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CondominiumResidential
$1,156,240$515 / 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 95How 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 $899,000 on Apr 9, 2007

70 RIVERDALE AVE

GREENWICH, CT 06831
Building report
2
Beds
2.5
Baths
2,245 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.
2007
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.2M
$1.1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$899,000 · Apr 9, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,852 (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.$554,400 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$554,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$554,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$388,080

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyWESTERN CONNECTICUT
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
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(2)

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
Western Middle SchoolA
Middle · Grades 6–8 · 0.6 mi
E
Glenville SchoolA+
Elementary · Grades KG–5 · 1.7 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%

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

70 Riverdale Ave 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 less than 77% of homes in Greenwich 06831
  • Costs less per square foot than 86% of homes in Greenwich 06831
  • Smaller than 66% of homes in Greenwich 06831
  • Newer than 94% of 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
$713K$8.2M

This home is worth more than 23% 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$1,156,240
CheaperTypical $2,075,471Pricier

Pricier than 23% of homes nearby

Price per ft²$515
CheaperTypical $666Pricier

Pricier than 14% of homes nearby

Living area2,245 ft²
SmallerTypical 2,945 ft²Bigger

Bigger than 34% of homes nearby

Year built2007
OlderTypical 1968Newer

Newer than 94% of homes nearby

How 70 Riverdale Ave ranks against every home in each area.
MeasureThis homeGreenwich 06831Western Connecticut County
Estimated valuepricier than$1,156,24023% of homes68% of homes
Price per ft²pricier than$51514% of homes69% of homes
Living areabigger than2,245 ft²34% of homes59% of homes
Year builtnewer than200794% of homes94% of homes

About 70 Riverdale Ave

How much is 70 Riverdale Ave, Greenwich, CT worth?

The TopHap Estimate for 70 Riverdale Ave, Greenwich, CT is $1,156,240 as of Jul 14, 2026. The likely range is $1,094,085 to $1,218,395. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 70 Riverdale Ave, Greenwich, CT last sell?

70 Riverdale Ave, Greenwich, CT last sold on Apr 9, 2007 for $899,000, according to the county's recorded deed.

How big is 70 Riverdale Ave, Greenwich, CT?

70 Riverdale Ave, Greenwich, CT has 2 bedrooms, 2.5 bathrooms and 2,245 square feet of living space.

When was 70 Riverdale Ave, Greenwich, CT built?

70 Riverdale Ave, Greenwich, CT was built in 2007, making it 19 years old. The building has 2 stories.

What schools serve 70 Riverdale Ave, Greenwich, CT?

70 Riverdale Ave, Greenwich, CT is assigned to Western Middle School (middle), rated A; Glenville School (elementary), 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 70 Riverdale Ave, Greenwich, CT compare to other homes in Greenwich 06831?

Among the 5,196 homes in Greenwich 06831, it is worth more than 23% of them ($1,156,240 against a typical $2,075,471), its price per square foot is higher than 14% of them ($515 against a typical $666), it is bigger than 34% of them (2,245 ft² against a typical 2,945 ft²) and it is newer than 94% of them (2007 against a typical 1968). Measured against all of Western Connecticut County, it is worth more than 68% 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 70 Riverdale Ave, Greenwich, CT?

The 2025 property tax bill for 70 Riverdale Ave, Greenwich, CT was $6,852. The county assessed it at $554,400.

More homes on Riverdale Ave

Closest homes

More homes in Greenwich 06831

Assigned schools

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