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Single Family ResidenceResidential
$373,031$328 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $210,000 on May 22, 2009

509 RIVERSIDE DR

NORTH GROSVENORDALE, CT 06255
3
Beds
2
Baths
1,138 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.
0.58 ac
Lot SizeThe size of the land the home sits on, from county records.
1997
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.

Valuation

$373K
$349K low$397K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$210,000 · May 22, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,463 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$234,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$34,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$200,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$137,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$164,430

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.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
12
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
54
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
91
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Raised Ranch
CountyNORTHEASTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.58
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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
Mary R. Fisher Elementary SchoolB-
Elementary · Grades PK–4 · 1.1 mi
M
Thompson Middle SchoolB-
Middle · Grades 5–8 · 1.1 mi
H
Tourtellotte Memorial High SchoolC+
High · Grades 9–12 · 1.1 mi

District: Thompson School District

Neighborhood · ZIP 06255These 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.73
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.7%
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.5,314
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.222 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,445
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,261
Average tempThe average temperature here across a full year.48°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.56%

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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

509 Riverside Dr 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 86% of homes in North Grosvenordale 06255
  • Smaller than 78% of homes in North Grosvenordale 06255
  • Has a smaller lot than 72% of homes in Northeastern Connecticut County
  • Newer than 86% of homes in North Grosvenordale 06255

What homes are worth in North Grosvenordale 06255

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

This home
$227K$663K

This home is worth more than 50% of homes in North Grosvenordale 06255.

How it measures up in North Grosvenordale 06255

The dot is this home. The mark in the middle is the typical home in North Grosvenordale 06255.

Estimated value$373,031
CheaperTypical $372,829Pricier

Pricier than 50% of homes nearby

Price per ft²$328
CheaperTypical $254Pricier

Pricier than 86% of homes nearby

Living area1,138 ft²
SmallerTypical 1,482 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.58 ac
SmallerTypical 1.2 acBigger

Bigger than 30% of homes nearby

Year built1997
OlderTypical 1968Newer

Newer than 86% of homes nearby

How 509 Riverside Dr ranks against every home in each area.
MeasureThis homeNorth Grosvenordale 06255Northeastern Connecticut County
Estimated valuepricier than$373,03150% of homes46% of homes
Price per ft²pricier than$32886% of homes82% of homes
Living areabigger than1,138 ft²22% of homes25% of homes
Lot sizebigger than0.58 ac30% of homes28% of homes
Year builtnewer than199786% of homes80% of homes

About 509 Riverside Dr

How much is 509 Riverside Dr, North Grosvenordale, CT worth?

The TopHap Estimate for 509 Riverside Dr, North Grosvenordale, CT is $373,031 as of Sep 24, 2026. The likely range is $348,598 to $397,464. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Riverside Dr, North Grosvenordale, CT last sell?

509 Riverside Dr, North Grosvenordale, CT last sold on May 22, 2009 for $210,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 509 Riverside Dr, North Grosvenordale, CT?

509 Riverside Dr, North Grosvenordale, CT has 3 bedrooms, 2 bathrooms, 1,138 square feet of living space and a 0.58-acre lot.

When was 509 Riverside Dr, North Grosvenordale, CT built?

509 Riverside Dr, North Grosvenordale, CT was built in 1997, making it 29 years old. It is a raised ranch home. The building has 1 story.

What schools serve 509 Riverside Dr, North Grosvenordale, CT?

509 Riverside Dr, North Grosvenordale, CT is assigned to Mary R. Fisher Elementary School (elementary), rated B-; Thompson Middle School (middle), rated B-; Tourtellotte Memorial High School (high), rated C+. All sit in Thompson School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Riverside Dr, North Grosvenordale, CT compare to other homes in North Grosvenordale 06255?

Among the 1,640 homes in North Grosvenordale 06255, it is worth more than 50% of them ($373,031 against a typical $372,829), its price per square foot is higher than 86% of them ($328 against a typical $254), it is bigger than 22% of them (1,138 ft² against a typical 1,482 ft²), its lot is bigger than 30% of them (0.58 ac against a typical 1.2 ac) and it is newer than 86% of them (1997 against a typical 1968). Measured against all of Northeastern Connecticut County, it is worth more than 46% 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 509 Riverside Dr, North Grosvenordale, CT?

The 2024 property tax bill for 509 Riverside Dr, North Grosvenordale, CT was $4,463. The county assessed it at $234,900.

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