Single Family ResidenceResidential
Last sold for $1,550,000 on May 29, 2007
16 RIVER LN
COS COB, CT 06807
4
Beds
2.5
Baths
2,396 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
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
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,550,000 · May 29, 2007
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,529 (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.$771,050 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$415,590
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$355,460
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$771,050
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$539,735
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.46
26
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
64
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.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.48%
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyWESTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.26
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
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, Attached
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(13)
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.
EMH
Cos Cob SchoolB
Elementary · Grades KG–5 · 0.2 mi
Central Middle SchoolA-
Middle · Grades 6–8 · 0.8 mi
Greenwich High SchoolA+
High · Grades 9–12 · 1.0 mi
District: Greenwich School District
Neighborhood · ZIP 06807These 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.54
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.103
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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
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.7,630
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,321 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$180,144
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$235,340
Average tempThe average temperature here across a full year.52°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%
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
16 River Ln 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.
- Has a smaller lot than 74% of homes in Western Connecticut County
- Newer than 84% of homes in Cos Cob 06807
How it measures up in Cos Cob 06807
The dot is this home. The mark in the middle is the typical home in Cos Cob 06807.
Living area2,396 ft²
SmallerTypical 2,388 ft²Bigger
Bigger than 51% of homes nearby
Lot size0.26 ac
SmallerTypical 0.29 acBigger
Bigger than 41% of homes nearby
Year built1988
OlderTypical 1964Newer
Newer than 84% of homes nearby
| Measure | This home | Cos Cob 06807 | Western Connecticut County |
|---|---|---|---|
| Living areabigger than | 2,396 ft² | 51% of homes | 62% of homes |
| Lot sizebigger than | 0.26 ac | 41% of homes | 26% of homes |
| Year builtnewer than | 1988 | 84% of homes | 80% of homes |
About 16 River Ln
When did 16 River Ln, Cos Cob, CT last sell?
16 River Ln, Cos Cob, CT last sold on May 29, 2007 for $1,550,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.
How big is 16 River Ln, Cos Cob, CT?
16 River Ln, Cos Cob, CT has 4 bedrooms, 2.5 bathrooms, 2,396 square feet of living space and a 0.26-acre lot.
When was 16 River Ln, Cos Cob, CT built?
16 River Ln, Cos Cob, CT was built in 1988, making it 38 years old. It is a colonial home. The building has 2 stories.
What schools serve 16 River Ln, Cos Cob, CT?
16 River Ln, Cos Cob, CT is assigned to Cos Cob School (elementary), rated B; Central Middle School (middle), rated A-; Greenwich High School (high), rated A+. All sit in Greenwich School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 16 River Ln, Cos Cob, CT compare to other homes in Cos Cob 06807?
Among the 2,396 homes in Cos Cob 06807, it is bigger than 51% of them (2,396 ft² against a typical 2,388 ft²), its lot is bigger than 41% of them (0.26 ac against a typical 0.29 ac) and it is newer than 84% of them (1988 against a typical 1964). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 16 River Ln, Cos Cob, CT?
The 2025 property tax bill for 16 River Ln, Cos Cob, CT was $9,529. The county assessed it at $771,050.
More homes on River Ln
- 8 River Ln$1.7M2 bd · 1.5 ba · 1,666 ft² · Sold $1.4M · Mar 2026
- 12 River Ln$2.5M4 bd · 2.5 ba · 2,653 ft² · Sold $2.2M · Jan 2025
- 7 River Ln2 bd · 2 ba · 1,198 ft² · Sold $1.3M · Nov 2024
- 1 River Ln$1.6M3 bd · 2 ba · 2,012 ft² · Sold $1.4M · Nov 2024
- 6 River Ln$1.9M3 bd · 2.5 ba · 2,009 ft² · Sold $2.7M · Jul 2021
- 14 River Ln$1.9M6 bd · 4.5 ba · 3,736 ft² · Sold $1.3M · Aug 2020
- 9 River Ln$1.4M3 bd · 2 ba · 1,646 ft² · Sold $998K · Nov 2018
- 10 River Ln$2.6M4 bd · 4.5 ba · 2,338 ft² · Sold $700K · Mar 2015
- 1 River Ln$1.9M3 bd · 3.5 ba · 2,329 ft² · Sold $713K · Jul 2012
- 2 River Ln$1.3M3 bd · 2.5 ba · 1,613 ft² · Sold $335K · Jan 2012
- 11 River Ln$1.7M3 bd · 3.5 ba · 2,009 ft² · Sold $997K · Jul 2004
- 3 River Ln$1.5M4 bd · 2.5 ba · 2,034 ft² · Sold $136K · Dec 2001
Closest homes
- 14 River Ln$1.9M79 ft · 6 bd · 4.5 ba · 3,736 ft² · Sold $1.3M · Aug 2020
- 12 River Ln$2.5M163 ft · 4 bd · 2.5 ba · 2,653 ft² · Sold $2.2M · Jan 2025
- 10 River Ln$2.6M237 ft · 4 bd · 4.5 ba · 2,338 ft² · Sold $700K · Mar 2015
- 70 River Rd$1.3M260 ft · 4 bd · 2.5 ba · 2,566 ft² · Sold Jan 1900
- 8 River Ln$1.7M291 ft · 2 bd · 1.5 ba · 1,666 ft² · Sold $1.4M · Mar 2026
- 9 River Ln$1.4M296 ft · 3 bd · 2 ba · 1,646 ft² · Sold $998K · Nov 2018
- 511 E Putnam Ave311 ft · 5 bd · 5 ba · 3,179 ft² · Sold Jan 1900
- 6 River Ln$1.9M350 ft · 3 bd · 2.5 ba · 2,009 ft² · Sold $2.7M · Jul 2021
More homes in Cos Cob 06807
- 12 Old Post Rd$2.1M4 bd · 2.5 ba · 3,034 ft² · Sold $2M · Aug 2026
- 15 River Rd$914K2 bd · 2 ba · 1,270 ft² · Sold $914K · Aug 2026
- 9 Walnut St0.52 ac · Sold $1.4M · Aug 2026
- 106 Orchard St$2.5M5 bd · 4.5 ba · 2,939 ft² · Sold $2.5M · Jul 2026
- 681 River Rd$2.6M4 bd · 4.5 ba · 3,826 ft² · Sold $2.4M · Jul 2026
- 500 River Rd$1.1M2 bd · 2 ba · 1,830 ft² · Sold $1.2M · Jul 2026
- 14 Pond Pl$2.7M3 bd · 2.5 ba · 2,082 ft² · Sold $3M · Jul 2026
- 441 Cognewaugh Rd$1.8M4 bd · 3 ba · 2,899 ft² · Sold $2M · Jul 2026
- 86 Dandy Dr$2M4 bd · 3.5 ba · 3,546 ft² · Sold $1.9M · Jul 2026
- 27 Cognewaugh Rd$3.8M4 bd · 5 ba · 4,916 ft² · Sold $4M · Jul 2026
- 50 Valleywood Rd$1.2M4 bd · 2 ba · 1,954 ft² · Sold $1.2M · Jul 2026
- 13 Field Rd4 bd · 2 ba · 1,662 ft² · Sold $1.5M · Jul 2026
Assigned schools
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