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CondominiumResidential
$731,334$649 / 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

666 MILL ST

BELLEVILLE, NJ 07109
Building report
0
Baths
1,126 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.
1.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$731K
$686K low$777K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,316 (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.$176,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$50,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$126,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$176,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$176,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyESSEX
ConstructionThe main material the home's frame and walls are built from.Brick
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.

H
Livingston High SchoolA-
High · Grades 9–12 · 0.2 mi
E
Collins Elementary SchoolA+
Elementary · Grades KG–5 · 0.4 mi
M
Heritage Middle SchoolA+
Middle · Grades 7–8 · 1.3 mi

District: Livingston Township 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%

Owner Tools

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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

666 Mill St 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 88% of homes in Belleville 07109
  • Costs more per square foot than 98% of homes in Belleville 07109
  • Smaller than 92% of homes in Essex County
  • Has a bigger lot than 97% of homes in Essex County
  • Newer than 91% 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
$250K$942K

This home is worth more than 88% 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$731,334
CheaperTypical $558,827Pricier

Pricier than 88% of homes nearby

Price per ft²$649
CheaperTypical $366Pricier

Pricier than 98% of homes nearby

Living area1,126 ft²
SmallerTypical 1,498 ft²Bigger

Bigger than 23% of homes nearby

Lot size1.44 ac
SmallerTypical 0.11 acBigger

Bigger than 92% of homes nearby

Year built1983
OlderTypical 1939Newer

Newer than 91% of homes nearby

How 666 Mill St ranks against every home in each area.
MeasureThis homeBelleville 07109Essex County
Estimated valuepricier than$731,33488% of homes55% of homes
Price per ft²pricier than$64998% of homes94% of homes
Living areabigger than1,126 ft²23% of homes8% of homes
Lot sizebigger than1.44 ac92% of homes97% of homes
Year builtnewer than198391% of homes86% of homes

About 666 Mill St

How much is 666 Mill St, Belleville, NJ worth?

The TopHap Estimate for 666 Mill St, Belleville, NJ is $731,334 as of Sep 24, 2026. The likely range is $685,877 to $776,791. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 666 Mill St, Belleville, NJ last sell?

666 Mill St, Belleville, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

When was 666 Mill St, Belleville, NJ built?

666 Mill St, Belleville, NJ was built in 1983, making it 43 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 666 Mill St, Belleville, NJ?

666 Mill St, Belleville, NJ is assigned to Livingston High School (high), rated A-; Collins Elementary School (elementary), rated A+; Heritage Middle School (middle), rated A+. All sit in Livingston Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 666 Mill St, Belleville, NJ compare to other homes in Belleville 07109?

Among the 9,030 homes in Belleville 07109, it is worth more than 88% of them ($731,334 against a typical $558,827), its price per square foot is higher than 98% of them ($649 against a typical $366), it is bigger than 23% of them (1,126 ft² against a typical 1,498 ft²), its lot is bigger than 92% of them (1.44 ac against a typical 0.11 ac) and it is newer than 91% of them (1983 against a typical 1939). Measured against all of Essex County, it is worth more than 55% 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 666 Mill St, Belleville, NJ?

The 2025 property tax bill for 666 Mill St, Belleville, NJ was $7,316. The county assessed it at $176,000.

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Assigned schools

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