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Single Family ResidenceResidential
$777,649$432 / 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 Sep 24, 2026
Last sold for $565,000 on Jan 12, 2024

21 ILLINOIS AVE

BRONXVILLE, NY 10708
3
Beds
2
Baths
1,800 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.
1921
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.

Valuation

$778K
$740K low$816K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$565,000 · Jan 12, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,486 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$8,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$5,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$8,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$476,744

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.41
1
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.
67
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
83
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
49
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.Colonial
CountyWESTCHESTER
Lot (acres)The size of the land the home sits on, from county records.0.11
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Neighborhood · ZIP 10708These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.117
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.115

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
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.21,885
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,241 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$148,722
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$204,972
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.55%

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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 Illinois 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 85% of homes in Sunnyside Park
  • Costs less per square foot than 92% of homes in Bronxville 10708
  • Smaller than 74% of homes in Bronxville 10708
  • Has a smaller lot than 75% of homes in Westchester County
  • Older than 86% of homes in Westchester County

What homes are worth in Bronxville 10708

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

This home
$370K$5.1M

This home is worth more than 24% of homes in Bronxville 10708.

How it measures up in Bronxville 10708

The dot is this home. The mark in the middle is the typical home in Bronxville 10708.

Estimated value$777,649
CheaperTypical $1,254,114Pricier

Pricier than 24% of homes nearby

Price per ft²$432
CheaperTypical $671Pricier

Pricier than 8% of homes nearby

Living area1,800 ft²
SmallerTypical 2,544 ft²Bigger

Bigger than 26% of homes nearby

Lot size0.11 ac
SmallerTypical 0.18 acBigger

Bigger than 32% of homes nearby

Year built1921
OlderTypical 1929Newer

Newer than 24% of homes nearby

How 21 Illinois Ave ranks against every home in each area.
MeasureThis homeSunnyside ParkBronxville 10708Westchester County
Estimated valuepricier than$777,64915% of homes24% of homes40% of homes
Price per ft²pricier than$43211% of homes8% of homes26% of homes
Living areabigger than1,800 ft²31% of homes26% of homes39% of homes
Lot sizebigger than0.11 ac32% of homes32% of homes25% of homes
Year builtnewer than192118% of homes24% of homes14% of homes

About 21 Illinois Ave

How much is 21 Illinois Ave, Bronxville, NY worth?

The TopHap Estimate for 21 Illinois Ave, Bronxville, NY is $777,649 as of Sep 24, 2026. The likely range is $739,601 to $815,697. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Illinois Ave, Bronxville, NY last sell?

21 Illinois Ave, Bronxville, NY last sold on Jan 12, 2024 for $565,000, according to the county's recorded deed.

How big is 21 Illinois Ave, Bronxville, NY?

21 Illinois Ave, Bronxville, NY has 3 bedrooms, 2 bathrooms, 1,800 square feet of living space and a 0.11-acre lot.

When was 21 Illinois Ave, Bronxville, NY built?

21 Illinois Ave, Bronxville, NY was built in 1921, making it 105 years old. It is a colonial home. The building has 2 stories.

How does 21 Illinois Ave, Bronxville, NY compare to other homes in Bronxville 10708?

Among the 4,458 homes in Bronxville 10708, it is worth more than 24% of them ($777,649 against a typical $1,254,114), its price per square foot is higher than 8% of them ($432 against a typical $671), it is bigger than 26% of them (1,800 ft² against a typical 2,544 ft²), its lot is bigger than 32% of them (0.11 ac against a typical 0.18 ac) and it is newer than 24% of them (1921 against a typical 1929). Measured against all of Westchester County, it is worth more than 40% 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 Illinois Ave, Bronxville, NY?

The 2026 property tax bill for 21 Illinois Ave, Bronxville, NY was $1,486. The county assessed it at $8,200.

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