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Single Family ResidenceResidential
$929,010$553 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $443,500 on Sep 11, 2018

1487 ROUND SWAMP RD

OLD BETHPAGE, NY 11804
2
Baths
1,679 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.
0.25 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$929K
$849K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$443,500 · Sep 11, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$16,160 (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.$571 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$305
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$266
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$596
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$571,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.5 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Ranch
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.25
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
FireplaceWhether the home has a fireplace, and what kind.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.Yes
ViewThe type of view from the property, or another feature of the site that affects value.Major Strip
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 360 ft²Patio · 360 ft²Porch · 138 ft²

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.

H
Plainview-Old Bethpage John F. Kennedy High SchoolA
High · Grades 9–12 · 0.8 mi
E
Old Bethpage Elementary SchoolB+
Elementary · Grades KG–4 · 0.9 mi
M
Howard B. Mattlin Middle SchoolA-
Middle · Grades 5–8 · 1.0 mi

District: Plainview-Old Bethpage Central School District

Neighborhood · ZIP 11804These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.89

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.85%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
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.5,721
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,911 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$177,890
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$167,799
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%

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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

1487 Round Swamp Rd 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 69% of homes in Old Bethpage
  • Has a bigger lot than 86% of homes in Nassau County
  • Newer than 78% of homes in Old Bethpage 11804

What homes are worth in Old Bethpage 11804

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

This home
$702K$1.7M

This home is worth more than 31% of homes in Old Bethpage 11804.

How it measures up in Old Bethpage 11804

The dot is this home. The mark in the middle is the typical home in Old Bethpage 11804.

Estimated value$929,010
CheaperTypical $1,005,018Pricier

Pricier than 31% of homes nearby

Price per ft²$553
CheaperTypical $562Pricier

Pricier than 44% of homes nearby

Living area1,679 ft²
SmallerTypical 1,834 ft²Bigger

Bigger than 37% of homes nearby

Lot size0.25 ac
SmallerTypical 0.23 acBigger

Bigger than 82% of homes nearby

Year built1961
OlderTypical 1958Newer

Newer than 78% of homes nearby

How 1487 Round Swamp Rd ranks against every home in each area.
MeasureThis homeOld BethpageOld Bethpage 11804Nassau County
Estimated valuepricier than$929,01031% of homes31% of homes64% of homes
Price per ft²pricier than$55344% of homes44% of homes62% of homes
Living areabigger than1,679 ft²42% of homes37% of homes47% of homes
Lot sizebigger than0.25 ac83% of homes82% of homes86% of homes
Year builtnewer than196145% of homes78% of homes78% of homes

About 1487 Round Swamp Rd

How much is 1487 Round Swamp Rd, Old Bethpage, NY worth?

The TopHap Estimate for 1487 Round Swamp Rd, Old Bethpage, NY is $929,010 as of Aug 30, 2026. The likely range is $848,983 to $1,009,037. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1487 Round Swamp Rd, Old Bethpage, NY last sell?

1487 Round Swamp Rd, Old Bethpage, NY last sold on Sep 11, 2018 for $443,500, according to the county's recorded deed.

How big is 1487 Round Swamp Rd, Old Bethpage, NY?

1487 Round Swamp Rd, Old Bethpage, NY has 2 bathrooms, 1,679 square feet of living space and a 0.25-acre lot.

When was 1487 Round Swamp Rd, Old Bethpage, NY built?

1487 Round Swamp Rd, Old Bethpage, NY was built in 1961, making it 65 years old. It is a ranch home. The building has 1 story.

What schools serve 1487 Round Swamp Rd, Old Bethpage, NY?

1487 Round Swamp Rd, Old Bethpage, NY is assigned to Plainview-Old Bethpage John F. Kennedy High School (high), rated A; Old Bethpage Elementary School (elementary), rated B+; Howard B. Mattlin Middle School (middle), rated A-. All sit in Plainview-Old Bethpage Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1487 Round Swamp Rd, Old Bethpage, NY compare to other homes in Old Bethpage 11804?

Among the 1,533 homes in Old Bethpage 11804, it is worth more than 31% of them ($929,010 against a typical $1,005,018), its price per square foot is higher than 44% of them ($553 against a typical $562), it is bigger than 37% of them (1,679 ft² against a typical 1,834 ft²), its lot is bigger than 82% of them (0.25 ac against a typical 0.23 ac) and it is newer than 78% of them (1961 against a typical 1958). Measured against all of Nassau County, it is worth more than 64% 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 1487 Round Swamp Rd, Old Bethpage, NY?

The 2025 property tax bill for 1487 Round Swamp Rd, Old Bethpage, NY was $16,160. The county assessed it at $571.

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