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Single Family ResidenceResidential
$485,773$367 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

42 WILLIAMS ST

ROSELLE PARK, NJ 07204
0
Baths
1,323 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.
2,601 ft²
Lot SizeThe size of the land the home sits on, from county records.
1915
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$486K
$468K low$503K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$485,773
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$388,618

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,827 (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.$173,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$77,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$96,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$173,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$173,700

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.0.06
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

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
Roselle Park Middle SchoolB-
Middle · Grades 6–8 · 0.3 mi
E
Robert Gordon Elementary SchoolB
Elementary · Grades PK–5 · 0.3 mi
H
Roselle Park High SchoolB-
High · Grades 9–12 · 0.6 mi

District: Roselle Park Borough School District

Neighborhood · ZIP 07204These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
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.14,215
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,542 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,523
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,639
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

42 Williams 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 less than 88% of homes in Roselle Park 07204
  • Costs less per square foot than 65% of homes in Union County
  • Smaller than 76% of homes in Union County
  • Has a smaller lot than 92% of homes in Union County
  • Older than 89% of homes in Union County

What homes are worth in Roselle Park 07204

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

This home
$290K$775K

This home is worth more than 12% of homes in Roselle Park 07204.

How it measures up in Roselle Park 07204

The dot is this home. The mark in the middle is the typical home in Roselle Park 07204.

Estimated value$485,773
CheaperTypical $566,034Pricier

Pricier than 12% of homes nearby

Price per ft²$367
CheaperTypical $365Pricier

Pricier than 52% of homes nearby

Living area1,323 ft²
SmallerTypical 1,564 ft²Bigger

Bigger than 26% of homes nearby

Lot size2,601 ft²
SmallerTypical 0.11 acBigger

Bigger than 12% of homes nearby

Year built1915
OlderTypical 1930Newer

Newer than 16% of homes nearby

How 42 Williams St ranks against every home in each area.
MeasureThis homeRoselle Park 07204Union County
Estimated valuepricier than$485,77312% of homes18% of homes
Price per ft²pricier than$36752% of homes35% of homes
Living areabigger than1,323 ft²26% of homes24% of homes
Lot sizebigger than2,601 ft²12% of homes8% of homes
Year builtnewer than191516% of homes11% of homes

About 42 Williams St

How much is 42 Williams St, Roselle Park, NJ worth?

The TopHap Estimate for 42 Williams St, Roselle Park, NJ is $485,773 as of Jul 14, 2026. The likely range is $468,353 to $503,193. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 42 Williams St, Roselle Park, NJ last sell?

42 Williams St, Roselle Park, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 42 Williams St, Roselle Park, NJ?

42 Williams St, Roselle Park, NJ has 1,323 square feet of living space and a 0.06-acre lot.

When was 42 Williams St, Roselle Park, NJ built?

42 Williams St, Roselle Park, NJ was built in 1915, making it 111 years old. The building has 1 story.

What schools serve 42 Williams St, Roselle Park, NJ?

42 Williams St, Roselle Park, NJ is assigned to Roselle Park Middle School (middle), rated B-; Robert Gordon Elementary School (elementary), rated B; Roselle Park High School (high), rated B-. All sit in Roselle Park Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 42 Williams St, Roselle Park, NJ compare to other homes in Roselle Park 07204?

Among the 3,363 homes in Roselle Park 07204, it is worth more than 12% of them ($485,773 against a typical $566,034), its price per square foot is higher than 52% of them ($367 against a typical $365), it is bigger than 26% of them (1,323 ft² against a typical 1,564 ft²), its lot is bigger than 12% of them (2,601 ft² against a typical 0.11 ac) and it is newer than 16% of them (1915 against a typical 1930). Measured against all of Union County, it is worth more than 18% 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 42 Williams St, Roselle Park, NJ?

The 2025 property tax bill for 42 Williams St, Roselle Park, NJ was $7,827. The county assessed it at $173,700.

Closest homes

More homes in Roselle Park 07204

Assigned schools

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