 1.6 mi
E
Roxbury SchoolC-
Elementary · Grades KG–5 · 1.8 mi
M
Cloonan SchoolD+
Middle · Grades 6–8 · 4.1 mi

District: Stamford School District

Neighborhood · ZIP 06903These 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.35
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.118
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.6%
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.16,237
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.876 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$199,285
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$228,302
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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

521 Den Rd 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 68% of homes in Western Connecticut County
  • Costs less per square foot than 78% of homes in Stamford 06903
  • Bigger than 83% of homes in Western Connecticut County
  • Has a bigger lot than 68% of homes in Western Connecticut County
  • Older than 75% of homes in Stamford 06903

What homes are worth in Stamford 06903

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

This home
$704K$2.5M

This home is worth more than 49% of homes in Stamford 06903.

How it measures up in Stamford 06903

The dot is this home. The mark in the middle is the typical home in Stamford 06903.

Estimated value$1,160,311
CheaperTypical $1,166,825Pricier

Pricier than 49% of homes nearby

Price per ft²$337
CheaperTypical $385Pricier

Pricier than 22% of homes nearby

Living area3,440 ft²
SmallerTypical 3,118 ft²Bigger

Bigger than 62% of homes nearby

Lot size1.11 ac
SmallerTypical 1.07 acBigger

Bigger than 56% of homes nearby

Year built1957
OlderTypical 1965Newer

Newer than 25% of homes nearby

How 521 Den Rd ranks against every home in each area.
MeasureThis homeStamford 06903Western Connecticut County
Estimated valuepricier than$1,160,31149% of homes68% of homes
Price per ft²pricier than$33722% of homes27% of homes
Living areabigger than3,440 ft²62% of homes83% of homes
Lot sizebigger than1.11 ac56% of homes68% of homes
Year builtnewer than195725% of homes34% of homes

About 521 Den Rd

How much is 521 Den Rd, Stamford, CT worth?

The TopHap Estimate for 521 Den Rd, Stamford, CT is $1,160,311 as of Oct 21, 2026. The likely range is $1,048,277 to $1,272,345. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Den Rd, Stamford, CT last sell?

521 Den Rd, Stamford, CT last sold on Jun 29, 2006 for $903,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 521 Den Rd, Stamford, CT?

521 Den Rd, Stamford, CT has 4 bedrooms, 3 bathrooms, 3,440 square feet of living space and a 1.11-acre lot.

When was 521 Den Rd, Stamford, CT built?

521 Den Rd, Stamford, CT was built in 1957, making it 69 years old. It is a split level home. The building has 2 stories.

What schools serve 521 Den Rd, Stamford, CT?

521 Den Rd, Stamford, CT is assigned to Westhill High School (high), rated D; Roxbury School (elementary), rated C-; Cloonan School (middle), rated D+. All sit in Stamford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Den Rd, Stamford, CT compare to other homes in Stamford 06903?

Among the 5,184 homes in Stamford 06903, it is worth more than 49% of them ($1,160,311 against a typical $1,166,825), its price per square foot is higher than 22% of them ($337 against a typical $385), it is bigger than 62% of them (3,440 ft² against a typical 3,118 ft²), its lot is bigger than 56% of them (1.11 ac against a typical 1.07 ac) and it is newer than 25% of them (1957 against a typical 1965). Measured against all of Western Connecticut County, it is worth more than 68% 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 521 Den Rd, Stamford, CT?

The 2025 property tax bill for 521 Den Rd, Stamford, CT was $14,059. The county assessed it at $604,150.

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