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Single Family ResidenceResidential
$395,073$290 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $354,000 on Jul 6, 2022

21 RIVER TRL

SOUTHBURY, CT 06488
2
Beds
1
Baths
1,360 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.
0.59 ac
Lot SizeThe size of the land the home sits on, from county records.
1959
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$395K
$371K low$419K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$354,000 · Jul 6, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,870 (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.$201,230 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$75,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$126,230
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$201,230
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$140,861

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.60 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1981
Lot (acres)The size of the land the home sits on, from county records.0.59
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
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, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

M
Rochambeau Middle SchoolB+
Middle · Grades 6–8 · 0.3 mi
E
Gainfield Elementary SchoolA-
Elementary · Grades PK–5 · 0.5 mi
H
Pomperaug Regional High SchoolA
High · Grades 9–12 · 3.9 mi

District: Regional School District 15

Neighborhood · ZIP 06488These 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.100
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.75

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.20,305
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.511 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,384
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$123,508
Average tempThe average temperature here across a full year.50°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

21 River Trl 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 71% of homes in Southbury 06488
  • Smaller than 71% of homes in Southbury 06488
  • Has a smaller lot than 88% of homes in Southbury 06488
  • Older than 89% of homes in Southbury 06488

What homes are worth in Southbury 06488

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

This home
$189K$1M

This home is worth more than 37% of homes in Southbury 06488.

How it measures up in Southbury 06488

The dot is this home. The mark in the middle is the typical home in Southbury 06488.

Estimated value$395,073
CheaperTypical $472,035Pricier

Pricier than 37% of homes nearby

Price per ft²$290
CheaperTypical $257Pricier

Pricier than 71% of homes nearby

Living area1,360 ft²
SmallerTypical 1,639 ft²Bigger

Bigger than 29% of homes nearby

Lot size0.59 ac
SmallerTypical 1.62 acBigger

Bigger than 12% of homes nearby

Year built1959
OlderTypical 1974Newer

Newer than 11% of homes nearby

How 21 River Trl ranks against every home in each area.
MeasureThis homeSouthbury 06488Naugatuck Valley County
Estimated valuepricier than$395,07337% of homes49% of homes
Price per ft²pricier than$29071% of homes63% of homes
Living areabigger than1,360 ft²29% of homes42% of homes
Lot sizebigger than0.59 ac12% of homes64% of homes
Year builtnewer than195911% of homes38% of homes

About 21 River Trl

How much is 21 River Trl, Southbury, CT worth?

The TopHap Estimate for 21 River Trl, Southbury, CT is $395,073 as of Jul 14, 2026. The likely range is $370,685 to $419,461. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 River Trl, Southbury, CT last sell?

21 River Trl, Southbury, CT last sold on Jul 6, 2022 for $354,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 River Trl, Southbury, CT?

21 River Trl, Southbury, CT has 2 bedrooms, 1 bathrooms, 1,360 square feet of living space and a 0.59-acre lot.

When was 21 River Trl, Southbury, CT built?

21 River Trl, Southbury, CT was built in 1959, making it 67 years old. It is a ranch home. The building has 1 story.

What schools serve 21 River Trl, Southbury, CT?

21 River Trl, Southbury, CT is assigned to Rochambeau Middle School (middle), rated B+; Gainfield Elementary School (elementary), rated A-; Pomperaug Regional High School (high), rated A. All sit in Regional School District 15. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 River Trl, Southbury, CT compare to other homes in Southbury 06488?

Among the 8,285 homes in Southbury 06488, it is worth more than 37% of them ($395,073 against a typical $472,035), its price per square foot is higher than 71% of them ($290 against a typical $257), it is bigger than 29% of them (1,360 ft² against a typical 1,639 ft²), its lot is bigger than 12% of them (0.59 ac against a typical 1.62 ac) and it is newer than 11% of them (1959 against a typical 1974). Measured against all of Naugatuck Valley County, it is worth more than 49% 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 21 River Trl, Southbury, CT?

The 2025 property tax bill for 21 River Trl, Southbury, CT was $4,870. The county assessed it at $201,230.

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