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Single Family ResidenceResidential
$1,003,500$190 / 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 Aug 30, 2026
Last sold for $445,000 on Aug 23, 2002

17 KNOLLWOOD AVE

STAMFORD, CT 06905
6
Beds
5.5
Baths
5,285 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.
0.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
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

$1M
$905K 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.$445,000 · Aug 23, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,388 (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.$650,390 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$252,420
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$397,970
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$650,390
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$455,273

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.0.32
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
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(6)

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 · 0.8 mi
M
Cloonan SchoolC-
Middle · Grades 6–8 · 2.1 mi
E
Hart SchoolC
Elementary · Grades KG–5 · 2.2 mi

District: Stamford School District

Neighborhood · ZIP 06905These 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.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.116
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.95

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.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.25,946
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,098 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,763
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$154,609
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

17 Knollwood Ave 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 80% of homes in Stamford 06905
  • Among the lowest price per square foot in Turn of River
  • Among the largest homes in Turn of River
  • Has a smaller lot than 68% of homes in Western Connecticut County
  • Older than 76% of homes in Western Connecticut County

What homes are worth in Stamford 06905

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

This home
$288K$1.6M

This home is worth more than 80% of homes in Stamford 06905.

How it measures up in Stamford 06905

The dot is this home. The mark in the middle is the typical home in Stamford 06905.

Estimated value$1,003,500
CheaperTypical $797,858Pricier

Pricier than 80% of homes nearby

Price per ft²$190
CheaperTypical $426Pricier

Cheaper than almost all homes nearby

Living area5,285 ft²
SmallerTypical 1,836 ft²Bigger

Bigger than almost all homes nearby

Lot size0.32 ac
SmallerTypical 0.26 acBigger

Bigger than 64% of homes nearby

Year built1950
OlderTypical 1957Newer

Newer than 32% of homes nearby

How 17 Knollwood Ave ranks against every home in each area.
MeasureThis homeTurn of RiverStamford 06905Western Connecticut County
Estimated valuepricier than$1,003,50078% of homes80% of homes62% of homes
Price per ft²pricier than$190almost no homesalmost no homesalmost no homes
Living areabigger than5,285 ft²almost all homesalmost all homes95% of homes
Lot sizebigger than0.32 ac65% of homes64% of homes32% of homes
Year builtnewer than195030% of homes32% of homes24% of homes

About 17 Knollwood Ave

How much is 17 Knollwood Ave, Stamford, CT worth?

The TopHap Estimate for 17 Knollwood Ave, Stamford, CT is $1,003,500 as of Aug 30, 2026. The likely range is $904,727 to $1,102,273. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Knollwood Ave, Stamford, CT last sell?

17 Knollwood Ave, Stamford, CT last sold on Aug 23, 2002 for $445,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 17 Knollwood Ave, Stamford, CT?

17 Knollwood Ave, Stamford, CT has 6 bedrooms, 5.5 bathrooms, 5,285 square feet of living space and a 0.32-acre lot.

When was 17 Knollwood Ave, Stamford, CT built?

17 Knollwood Ave, Stamford, CT was built in 1950, making it 76 years old. It is a colonial home. The building has 2 stories.

What schools serve 17 Knollwood Ave, Stamford, CT?

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

How does 17 Knollwood Ave, Stamford, CT compare to other homes in Stamford 06905?

Among the 6,289 homes in Stamford 06905, it is worth more than 80% of them ($1,003,500 against a typical $797,858), its price per square foot is higher than almost none of them ($190 against a typical $426), it is bigger than almost all of them (5,285 ft² against a typical 1,836 ft²), its lot is bigger than 64% of them (0.32 ac against a typical 0.26 ac) and it is newer than 32% of them (1950 against a typical 1957). Measured against all of Western Connecticut County, it is worth more than 62% 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 17 Knollwood Ave, Stamford, CT?

The 2025 property tax bill for 17 Knollwood Ave, Stamford, CT was $15,388. The county assessed it at $650,390.

More homes on Knollwood Ave

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Assigned schools

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