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CondominiumResidential
$1,392,866$1,026 / 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

306 RIVER W

GREENWICH, CT 06831
2
Beds
2
Baths
1,357 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.
2022
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.4M
$1.3M low$1.5M high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$492,866
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$394,293
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.67%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$900,000
RIVER RD DEV LLC · R · recorded Mar 23, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,574 (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.$1,098,300 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,098,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,098,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$768,810

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.64
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
65
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
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.197 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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyWESTERN CONNECTICUT
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Glenville SchoolA+
Elementary · Grades KG–5 · 0.5 mi
M
Western Middle SchoolA
Middle · Grades 6–8 · 2.0 mi
H
Greenwich High SchoolA+
High · Grades 9–12 · 2.9 mi

District: Greenwich School District

Neighborhood · ZIP 06831These 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.76
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 100.105

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.17,909
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.648 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$210,519
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$312,404
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

306 River W 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.

  • Worth more than 74% of homes in Western Connecticut County
  • Costs more per square foot than 96% of homes in Western Connecticut County
  • Smaller than 93% of homes in Greenwich 06831
  • Among the newest homes in Greenwich 06831

What homes are worth in Greenwich 06831

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

This home
$659K$8M

This home is worth more than 32% of homes in Greenwich 06831.

How it measures up in Greenwich 06831

The dot is this home. The mark in the middle is the typical home in Greenwich 06831.

Estimated value$1,392,866
CheaperTypical $2,046,664Pricier

Pricier than 32% of homes nearby

Price per ft²$1026
CheaperTypical $666Pricier

Pricier than 92% of homes nearby

Living area1,357 ft²
SmallerTypical 2,984 ft²Bigger

Bigger than 7% of homes nearby

Year built2022
OlderTypical 1968Newer

Newer than almost all homes nearby

How 306 River W ranks against every home in each area.
MeasureThis homeGreenwich 06831Western Connecticut County
Estimated valuepricier than$1,392,86632% of homes74% of homes
Price per ft²pricier than$102692% of homes96% of homes
Living areabigger than1,357 ft²7% of homes26% of homes
Year builtnewer than2022almost all homesalmost all homes

About 306 River W

How much is 306 River W, Greenwich, CT worth?

The TopHap Estimate for 306 River W, Greenwich, CT is $1,392,866 as of Jul 14, 2026. The likely range is $1,302,965 to $1,482,767. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 306 River W, Greenwich, CT last sell?

306 River W, Greenwich, CT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 306 River W, Greenwich, CT?

306 River W, Greenwich, CT has 2 bedrooms, 2 bathrooms and 1,357 square feet of living space.

When was 306 River W, Greenwich, CT built?

306 River W, Greenwich, CT was built in 2022, making it 4 years old. It is a condo/apartment home. The building has 1 story.

What schools serve 306 River W, Greenwich, CT?

306 River W, Greenwich, CT is assigned to Glenville School (elementary), rated A+; Western 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 306 River W, Greenwich, CT compare to other homes in Greenwich 06831?

Among the 5,196 homes in Greenwich 06831, it is worth more than 32% of them ($1,392,866 against a typical $2,046,664), its price per square foot is higher than 92% of them ($1026 against a typical $666), it is bigger than 7% of them (1,357 ft² against a typical 2,984 ft²) and it is newer than almost all of them (2022 against a typical 1968). Measured against all of Western Connecticut County, it is worth more than 74% 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 306 River W, Greenwich, CT?

The 2025 property tax bill for 306 River W, Greenwich, CT was $13,574. The county assessed it at $1,098,300.

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