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Residential (General/Single)Residential
$586,253$306 / 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 85How 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 $511,000 on Aug 8, 2019

21 WILLIAM ST

CLIFTON, NJ 07014
0
Baths
1,918 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1907
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

$586K
$499K low$673K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$511,000 · Aug 8, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,504 (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.$187,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$84,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$102,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$187,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$187,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyPASSAIC
Lot (acres)The size of the land the home sits on, from county records.0.17
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(5)

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(1)

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

E
School #8B
Elementary · Grades PK–5 · 0.2 mi
H
Clifton High SchoolD-
High · Grades 9–12 · 3.1 mi
M
Christopher Columbus Middle SchoolC-
Middle · Grades 6–8 · 3.5 mi

District: Clifton City School District

Neighborhood · ZIP 07014These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.119

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.8%
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.5,538
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,881 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$100,508
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,875
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

21 William 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 Delawanna
  • Costs less per square foot than 68% of homes in Passaic County
  • Bigger than 86% of homes in Delawanna
  • Has a bigger lot than 94% of homes in Delawanna
  • Older than 96% of homes in Clifton 07014

What homes are worth in Clifton 07014

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

This home
$332K$970K

This home is worth more than 81% of homes in Clifton 07014.

How it measures up in Clifton 07014

The dot is this home. The mark in the middle is the typical home in Clifton 07014.

Estimated value$586,253
CheaperTypical $465,504Pricier

Pricier than 81% of homes nearby

Price per ft²$306
CheaperTypical $309Pricier

Pricier than 48% of homes nearby

Living area1,918 ft²
SmallerTypical 1,487 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.17 ac
SmallerTypical 4,312 ft²Bigger

Bigger than 89% of homes nearby

Year built1907
OlderTypical 1957Newer

Newer than 4% of homes nearby

How 21 William St ranks against every home in each area.
MeasureThis homeDelawannaClifton 07014Passaic County
Estimated valuepricier than$586,25388% of homes81% of homes47% of homes
Price per ft²pricier than$30653% of homes48% of homes32% of homes
Living areabigger than1,918 ft²86% of homes80% of homes59% of homes
Lot sizebigger than0.17 ac94% of homes89% of homes58% of homes
Year builtnewer than19076% of homes4% of homes9% of homes

About 21 William St

How much is 21 William St, Clifton, NJ worth?

The TopHap Estimate for 21 William St, Clifton, NJ is $586,253 as of Sep 24, 2026. The likely range is $499,218 to $673,288. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 William St, Clifton, NJ last sell?

21 William St, Clifton, NJ last sold on Aug 8, 2019 for $511,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 William St, Clifton, NJ?

21 William St, Clifton, NJ has 1,918 square feet of living space and a 0.17-acre lot.

When was 21 William St, Clifton, NJ built?

21 William St, Clifton, NJ was built in 1907, making it 119 years old. The building has 2 stories.

What schools serve 21 William St, Clifton, NJ?

21 William St, Clifton, NJ is assigned to School #8 (elementary), rated B; Clifton High School (high), rated D-; Christopher Columbus Middle School (middle), rated C-. All sit in Clifton City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 William St, Clifton, NJ compare to other homes in Clifton 07014?

Among the 1,764 homes in Clifton 07014, it is worth more than 81% of them ($586,253 against a typical $465,504), its price per square foot is higher than 48% of them ($306 against a typical $309), it is bigger than 80% of them (1,918 ft² against a typical 1,487 ft²), its lot is bigger than 89% of them (0.17 ac against a typical 4,312 ft²) and it is newer than 4% of them (1907 against a typical 1957). Measured against all of Passaic County, it is worth more than 47% 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 21 William St, Clifton, NJ?

The 2025 property tax bill for 21 William St, Clifton, NJ was $11,504. The county assessed it at $187,700.

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