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Duplex (2 Units, Any Combination)Residential

109 TREMONT ST

ANSONIA, CT 06401
6
Beds
2
Baths
2,576 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
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.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,974 (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.$279,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$38,780
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$240,520
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$279,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$399,000

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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.26%
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.Duplex (2 Units, Any Combination)
CountyNAUGATUCK VALLEY
Lot (acres)The size of the land the home sits on, from county records.0.34
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.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.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(1)

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 SchoolD
Elementary · Grades PK–5 · 1.1 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

109 Tremont 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.

  • Bigger than 89% of homes in Ansonia 06401
  • Has a bigger lot than 74% of homes in Ansonia 06401
  • Newer than 85% 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.

Living area2,576 ft²
SmallerTypical 1,486 ft²Bigger

Bigger than 89% of homes nearby

Lot size0.34 ac
SmallerTypical 0.23 acBigger

Bigger than 74% of homes nearby

Year built1983
OlderTypical 1955Newer

Newer than 85% of homes nearby

How 109 Tremont St ranks against every home in each area.
MeasureThis homeAnsonia 06401Naugatuck Valley County
Living areabigger than2,576 ft²89% of homes86% of homes
Lot sizebigger than0.34 ac74% of homes42% of homes
Year builtnewer than198385% of homes68% of homes

About 109 Tremont St

When did 109 Tremont St, Ansonia, CT last sell?

109 Tremont St, Ansonia, CT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 109 Tremont St, Ansonia, CT?

109 Tremont St, Ansonia, CT has 6 bedrooms, 2 bathrooms, 2,576 square feet of living space and a 0.34-acre lot.

When was 109 Tremont St, Ansonia, CT built?

109 Tremont St, Ansonia, CT was built in 1983, making it 43 years old. The building has 2 stories.

What schools serve 109 Tremont St, Ansonia, CT?

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

How does 109 Tremont St, Ansonia, CT compare to other homes in Ansonia 06401?

Among the 5,259 homes in Ansonia 06401, it is bigger than 89% of them (2,576 ft² against a typical 1,486 ft²), its lot is bigger than 74% of them (0.34 ac against a typical 0.23 ac) and it is newer than 85% of them (1983 against a typical 1955). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 109 Tremont St, Ansonia, CT?

The 2025 property tax bill for 109 Tremont St, Ansonia, CT was $7,974. The county assessed it at $279,300.

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