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Single Family ResidenceResidential
$365,547$314 / 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 Sep 24, 2026
Last sold for $130,000 on May 17, 1999

40 PLATT ST

ANSONIA, CT 06401
2
Beds
1
Baths
1,164 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$366K
$352K low$379K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$130,000 · May 17, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,623 (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.$161,910 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$38,010
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$123,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$161,910
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$231,300

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.0.21
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

Foreclosure Filings(1)

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 · 0.8 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

40 Platt 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.

  • Costs more per square foot than 80% of homes in Naugatuck Valley County
  • Smaller than 77% of homes in Ansonia 06401
  • Has a smaller lot than 74% of homes in Naugatuck Valley County
  • Newer than 79% 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 36% 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$365,547
CheaperTypical $390,650Pricier

Pricier than 36% of homes nearby

Price per ft²$314
CheaperTypical $295Pricier

Pricier than 60% of homes nearby

Living area1,164 ft²
SmallerTypical 1,488 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.21 ac
SmallerTypical 0.24 acBigger

Bigger than 43% of homes nearby

Year built1971
OlderTypical 1955Newer

Newer than 79% of homes nearby

How 40 Platt St ranks against every home in each area.
MeasureThis homeAnsonia 06401Naugatuck Valley County
Estimated valuepricier than$365,54736% of homes44% of homes
Price per ft²pricier than$31460% of homes80% of homes
Living areabigger than1,164 ft²23% of homes25% of homes
Lot sizebigger than0.21 ac43% of homes26% of homes
Year builtnewer than197179% of homes55% of homes

About 40 Platt St

How much is 40 Platt St, Ansonia, CT worth?

The TopHap Estimate for 40 Platt St, Ansonia, CT is $365,547 as of Sep 24, 2026. The likely range is $352,195 to $378,899. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Platt St, Ansonia, CT last sell?

40 Platt St, Ansonia, CT last sold on May 17, 1999 for $130,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 40 Platt St, Ansonia, CT?

40 Platt St, Ansonia, CT has 2 bedrooms, 1 bathrooms, 1,164 square feet of living space and a 0.21-acre lot.

When was 40 Platt St, Ansonia, CT built?

40 Platt St, Ansonia, CT was built in 1971, making it 55 years old. It is a ranch home. The building has 1 story.

What schools serve 40 Platt St, Ansonia, CT?

40 Platt 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 40 Platt St, Ansonia, CT compare to other homes in Ansonia 06401?

Among the 5,259 homes in Ansonia 06401, it is worth more than 36% of them ($365,547 against a typical $390,650), its price per square foot is higher than 60% of them ($314 against a typical $295), it is bigger than 23% of them (1,164 ft² against a typical 1,488 ft²), its lot is bigger than 43% of them (0.21 ac against a typical 0.24 ac) and it is newer than 79% of them (1971 against a typical 1955). Measured against all of Naugatuck Valley County, it is worth more than 44% 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 40 Platt St, Ansonia, CT?

The 2025 property tax bill for 40 Platt St, Ansonia, CT was $4,623. The county assessed it at $161,910.

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