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Single Family ResidenceResidential
$1,618,661$818 / 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 82How 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 $875,000 on Jan 21, 2020

140 UNION ST

MONTCLAIR, NJ 07042
0
Baths
1,980 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.
0.83 ac
Lot SizeThe size of the land the home sits on, from county records.
1740
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.6M
$1.3M low$1.9M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$875,000 · Jan 21, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$30,350 (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.$863,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$363,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$499,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$863,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$863,200

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.0.83
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

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(4)

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

E
Charles H. Bullock SchoolA-
Elementary · Grades KG–5 · 0.6 mi
M
Glenfield Middle SchoolB+
Middle · Grades 6–8 · 0.8 mi
H
Montclair High SchoolB
High · Grades 9–12 · 1.0 mi

District: Montclair Town School District

Neighborhood · ZIP 07042These 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.83
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
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.27,494
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,244 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$132,077
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$183,948
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.51 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

140 Union 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 93% of homes in Essex County
  • Among the highest price per square foot in Montclair 07042
  • Has a bigger lot than 95% of homes in Essex County
  • Among the oldest homes in Montclair 07042

What homes are worth in Montclair 07042

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

This home
$354K$3.1M

This home is worth more than 81% of homes in Montclair 07042.

How it measures up in Montclair 07042

The dot is this home. The mark in the middle is the typical home in Montclair 07042.

Estimated value$1,618,661
CheaperTypical $1,030,382Pricier

Pricier than 81% of homes nearby

Price per ft²$818
CheaperTypical $479Pricier

Pricier than almost all homes nearby

Living area1,980 ft²
SmallerTypical 2,307 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.83 ac
SmallerTypical 0.22 acBigger

Bigger than 88% of homes nearby

Year built1740
OlderTypical 1922Newer

Older than almost all homes nearby

How 140 Union St ranks against every home in each area.
MeasureThis homeMontclair 07042Essex County
Estimated valuepricier than$1,618,66181% of homes93% of homes
Price per ft²pricier than$818almost all homesalmost all homes
Living areabigger than1,980 ft²38% of homes46% of homes
Lot sizebigger than0.83 ac88% of homes95% of homes
Year builtnewer than1740almost no homesalmost no homes

About 140 Union St

How much is 140 Union St, Montclair, NJ worth?

The TopHap Estimate for 140 Union St, Montclair, NJ is $1,618,661 as of Sep 24, 2026. The likely range is $1,332,195 to $1,905,127. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 140 Union St, Montclair, NJ last sell?

140 Union St, Montclair, NJ last sold on Jan 21, 2020 for $875,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 140 Union St, Montclair, NJ?

140 Union St, Montclair, NJ has 1,980 square feet of living space and a 0.83-acre lot.

When was 140 Union St, Montclair, NJ built?

140 Union St, Montclair, NJ was built in 1740, making it 286 years old. The building has 2 stories.

What schools serve 140 Union St, Montclair, NJ?

140 Union St, Montclair, NJ is assigned to Charles H. Bullock School (elementary), rated A-; Glenfield Middle School (middle), rated B+; Montclair High School (high), rated B. All sit in Montclair Town School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 140 Union St, Montclair, NJ compare to other homes in Montclair 07042?

Among the 6,114 homes in Montclair 07042, it is worth more than 81% of them ($1,618,661 against a typical $1,030,382), its price per square foot is higher than almost all of them ($818 against a typical $479), it is bigger than 38% of them (1,980 ft² against a typical 2,307 ft²), its lot is bigger than 88% of them (0.83 ac against a typical 0.22 ac) and it is newer than almost none of them (1740 against a typical 1922). Measured against all of Essex County, it is worth more than 93% 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 140 Union St, Montclair, NJ?

The 2025 property tax bill for 140 Union St, Montclair, NJ was $30,350. The county assessed it at $863,200.

More homes on Union St

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More homes in Montclair 07042

Assigned schools

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