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Duplex (2 Units, Any Combination)Residential
Last sold for $1,085,000 on Jul 25, 2023

4 RIVER ST

NEW CANAAN, CT 06840
6
Beds
3 / 2
Baths
2,000 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
12
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,085,000 · Jul 25, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,195 (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.$730,660 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$464,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$265,860
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$730,660
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$511,462

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.55
68
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.38 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.0.2 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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyWESTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.18
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.Baseboard
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(4)

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
East SchoolA+
Elementary · Grades KG–4 · 0.6 mi
M
Saxe Middle SchoolA+
Middle · Grades 5–8 · 1.4 mi
H
New Canaan High SchoolA+
High · Grades 9–12 · 1.6 mi

District: New Canaan School District

Neighborhood · ZIP 06840These 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.58
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 100.94

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.43%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.23,002
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,022 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$236,636
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$377,925
Average tempThe average temperature here across a full year.51°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

4 River 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.

  • Smaller than 77% of homes in New Canaan 06840
  • Has a smaller lot than 97% of homes in New Canaan 06840

How it measures up in New Canaan 06840

The dot is this home. The mark in the middle is the typical home in New Canaan 06840.

Living area2,000 ft²
SmallerTypical 3,206 ft²Bigger

Bigger than 23% of homes nearby

Lot size0.18 ac
SmallerTypical 1.99 acBigger

Bigger than 3% of homes nearby

Year built1970
OlderTypical 1966Newer

Newer than 56% of homes nearby

How 4 River St ranks against every home in each area.
MeasureThis homeNew Canaan 06840Western Connecticut County
Living areabigger than2,000 ft²23% of homes51% of homes
Lot sizebigger than0.18 ac3% of homes15% of homes
Year builtnewer than197056% of homes55% of homes

About 4 River St

When did 4 River St, New Canaan, CT last sell?

4 River St, New Canaan, CT last sold on Jul 25, 2023 for $1,085,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 4 River St, New Canaan, CT?

4 River St, New Canaan, CT has 6 bedrooms, 3 bathrooms, 2,000 square feet of living space and a 0.18-acre lot.

When was 4 River St, New Canaan, CT built?

4 River St, New Canaan, CT was built in 1970, making it 56 years old. It is a duplex single home. The building has 2 stories.

What schools serve 4 River St, New Canaan, CT?

4 River St, New Canaan, CT is assigned to East School (elementary), rated A+; Saxe Middle School (middle), rated A+; New Canaan High School (high), rated A+. All sit in New Canaan School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4 River St, New Canaan, CT compare to other homes in New Canaan 06840?

Among the 6,751 homes in New Canaan 06840, it is bigger than 23% of them (2,000 ft² against a typical 3,206 ft²), its lot is bigger than 3% of them (0.18 ac against a typical 1.99 ac) and it is newer than 56% of them (1970 against a typical 1966). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 4 River St, New Canaan, CT?

The 2025 property tax bill for 4 River St, New Canaan, CT was $12,195. The county assessed it at $730,660.

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