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Single Family ResidenceResidential
$493,898$301 / 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 96How 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 $205,000 on May 1, 2018

31 SPRING ST

ANSONIA, CT 06401
3
Beds
2.5
Baths
1,643 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1976
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$494K
$473K low$514K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$205,000 · May 1, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,077 (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.$247,870 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$37,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$210,770
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$247,870
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$354,100

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.Ranch
CountyNAUGATUCK VALLEY
Lot (acres)The size of the land the home sits on, from county records.0.38
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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, Attached
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(7)

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
Prendergast SchoolC-
Elementary · Grades PK–5 · 0.6 mi

District: Ansonia School District

Neighborhood · ZIP 06401These 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.148
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.19,793
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,088 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$70,317
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$88,812
Average tempThe average temperature here across a full year.50°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

31 Spring 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 Ansonia 06401
  • Costs more per square foot than 74% of homes in Naugatuck Valley County
  • Has a bigger lot than 81% of homes in Ansonia 06401
  • Newer than 81% of homes in Ansonia 06401

What homes are worth in Ansonia 06401

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

This home
$217K$558K

This home is worth more than 89% of homes in Ansonia 06401.

How it measures up in Ansonia 06401

The dot is this home. The mark in the middle is the typical home in Ansonia 06401.

Estimated value$493,898
CheaperTypical $390,650Pricier

Pricier than 89% of homes nearby

Price per ft²$301
CheaperTypical $295Pricier

Pricier than 53% of homes nearby

Living area1,643 ft²
SmallerTypical 1,488 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.38 ac
SmallerTypical 0.24 acBigger

Bigger than 81% of homes nearby

Year built1976
OlderTypical 1955Newer

Newer than 81% of homes nearby

How 31 Spring St ranks against every home in each area.
MeasureThis homeAnsonia 06401Naugatuck Valley County
Estimated valuepricier than$493,89889% of homes71% of homes
Price per ft²pricier than$30153% of homes74% of homes
Living areabigger than1,643 ft²59% of homes57% of homes
Lot sizebigger than0.38 ac81% of homes49% of homes
Year builtnewer than197681% of homes61% of homes

About 31 Spring St

How much is 31 Spring St, Ansonia, CT worth?

The TopHap Estimate for 31 Spring St, Ansonia, CT is $493,898 as of Aug 30, 2026. The likely range is $473,465 to $514,331. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Spring St, Ansonia, CT last sell?

31 Spring St, Ansonia, CT last sold on May 1, 2018 for $205,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 31 Spring St, Ansonia, CT?

31 Spring St, Ansonia, CT has 3 bedrooms, 2.5 bathrooms, 1,643 square feet of living space and a 0.38-acre lot.

When was 31 Spring St, Ansonia, CT built?

31 Spring St, Ansonia, CT was built in 1976, making it 50 years old. It is a ranch home. The building has 1 story.

What schools serve 31 Spring St, Ansonia, CT?

31 Spring St, Ansonia, CT is assigned to Prendergast School (elementary), rated C-. All sit in Ansonia School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Spring St, Ansonia, CT compare to other homes in Ansonia 06401?

Among the 5,259 homes in Ansonia 06401, it is worth more than 89% of them ($493,898 against a typical $390,650), its price per square foot is higher than 53% of them ($301 against a typical $295), it is bigger than 59% of them (1,643 ft² against a typical 1,488 ft²), its lot is bigger than 81% of them (0.38 ac against a typical 0.24 ac) and it is newer than 81% of them (1976 against a typical 1955). Measured against all of Naugatuck Valley County, it is worth more than 71% 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 31 Spring St, Ansonia, CT?

The 2025 property tax bill for 31 Spring St, Ansonia, CT was $7,077. The county assessed it at $247,870.

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