Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$405,168$405,168 / 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 Sep 24, 2026

833 MADISON AVE

UNION, NJ 07083
0
Baths
1 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1938
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$405K
$378K low$432K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,866 (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.$42,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$23,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$42,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$42,300

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyUNION
Lot (acres)The size of the land the home sits on, from county records.0.12
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(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.

M
Burnet Middle SchoolC-
Middle · Grades 6–8 · 0.4 mi
E
Connecticut Farms Elementary SchoolC
Elementary · Grades PK–4 · 0.4 mi
H
Union High SchoolD
High · Grades 9–12 · 0.7 mi

District: Union Township School District

Neighborhood · ZIP 07083These 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.100
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.6.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.57,241
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,577 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,741
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$147,270
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

Do you own this home?
Claim this home

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

833 Madison 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 95% of homes in Union 07083
  • Among the smallest homes in Union 07083
  • Has a smaller lot than 76% of homes in Union 07083
  • Older than 75% of homes in Union 07083

What homes are worth in Union 07083

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

This home
$316K$893K

This home is worth more than 5% of homes in Union 07083.

How it measures up in Union 07083

The dot is this home. The mark in the middle is the typical home in Union 07083.

Estimated value$405,168
CheaperTypical $590,079Pricier

Pricier than 5% of homes nearby

Living area1 ft²
SmallerTypical 1,512 ft²Bigger

Smaller than almost all homes nearby

Lot size0.11 ac
SmallerTypical 0.13 acBigger

Bigger than 24% of homes nearby

Year built1938
OlderTypical 1950Newer

Newer than 25% of homes nearby

How 833 Madison Ave ranks against every home in each area.
MeasureThis homeUnion 07083Union County
Estimated valuepricier than$405,1685% of homes6% of homes
Living areabigger than1 ft²almost no homesalmost no homes
Lot sizebigger than0.11 ac24% of homes27% of homes
Year builtnewer than193825% of homes36% of homes

About 833 Madison Ave

How much is 833 Madison Ave, Union, NJ worth?

The TopHap Estimate for 833 Madison Ave, Union, NJ is $405,168 as of Sep 24, 2026. The likely range is $378,348 to $431,988. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 833 Madison Ave, Union, NJ last sell?

833 Madison Ave, Union, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 833 Madison Ave, Union, NJ?

833 Madison Ave, Union, NJ has 1 square feet of living space and a 0.12-acre lot.

When was 833 Madison Ave, Union, NJ built?

833 Madison Ave, Union, NJ was built in 1938, making it 88 years old. The building has 1 story.

What schools serve 833 Madison Ave, Union, NJ?

833 Madison Ave, Union, NJ is assigned to Burnet Middle School (middle), rated C-; Connecticut Farms Elementary School (elementary), rated C; Union High School (high), rated D. All sit in Union Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 833 Madison Ave, Union, NJ compare to other homes in Union 07083?

Among the 15,572 homes in Union 07083, it is worth more than 5% of them ($405,168 against a typical $590,079), it is bigger than almost none of them (1 ft² against a typical 1,512 ft²), its lot is bigger than 24% of them (0.11 ac against a typical 0.13 ac) and it is newer than 25% of them (1938 against a typical 1950). Measured against all of Union County, it is worth more than 6% 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 833 Madison Ave, Union, NJ?

The 2025 property tax bill for 833 Madison Ave, Union, NJ was $9,866. The county assessed it at $42,300.

More homes on Madison Ave

Closest homes

More homes in Union 07083

Assigned schools

Explore the area

See this home in context

Open 833 Madison Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map