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Single Family ResidenceResidential
$1,073,124$716 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $740,000 on Jun 18, 2007

21 DUNNDER DR

SUMMIT, NJ 07901
0
Baths
1,498 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.
1947
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$1.1M
$1M low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$740,000 · Jun 18, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,492 (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.$279,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$143,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$136,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$279,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$279,400

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.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.

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

H
Summit High SchoolA-
High · Grades 9–12 · 0.4 mi
E
Washington Elementary SchoolA+
Elementary · Grades 1–5 · 0.6 mi
M
Lawton C. Johnson Summit Middle SchoolA+
Middle · Grades 6–8 · 1.1 mi

District: Summit City School District

Neighborhood · ZIP 07901These 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.55
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.110

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.24,077
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,885 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$187,703
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$262,118
Average tempThe average temperature here across a full year.51°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

21 Dunnder Dr 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 87% of homes in Union County
  • Costs more per square foot than 97% of homes in Union County
  • Smaller than 81% of homes in Summit 07901
  • Has a smaller lot than 78% of homes in Summit 07901

What homes are worth in Summit 07901

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

This home
$480K$4.2M

This home is worth more than 35% of homes in Summit 07901.

How it measures up in Summit 07901

The dot is this home. The mark in the middle is the typical home in Summit 07901.

Estimated value$1,073,124
CheaperTypical $1,362,192Pricier

Pricier than 35% of homes nearby

Price per ft²$716
CheaperTypical $634Pricier

Pricier than 70% of homes nearby

Living area1,498 ft²
SmallerTypical 2,294 ft²Bigger

Bigger than 19% of homes nearby

Lot size0.17 ac
SmallerTypical 0.29 acBigger

Bigger than 22% of homes nearby

Year built1947
OlderTypical 1951Newer

Newer than 43% of homes nearby

How 21 Dunnder Dr ranks against every home in each area.
MeasureThis homeSummit 07901Union County
Estimated valuepricier than$1,073,12435% of homes87% of homes
Price per ft²pricier than$71670% of homes97% of homes
Living areabigger than1,498 ft²19% of homes35% of homes
Lot sizebigger than0.17 ac22% of homes62% of homes
Year builtnewer than194743% of homes44% of homes

About 21 Dunnder Dr

How much is 21 Dunnder Dr, Summit, NJ worth?

The TopHap Estimate for 21 Dunnder Dr, Summit, NJ is $1,073,124 as of Oct 21, 2026. The likely range is $1,010,499 to $1,135,749. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Dunnder Dr, Summit, NJ last sell?

21 Dunnder Dr, Summit, NJ last sold on Jun 18, 2007 for $740,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Dunnder Dr, Summit, NJ?

21 Dunnder Dr, Summit, NJ has 1,498 square feet of living space and a 0.17-acre lot.

When was 21 Dunnder Dr, Summit, NJ built?

21 Dunnder Dr, Summit, NJ was built in 1947, making it 79 years old. The building has 2 stories.

What schools serve 21 Dunnder Dr, Summit, NJ?

21 Dunnder Dr, Summit, NJ is assigned to Summit High School (high), rated A-; Washington Elementary School (elementary), rated A+; Lawton C. Johnson Summit Middle School (middle), rated A+. All sit in Summit City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Dunnder Dr, Summit, NJ compare to other homes in Summit 07901?

Among the 6,689 homes in Summit 07901, it is worth more than 35% of them ($1,073,124 against a typical $1,362,192), its price per square foot is higher than 70% of them ($716 against a typical $634), it is bigger than 19% of them (1,498 ft² against a typical 2,294 ft²), its lot is bigger than 22% of them (0.17 ac against a typical 0.29 ac) and it is newer than 43% of them (1947 against a typical 1951). Measured against all of Union County, it is worth more than 87% 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 Dunnder Dr, Summit, NJ?

The 2025 property tax bill for 21 Dunnder Dr, Summit, NJ was $12,492. The county assessed it at $279,400.

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