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Single Family ResidenceResidential
$380,693$482 / 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 92How 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

12 MOUNT PROSPECT AVE

BELLEVILLE, NJ 07109
0
Baths
790 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.
2,500 ft²
Lot SizeThe size of the land the home sits on, from county records.
1925
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$381K
$351K low$411K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,078 (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.$146,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$51,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$94,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$146,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$146,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyESSEX
Lot (acres)The size of the land the home sits on, from county records.0.06
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
Belleville Ps8D+
Elementary · Grades PK–6 · 0.2 mi
M
Belleville Middle SchoolD
Middle · Grades 7–8 · 0.5 mi
H
Belleville High SchoolD-
High · Grades 9–12 · 1.0 mi

District: Belleville Town School District

Neighborhood · ZIP 07109These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.115

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.0%
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.39,272
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,528 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,531
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$110,448
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

12 Mount 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 93% of homes in Essex County
  • Costs more per square foot than 91% of homes in Belleville 07109
  • Smaller than 98% of homes in Essex County
  • Has a smaller lot than 91% of homes in Belleville 07109
  • Older than 67% of homes in Belleville 07109

What homes are worth in Belleville 07109

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

This home
$245K$945K

This home is worth more than 8% of homes in Belleville 07109.

How it measures up in Belleville 07109

The dot is this home. The mark in the middle is the typical home in Belleville 07109.

Estimated value$380,693
CheaperTypical $558,687Pricier

Pricier than 8% of homes nearby

Price per ft²$482
CheaperTypical $366Pricier

Pricier than 91% of homes nearby

Living area790 ft²
SmallerTypical 1,492 ft²Bigger

Bigger than 7% of homes nearby

Lot size2,500 ft²
SmallerTypical 0.11 acBigger

Bigger than 9% of homes nearby

Year built1925
OlderTypical 1939Newer

Newer than 33% of homes nearby

How 12 Mount Prospect Ave ranks against every home in each area.
MeasureThis homeBelleville 07109Essex County
Estimated valuepricier than$380,6938% of homes7% of homes
Price per ft²pricier than$48291% of homes76% of homes
Living areabigger than790 ft²7% of homes2% of homes
Lot sizebigger than2,500 ft²9% of homes13% of homes
Year builtnewer than192533% of homes36% of homes

About 12 Mount Prospect Ave

How much is 12 Mount Prospect Ave, Belleville, NJ worth?

The TopHap Estimate for 12 Mount Prospect Ave, Belleville, NJ is $380,693 as of Sep 24, 2026. The likely range is $350,869 to $410,517. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12 Mount Prospect Ave, Belleville, NJ last sell?

12 Mount Prospect Ave, Belleville, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12 Mount Prospect Ave, Belleville, NJ?

12 Mount Prospect Ave, Belleville, NJ has 790 square feet of living space and a 0.06-acre lot.

When was 12 Mount Prospect Ave, Belleville, NJ built?

12 Mount Prospect Ave, Belleville, NJ was built in 1925, making it 101 years old. The building has 1 story.

What schools serve 12 Mount Prospect Ave, Belleville, NJ?

12 Mount Prospect Ave, Belleville, NJ is assigned to Belleville Ps8 (elementary), rated D+; Belleville Middle School (middle), rated D; Belleville High School (high), rated D-. All sit in Belleville Town School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Mount Prospect Ave, Belleville, NJ compare to other homes in Belleville 07109?

Among the 9,030 homes in Belleville 07109, it is worth more than 8% of them ($380,693 against a typical $558,687), its price per square foot is higher than 91% of them ($482 against a typical $366), it is bigger than 7% of them (790 ft² against a typical 1,492 ft²), its lot is bigger than 9% of them (2,500 ft² against a typical 0.11 ac) and it is newer than 33% of them (1925 against a typical 1939). Measured against all of Essex County, it is worth more than 7% 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 12 Mount Prospect Ave, Belleville, NJ?

The 2025 property tax bill for 12 Mount Prospect Ave, Belleville, NJ was $6,078. The county assessed it at $146,200.

More homes on Mount Prospect Ave

Closest homes

More homes in Belleville 07109

Assigned schools

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