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Single Family ResidenceResidential
$352,899$206 / 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 92How 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 $350,000 on Jul 24, 2026

321 SPRING ST

NAUGATUCK, CT 06770
3
Beds
1.5
Baths
1,714 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1992
Year BuiltThe year the home was originally built, according to county records.
2
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

$353K
$326K low$380K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$350,000 · Jul 24, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,083 (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.$178,010 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$28,840
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$149,170
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$178,010
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$254,300

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.Contemporary
CountyNAUGATUCK VALLEY
Lot (acres)The size of the land the home sits on, from county records.0.19
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.Shingle
HeatingThe type of heating system in the home.Hot Water
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(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.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Hop Brook Elementary SchoolC-
Elementary · Grades KG–4 · 0.4 mi
H
Naugatuck High SchoolD
High · Grades 9–12 · 1.4 mi
M
City Hill Middle SchoolC-
Middle · Grades 7–8 · 1.4 mi

District: Naugatuck School District

Neighborhood · ZIP 06770These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.68

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.32,092
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,962 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,312
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,599
Average tempThe average temperature here across a full year.49°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

321 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.

  • Costs less per square foot than 83% of homes in Naugatuck Valley County
  • Bigger than 72% of homes in Naugatuck 06770
  • Has a smaller lot than 80% of homes in Naugatuck Valley County
  • Newer than 86% of homes in Naugatuck 06770

What homes are worth in Naugatuck 06770

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

This home
$185K$571K

This home is worth more than 53% of homes in Naugatuck 06770.

How it measures up in Naugatuck 06770

The dot is this home. The mark in the middle is the typical home in Naugatuck 06770.

Estimated value$352,899
CheaperTypical $348,665Pricier

Pricier than 53% of homes nearby

Price per ft²$206
CheaperTypical $246Pricier

Pricier than 20% of homes nearby

Living area1,714 ft²
SmallerTypical 1,332 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.19 ac
SmallerTypical 0.29 acBigger

Bigger than 21% of homes nearby

Year built1992
OlderTypical 1969Newer

Newer than 86% of homes nearby

How 321 Spring St ranks against every home in each area.
MeasureThis homeNaugatuck 06770Naugatuck Valley County
Estimated valuepricier than$352,89953% of homes40% of homes
Price per ft²pricier than$20620% of homes17% of homes
Living areabigger than1,714 ft²72% of homes61% of homes
Lot sizebigger than0.19 ac21% of homes20% of homes
Year builtnewer than199286% of homes83% of homes

About 321 Spring St

How much is 321 Spring St, Naugatuck, CT worth?

The TopHap Estimate for 321 Spring St, Naugatuck, CT is $352,899 as of Sep 24, 2026. The likely range is $325,556 to $380,242. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 Spring St, Naugatuck, CT last sell?

321 Spring St, Naugatuck, CT last sold on Jul 24, 2026 for $350,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 321 Spring St, Naugatuck, CT?

321 Spring St, Naugatuck, CT has 3 bedrooms, 1.5 bathrooms, 1,714 square feet of living space and a 0.19-acre lot.

When was 321 Spring St, Naugatuck, CT built?

321 Spring St, Naugatuck, CT was built in 1992, making it 34 years old. It is a contemporary home. The building has 2 stories.

What schools serve 321 Spring St, Naugatuck, CT?

321 Spring St, Naugatuck, CT is assigned to Hop Brook Elementary School (elementary), rated C-; Naugatuck High School (high), rated D; City Hill Middle School (middle), rated C-. All sit in Naugatuck School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 Spring St, Naugatuck, CT compare to other homes in Naugatuck 06770?

Among the 9,948 homes in Naugatuck 06770, it is worth more than 53% of them ($352,899 against a typical $348,665), its price per square foot is higher than 20% of them ($206 against a typical $246), it is bigger than 72% of them (1,714 ft² against a typical 1,332 ft²), its lot is bigger than 21% of them (0.19 ac against a typical 0.29 ac) and it is newer than 86% of them (1992 against a typical 1969). Measured against all of Naugatuck Valley County, it is worth more than 40% 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 321 Spring St, Naugatuck, CT?

The 2025 property tax bill for 321 Spring St, Naugatuck, CT was $7,083. The county assessed it at $178,010.

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Assigned schools

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