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Single Family ResidenceResidential
$625,469$457 / 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 94How 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 $229,900 on Jan 14, 2000

21 HALSEY AVE

RIVERDALE, NJ 07457
0
Baths
1,368 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.
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$625K
$588K low$663K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$229,900 · Jan 14, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,825 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$569,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$281,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$288,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$483,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$569,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMORRIS
Lot (acres)The size of the land the home sits on, from county records.0.30
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.

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

E
Riverdale SchoolB
Elementary · Grades PK–8 · 0.2 mi
H
Pompton Lakes High SchoolC+
High · Grades 9–12 · 1.0 mi

District: Pompton Lakes Borough School District

Neighborhood · ZIP 07457These 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.122
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.111

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.2%
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.4,349
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,040 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,711
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,876
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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

21 Halsey 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 more than 83% of homes in Riverdale 07457
  • Costs more per square foot than 81% of homes in Morris County
  • Smaller than 79% of homes in Morris County
  • Has a bigger lot than 80% of homes in Riverdale 07457
  • Newer than 91% of homes in Morris County

What homes are worth in Riverdale 07457

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

This home
$309K$1.1M

This home is worth more than 83% of homes in Riverdale 07457.

How it measures up in Riverdale 07457

The dot is this home. The mark in the middle is the typical home in Riverdale 07457.

Estimated value$625,469
CheaperTypical $513,950Pricier

Pricier than 83% of homes nearby

Price per ft²$457
CheaperTypical $382Pricier

Pricier than 80% of homes nearby

Living area1,368 ft²
SmallerTypical 1,308 ft²Bigger

Bigger than 57% of homes nearby

Lot size0.3 ac
SmallerTypical 0.13 acBigger

Bigger than 80% of homes nearby

Year built2002
OlderTypical 2000Newer

Newer than 62% of homes nearby

How 21 Halsey Ave ranks against every home in each area.
MeasureThis homeRiverdale 07457Morris County
Estimated valuepricier than$625,46983% of homes37% of homes
Price per ft²pricier than$45780% of homes81% of homes
Living areabigger than1,368 ft²57% of homes21% of homes
Lot sizebigger than0.3 ac80% of homes44% of homes
Year builtnewer than200262% of homes91% of homes

About 21 Halsey Ave

How much is 21 Halsey Ave, Riverdale, NJ worth?

The TopHap Estimate for 21 Halsey Ave, Riverdale, NJ is $625,469 as of Sep 24, 2026. The likely range is $587,682 to $663,256. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Halsey Ave, Riverdale, NJ last sell?

21 Halsey Ave, Riverdale, NJ last sold on Jan 14, 2000 for $229,900, according to the county's recorded deed.

How big is 21 Halsey Ave, Riverdale, NJ?

21 Halsey Ave, Riverdale, NJ has 1,368 square feet of living space and a 0.30-acre lot.

When was 21 Halsey Ave, Riverdale, NJ built?

21 Halsey Ave, Riverdale, NJ was built in 2002, making it 24 years old. The building has 1 story.

What schools serve 21 Halsey Ave, Riverdale, NJ?

21 Halsey Ave, Riverdale, NJ is assigned to Riverdale School (elementary), rated B; Pompton Lakes High School (high), rated C+. All sit in Pompton Lakes Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Halsey Ave, Riverdale, NJ compare to other homes in Riverdale 07457?

Among the 1,662 homes in Riverdale 07457, it is worth more than 83% of them ($625,469 against a typical $513,950), its price per square foot is higher than 80% of them ($457 against a typical $382), it is bigger than 57% of them (1,368 ft² against a typical 1,308 ft²), its lot is bigger than 80% of them (0.3 ac against a typical 0.13 ac) and it is newer than 62% of them (2002 against a typical 2000). Measured against all of Morris County, it is worth more than 37% 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 Halsey Ave, Riverdale, NJ?

The 2024 property tax bill for 21 Halsey Ave, Riverdale, NJ was $8,825. The county assessed it at $569,900.

More homes on Halsey Ave

Closest homes

More homes in Riverdale 07457

Assigned schools

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