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Single Family ResidenceResidential
$590,168$343 / 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 $174,000 on Jun 29, 1999

509 WILLOW AVE

PISCATAWAY, NJ 08854
0
Baths
1,722 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1953
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$590K
$549K low$631K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$174,000 · Jun 29, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,001 (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.$473,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$312,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$161,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$443,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$473,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMIDDLESEX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1954
Lot (acres)The size of the land the home sits on, from county records.0.28
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Knollwood Elementary SchoolB+
Elementary · Grades KG–3 · 0.2 mi
M
Conackamack Middle SchoolB
Middle · Grades 6–8 · 0.5 mi
H
Piscataway High SchoolC
High · Grades 9–12 · 0.8 mi

District: Piscataway Township School District

Neighborhood · ZIP 08854These 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.57
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.103

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.63,382
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,298 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,616
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,705
Average tempThe average temperature here across a full year.52°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

509 Willow 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.

  • Has a bigger lot than 79% of homes in Middlesex County
  • Older than 84% of homes in Piscataway 08854

What homes are worth in Piscataway 08854

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

This home
$343K$1M

This home is worth more than 52% of homes in Piscataway 08854.

How it measures up in Piscataway 08854

The dot is this home. The mark in the middle is the typical home in Piscataway 08854.

Estimated value$590,168
CheaperTypical $583,209Pricier

Pricier than 52% of homes nearby

Price per ft²$343
CheaperTypical $357Pricier

Pricier than 38% of homes nearby

Living area1,722 ft²
SmallerTypical 1,632 ft²Bigger

Bigger than 58% of homes nearby

Lot size0.28 ac
SmallerTypical 0.23 acBigger

Bigger than 68% of homes nearby

Year built1953
OlderTypical 1973Newer

Newer than 16% of homes nearby

How 509 Willow Ave ranks against every home in each area.
MeasureThis homePiscataway 08854Middlesex County
Estimated valuepricier than$590,16852% of homes52% of homes
Price per ft²pricier than$34338% of homes40% of homes
Living areabigger than1,722 ft²58% of homes56% of homes
Lot sizebigger than0.28 ac68% of homes79% of homes
Year builtnewer than195316% of homes29% of homes

About 509 Willow Ave

How much is 509 Willow Ave, Piscataway, NJ worth?

The TopHap Estimate for 509 Willow Ave, Piscataway, NJ is $590,168 as of Sep 24, 2026. The likely range is $549,217 to $631,119. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Willow Ave, Piscataway, NJ last sell?

509 Willow Ave, Piscataway, NJ last sold on Jun 29, 1999 for $174,000, according to the county's recorded deed.

How big is 509 Willow Ave, Piscataway, NJ?

509 Willow Ave, Piscataway, NJ has 1,722 square feet of living space and a 0.28-acre lot.

When was 509 Willow Ave, Piscataway, NJ built?

509 Willow Ave, Piscataway, NJ was built in 1953, making it 73 years old. The building has 2 stories.

What schools serve 509 Willow Ave, Piscataway, NJ?

509 Willow Ave, Piscataway, NJ is assigned to Knollwood Elementary School (elementary), rated B+; Conackamack Middle School (middle), rated B; Piscataway High School (high), rated C. All sit in Piscataway Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Willow Ave, Piscataway, NJ compare to other homes in Piscataway 08854?

Among the 13,708 homes in Piscataway 08854, it is worth more than 52% of them ($590,168 against a typical $583,209), its price per square foot is higher than 38% of them ($343 against a typical $357), it is bigger than 58% of them (1,722 ft² against a typical 1,632 ft²), its lot is bigger than 68% of them (0.28 ac against a typical 0.23 ac) and it is newer than 16% of them (1953 against a typical 1973). Measured against all of Middlesex County, it is worth more than 52% 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 Willow Ave, Piscataway, NJ?

The 2025 property tax bill for 509 Willow Ave, Piscataway, NJ was $8,001. The county assessed it at $473,700.

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