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Single Family ResidenceResidential
$640,429$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 90How 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 $390,000 on Jul 29, 2014

109 PROSPECT ST

FARMINGDALE, NY 11735
4
Beds
1.5
Baths
1,243 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1929
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$640K
$575K low$706K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$390,000 · Jul 29, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,013 (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.$384 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$188
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$196
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$384
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$384,000

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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.16
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, Detached
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.Patio · 510 ft²

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 11735These 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.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.86

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.7%
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.33,412
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,932 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$129,849
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,978
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.57%

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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

109 Prospect St 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 88% of homes in Nassau County
  • Costs more per square foot than 66% of homes in Farmingdale 11735
  • Smaller than 84% of homes in Nassau County
  • Has a smaller lot than 68% of homes in Farmingdale 11735
  • Older than 92% of homes in Farmingdale 11735

What homes are worth in Farmingdale 11735

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

This home
$512K$1.2M

This home is worth more than 20% of homes in Farmingdale 11735.

How it measures up in Farmingdale 11735

The dot is this home. The mark in the middle is the typical home in Farmingdale 11735.

Estimated value$640,429
CheaperTypical $717,320Pricier

Pricier than 20% of homes nearby

Price per ft²$515
CheaperTypical $478Pricier

Pricier than 66% of homes nearby

Living area1,243 ft²
SmallerTypical 1,516 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.16 ac
SmallerTypical 0.16 acBigger

Bigger than 32% of homes nearby

Year built1929
OlderTypical 1955Newer

Newer than 8% of homes nearby

How 109 Prospect St ranks against every home in each area.
MeasureThis homeFarmingdale 11735Nassau County
Estimated valuepricier than$640,42920% of homes12% of homes
Price per ft²pricier than$51566% of homes50% of homes
Living areabigger than1,243 ft²25% of homes16% of homes
Lot sizebigger than0.16 ac32% of homes56% of homes
Year builtnewer than19298% of homes15% of homes

About 109 Prospect St

How much is 109 Prospect St, Farmingdale, NY worth?

The TopHap Estimate for 109 Prospect St, Farmingdale, NY is $640,429 as of Aug 30, 2026. The likely range is $574,837 to $706,021. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 109 Prospect St, Farmingdale, NY last sell?

109 Prospect St, Farmingdale, NY last sold on Jul 29, 2014 for $390,000, according to the county's recorded deed.

How big is 109 Prospect St, Farmingdale, NY?

109 Prospect St, Farmingdale, NY has 4 bedrooms, 1.5 bathrooms, 1,243 square feet of living space and a 0.16-acre lot.

When was 109 Prospect St, Farmingdale, NY built?

109 Prospect St, Farmingdale, NY was built in 1929, making it 97 years old. The building has 1 story.

How does 109 Prospect St, Farmingdale, NY compare to other homes in Farmingdale 11735?

Among the 8,983 homes in Farmingdale 11735, it is worth more than 20% of them ($640,429 against a typical $717,320), its price per square foot is higher than 66% of them ($515 against a typical $478), it is bigger than 25% of them (1,243 ft² against a typical 1,516 ft²), its lot is bigger than 32% of them (0.16 ac against a typical 0.16 ac) and it is newer than 8% of them (1929 against a typical 1955). Measured against all of Nassau County, it is worth more than 12% 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 109 Prospect St, Farmingdale, NY?

The 2025 property tax bill for 109 Prospect St, Farmingdale, NY was $9,013. The county assessed it at $384.

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