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Single Family ResidenceResidential
$1,042,771$668 / 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 Jul 14, 2026
Last sold for $476,000 on May 3, 2004

21 ASTOR PL

GLEN RIDGE, NJ 07028
0
Baths
1,560 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1928
Year BuiltThe year the home was originally built, according to county records.

Valuation

$1M
$885K low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$476,000 · May 3, 2004
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.$527,771
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$422,217
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.48%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$415,000
PINNACLE MTG · recorded Jul 18, 2013
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$100,000
QUORUM FCU

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,845 (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.$979,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$505,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$474,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$537,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$979,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyESSEX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1930
Lot (acres)The size of the land the home sits on, from county records.0.20
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.

E
Linden Avenue Elementary School
Elementary · Grades PK–2 · 0.2 mi
M
Glen Ridge High SchoolA-
Middle · Grades 7–12 · 0.6 mi

District: Glen Ridge Borough School District

Neighborhood · ZIP 07028These 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.28
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.0%
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.8,650
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,568 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$198,652
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$268,789
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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.No

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 Astor Pl 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 77% of homes in Essex County
  • Costs more per square foot than 95% of homes in Essex County
  • Smaller than 83% of homes in Glen Ridge 07028
  • Has a bigger lot than 67% of homes in Essex County
  • Newer than 68% of homes in Glen Ridge 07028

What homes are worth in Glen Ridge 07028

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

This home
$575K$2.7M

This home is worth more than 35% of homes in Glen Ridge 07028.

How it measures up in Glen Ridge 07028

The dot is this home. The mark in the middle is the typical home in Glen Ridge 07028.

Estimated value$1,042,771
CheaperTypical $1,219,691Pricier

Pricier than 35% of homes nearby

Price per ft²$668
CheaperTypical $564Pricier

Pricier than 87% of homes nearby

Living area1,560 ft²
SmallerTypical 2,148 ft²Bigger

Bigger than 17% of homes nearby

Lot size0.2 ac
SmallerTypical 0.2 acBigger

Bigger than 51% of homes nearby

Year built1928
OlderTypical 1923Newer

Newer than 68% of homes nearby

How 21 Astor Pl ranks against every home in each area.
MeasureThis homeGlen Ridge 07028Essex County
Estimated valuepricier than$1,042,77135% of homes77% of homes
Price per ft²pricier than$66887% of homes95% of homes
Living areabigger than1,560 ft²17% of homes27% of homes
Lot sizebigger than0.2 ac51% of homes67% of homes
Year builtnewer than192868% of homes43% of homes

About 21 Astor Pl

How much is 21 Astor Pl, Glen Ridge, NJ worth?

The TopHap Estimate for 21 Astor Pl, Glen Ridge, NJ is $1,042,771 as of Jul 14, 2026. The likely range is $884,848 to $1,200,694. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Astor Pl, Glen Ridge, NJ last sell?

21 Astor Pl, Glen Ridge, NJ last sold on May 3, 2004 for $476,000, according to the county's recorded deed.

How big is 21 Astor Pl, Glen Ridge, NJ?

21 Astor Pl, Glen Ridge, NJ has 1,560 square feet of living space and a 0.20-acre lot.

When was 21 Astor Pl, Glen Ridge, NJ built?

21 Astor Pl, Glen Ridge, NJ was built in 1928, making it 98 years old.

What schools serve 21 Astor Pl, Glen Ridge, NJ?

21 Astor Pl, Glen Ridge, NJ is assigned to Linden Avenue Elementary School (elementary); Glen Ridge High School (middle), rated A-. All sit in Glen Ridge Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Astor Pl, Glen Ridge, NJ compare to other homes in Glen Ridge 07028?

Among the 2,376 homes in Glen Ridge 07028, it is worth more than 35% of them ($1,042,771 against a typical $1,219,691), its price per square foot is higher than 87% of them ($668 against a typical $564), it is bigger than 17% of them (1,560 ft² against a typical 2,148 ft²), its lot is bigger than 51% of them (0.2 ac against a typical 0.2 ac) and it is newer than 68% of them (1928 against a typical 1923). Measured against all of Essex County, it is worth more than 77% 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 Astor Pl, Glen Ridge, NJ?

The 2025 property tax bill for 21 Astor Pl, Glen Ridge, NJ was $18,845. The county assessed it at $979,700.

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Assigned schools

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