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Single Family ResidenceResidential
$535,121$424 / 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 Aug 30, 2026
Last sold for $265,000 on Oct 3, 2018

521 WILLOW AVE

ROSELLE PARK, NJ 07204
0
Baths
1,263 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.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$535K
$511K low$559K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$265,000 · Oct 3, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,887 (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.$241,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$125,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$116,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$241,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$241,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyUNION
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)
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

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.

Foreclosure Filings(1)

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

E
Ernest L. Finizio Aldene Elementary SchoolB
Elementary · Grades PK–5 · 0.1 mi
H
Roselle Park High SchoolB-
High · Grades 9–12 · 0.3 mi
M
Roselle Park Middle SchoolB-
Middle · Grades 6–8 · 0.6 mi

District: Roselle Park Borough School District

Neighborhood · ZIP 07204These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.14,215
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,542 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,523
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,639
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

521 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.

  • Worth less than 74% of homes in Union County
  • Costs more per square foot than 86% of homes in Roselle Park 07204
  • Smaller than 79% of homes in Union County
  • Has a smaller lot than 73% of homes in Union County
  • Older than 92% of homes in Union County

What homes are worth in Roselle Park 07204

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

This home
$277K$838K

This home is worth more than 31% of homes in Roselle Park 07204.

How it measures up in Roselle Park 07204

The dot is this home. The mark in the middle is the typical home in Roselle Park 07204.

Estimated value$535,121
CheaperTypical $567,104Pricier

Pricier than 31% of homes nearby

Price per ft²$424
CheaperTypical $359Pricier

Pricier than 86% of homes nearby

Living area1,263 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.11 ac
SmallerTypical 0.11 acBigger

Bigger than 46% of homes nearby

Year built1910
OlderTypical 1930Newer

Newer than 11% of homes nearby

How 521 Willow Ave ranks against every home in each area.
MeasureThis homeRoselle Park 07204Union County
Estimated valuepricier than$535,12131% of homes26% of homes
Price per ft²pricier than$42486% of homes57% of homes
Living areabigger than1,263 ft²22% of homes21% of homes
Lot sizebigger than0.11 ac46% of homes27% of homes
Year builtnewer than191011% of homes8% of homes

About 521 Willow Ave

How much is 521 Willow Ave, Roselle Park, NJ worth?

The TopHap Estimate for 521 Willow Ave, Roselle Park, NJ is $535,121 as of Aug 30, 2026. The likely range is $510,897 to $559,345. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Willow Ave, Roselle Park, NJ last sell?

521 Willow Ave, Roselle Park, NJ last sold on Oct 3, 2018 for $265,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 521 Willow Ave, Roselle Park, NJ?

521 Willow Ave, Roselle Park, NJ has 1,263 square feet of living space and a 0.12-acre lot.

When was 521 Willow Ave, Roselle Park, NJ built?

521 Willow Ave, Roselle Park, NJ was built in 1910, making it 116 years old. The building has 2 stories.

What schools serve 521 Willow Ave, Roselle Park, NJ?

521 Willow Ave, Roselle Park, NJ is assigned to Ernest L. Finizio Aldene Elementary School (elementary), rated B; Roselle Park High School (high), rated B-; Roselle Park Middle School (middle), rated B-. All sit in Roselle Park Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Willow Ave, Roselle Park, NJ compare to other homes in Roselle Park 07204?

Among the 3,363 homes in Roselle Park 07204, it is worth more than 31% of them ($535,121 against a typical $567,104), its price per square foot is higher than 86% of them ($424 against a typical $359), it is bigger than 22% of them (1,263 ft² against a typical 1,568 ft²), its lot is bigger than 46% of them (0.11 ac against a typical 0.11 ac) and it is newer than 11% of them (1910 against a typical 1930). Measured against all of Union County, it is worth more than 26% 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 521 Willow Ave, Roselle Park, NJ?

The 2025 property tax bill for 521 Willow Ave, Roselle Park, NJ was $10,887. The county assessed it at $241,600.

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