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Single Family ResidenceResidential
$764,102$449 / 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 $450,000 on Sep 17, 2004

21 KENNETH AVE

NORTH BELLMORE, NY 11710
1
Baths
1,700 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1946
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

$764K
$709K low$820K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$450,000 · Sep 17, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,276 (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.$458 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$163
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$295
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$470
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$458,000

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.29
1
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.
56
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
82
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
1
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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.Cape Cod
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.12
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
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 · 300 ft²Patio · 300 ft²Porch · 348 ft²

Transaction History(3)

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.

H
Wellington C Mepham High SchoolA-
High · Grades 9–12 · 0.1 mi
M
Grand Avenue Middle SchoolA+
Middle · Grades 7–8 · 0.5 mi

District: Bellmore-Merrick Central High School District

Neighborhood · ZIP 11710These 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.55
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 100.85

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.36,273
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,326 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$168,445
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$193,829
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Owner Tools

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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

21 Kenneth 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.

  • Costs less per square foot than 74% of homes in Nassau County
  • Has a smaller lot than 94% of homes in North Bellmore
  • Older than 86% of homes in North Bellmore

What homes are worth in Bellmore 11710

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

This home
$540K$1.4M

This home is worth more than 42% of homes in Bellmore 11710.

How it measures up in Bellmore 11710

The dot is this home. The mark in the middle is the typical home in Bellmore 11710.

Estimated value$764,102
CheaperTypical $795,356Pricier

Pricier than 42% of homes nearby

Price per ft²$449
CheaperTypical $475Pricier

Pricier than 39% of homes nearby

Living area1,700 ft²
SmallerTypical 1,718 ft²Bigger

Bigger than 49% of homes nearby

Lot size0.11 ac
SmallerTypical 0.15 acBigger

Bigger than 9% of homes nearby

Year built1946
OlderTypical 1956Newer

Newer than 24% of homes nearby

How 21 Kenneth Ave ranks against every home in each area.
MeasureThis homeNorth BellmoreBellmore 11710Nassau County
Estimated valuepricier than$764,10242% of homes42% of homes37% of homes
Price per ft²pricier than$44936% of homes39% of homes26% of homes
Living areabigger than1,700 ft²53% of homes49% of homes48% of homes
Lot sizebigger than0.11 ac6% of homes9% of homes16% of homes
Year builtnewer than194614% of homes24% of homes27% of homes

About 21 Kenneth Ave

How much is 21 Kenneth Ave, North Bellmore, NY worth?

The TopHap Estimate for 21 Kenneth Ave, North Bellmore, NY is $764,102 as of Sep 24, 2026. The likely range is $708,686 to $819,518. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Kenneth Ave, North Bellmore, NY last sell?

21 Kenneth Ave, North Bellmore, NY last sold on Sep 17, 2004 for $450,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Kenneth Ave, North Bellmore, NY?

21 Kenneth Ave, North Bellmore, NY has 1 bathrooms, 1,700 square feet of living space and a 0.12-acre lot.

When was 21 Kenneth Ave, North Bellmore, NY built?

21 Kenneth Ave, North Bellmore, NY was built in 1946, making it 80 years old. It is a cape cod home. The building has 1 story.

What schools serve 21 Kenneth Ave, North Bellmore, NY?

21 Kenneth Ave, North Bellmore, NY is assigned to Wellington C Mepham High School (high), rated A-; Grand Avenue Middle School (middle), rated A+. All sit in Bellmore-Merrick Central High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Kenneth Ave, North Bellmore, NY compare to other homes in Bellmore 11710?

Among the 10,994 homes in Bellmore 11710, it is worth more than 42% of them ($764,102 against a typical $795,356), its price per square foot is higher than 39% of them ($449 against a typical $475), it is bigger than 49% of them (1,700 ft² against a typical 1,718 ft²), its lot is bigger than 9% of them (0.11 ac against a typical 0.15 ac) and it is newer than 24% of them (1946 against a typical 1956). Measured against all of Nassau County, it is worth more than 37% 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 21 Kenneth Ave, North Bellmore, NY?

The 2025 property tax bill for 21 Kenneth Ave, North Bellmore, NY was $10,276. The county assessed it at $458.

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