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Residential (General/Single)Residential
$736,934$447 / 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 Aug 30, 2026

21 PROSPECT AVE

MONTVALE, NJ 07645
0
Baths
1,647 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$737K
$686K low$788K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,958 (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.$390,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$247,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$142,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$390,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$390,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyBERGEN
Lot (acres)The size of the land the home sits on, from county records.0.26
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
Memorial Elementary SchoolB
Elementary · Grades PK–4 · 0.9 mi
H
Pascack Hills High SchoolB
High · Grades 9–12 · 1.9 mi
M
Fieldstone Middle SchoolA
Middle · Grades 5–8 · 2.0 mi

District: Montvale Borough School District

Neighborhood · ZIP 07645These 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.44
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.115
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.117

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
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.8,495
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,132 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$169,704
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$198,340
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 Prospect 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 76% of homes in Montvale 07645
  • Costs more per square foot than 71% of homes in Montvale 07645
  • Smaller than 74% of homes in Montvale 07645
  • Has a bigger lot than 72% of homes in Bergen County
  • Older than 70% of homes in Montvale 07645

What homes are worth in Montvale 07645

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

This home
$324K$1.8M

This home is worth more than 24% of homes in Montvale 07645.

How it measures up in Montvale 07645

The dot is this home. The mark in the middle is the typical home in Montvale 07645.

Estimated value$736,934
CheaperTypical $889,070Pricier

Pricier than 24% of homes nearby

Price per ft²$447
CheaperTypical $406Pricier

Pricier than 71% of homes nearby

Living area1,647 ft²
SmallerTypical 2,221 ft²Bigger

Bigger than 26% of homes nearby

Lot size0.26 ac
SmallerTypical 0.29 acBigger

Bigger than 46% of homes nearby

Year built1960
OlderTypical 1967Newer

Newer than 30% of homes nearby

How 21 Prospect Ave ranks against every home in each area.
MeasureThis homeMontvale 07645Bergen County
Estimated valuepricier than$736,93424% of homes44% of homes
Price per ft²pricier than$44771% of homes57% of homes
Living areabigger than1,647 ft²26% of homes39% of homes
Lot sizebigger than0.26 ac46% of homes72% of homes
Year builtnewer than196030% of homes61% of homes

About 21 Prospect Ave

How much is 21 Prospect Ave, Montvale, NJ worth?

The TopHap Estimate for 21 Prospect Ave, Montvale, NJ is $736,934 as of Aug 30, 2026. The likely range is $685,625 to $788,243. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Prospect Ave, Montvale, NJ last sell?

21 Prospect Ave, Montvale, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Prospect Ave, Montvale, NJ?

21 Prospect Ave, Montvale, NJ has 1,647 square feet of living space and a 0.26-acre lot.

When was 21 Prospect Ave, Montvale, NJ built?

21 Prospect Ave, Montvale, NJ was built in 1960, making it 66 years old. The building has 1 story.

What schools serve 21 Prospect Ave, Montvale, NJ?

21 Prospect Ave, Montvale, NJ is assigned to Memorial Elementary School (elementary), rated B; Pascack Hills High School (high), rated B; Fieldstone Middle School (middle), rated A. All sit in Montvale Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Prospect Ave, Montvale, NJ compare to other homes in Montvale 07645?

Among the 3,009 homes in Montvale 07645, it is worth more than 24% of them ($736,934 against a typical $889,070), its price per square foot is higher than 71% of them ($447 against a typical $406), it is bigger than 26% of them (1,647 ft² against a typical 2,221 ft²), its lot is bigger than 46% of them (0.26 ac against a typical 0.29 ac) and it is newer than 30% of them (1960 against a typical 1967). Measured against all of Bergen County, it is worth more than 44% 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 Prospect Ave, Montvale, NJ?

The 2025 property tax bill for 21 Prospect Ave, Montvale, NJ was $9,958. The county assessed it at $390,200.

More homes on Prospect Ave

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More homes in Montvale 07645

Assigned schools

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