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Single Family ResidenceResidential
$432,554$220 / 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 Sep 24, 2026

21 DUNCAN RD

SEWELL, NJ 08080
0
Baths
1,964 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.

Valuation

$433K
$417K low$448K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,183 (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.$212,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$50,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$161,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$212,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$212,100

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.44
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
28
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
72
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
86
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyGLOUCESTER
Lot (acres)The size of the land the home sits on, from county records.0.21
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.

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

M
Chestnut Ridge Middle SchoolB-
Middle · Grades 6–8 · 0.4 mi
E
Hurffville Elementary SchoolA-
Elementary · Grades 1–5 · 0.8 mi
H
Washington Township High SchoolC+
High · Grades 9–12 · 0.9 mi

District: Washington Township School District

Neighborhood · ZIP 08080These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.71

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.42,430
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,444 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,695
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,357
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Owner Tools

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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 Duncan Rd 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.

  • Older than 74% of homes in Sewell 08080

What homes are worth in Sewell 08080

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

This home
$235K$823K

This home is worth more than 45% of homes in Sewell 08080.

How it measures up in Sewell 08080

The dot is this home. The mark in the middle is the typical home in Sewell 08080.

Estimated value$432,554
CheaperTypical $453,664Pricier

Pricier than 45% of homes nearby

Price per ft²$220
CheaperTypical $225Pricier

Pricier than 44% of homes nearby

Living area1,964 ft²
SmallerTypical 2,030 ft²Bigger

Bigger than 47% of homes nearby

Lot size0.22 ac
SmallerTypical 0.24 acBigger

Bigger than 42% of homes nearby

Year built1979
OlderTypical 1987Newer

Newer than 26% of homes nearby

How 21 Duncan Rd ranks against every home in each area.
MeasureThis homeSewell 08080Gloucester County
Estimated valuepricier than$432,55445% of homes64% of homes
Price per ft²pricier than$22044% of homes50% of homes
Living areabigger than1,964 ft²47% of homes61% of homes
Lot sizebigger than0.22 ac42% of homes38% of homes
Year builtnewer than197926% of homes50% of homes

About 21 Duncan Rd

How much is 21 Duncan Rd, Sewell, NJ worth?

The TopHap Estimate for 21 Duncan Rd, Sewell, NJ is $432,554 as of Sep 24, 2026. The likely range is $417,391 to $447,717. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Duncan Rd, Sewell, NJ last sell?

21 Duncan Rd, Sewell, NJ last sold on Aug 12, 2010, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Duncan Rd, Sewell, NJ?

21 Duncan Rd, Sewell, NJ has 1,964 square feet of living space and a 0.21-acre lot.

When was 21 Duncan Rd, Sewell, NJ built?

21 Duncan Rd, Sewell, NJ was built in 1979, making it 47 years old.

What schools serve 21 Duncan Rd, Sewell, NJ?

21 Duncan Rd, Sewell, NJ is assigned to Chestnut Ridge Middle School (middle), rated B-; Hurffville Elementary School (elementary), rated A-; Washington Township High School (high), rated C+. All sit in Washington Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Duncan Rd, Sewell, NJ compare to other homes in Sewell 08080?

Among the 13,178 homes in Sewell 08080, it is worth more than 45% of them ($432,554 against a typical $453,664), its price per square foot is higher than 44% of them ($220 against a typical $225), it is bigger than 47% of them (1,964 ft² against a typical 2,030 ft²), its lot is bigger than 42% of them (0.22 ac against a typical 0.24 ac) and it is newer than 26% of them (1979 against a typical 1987). Measured against all of Gloucester County, it is worth more than 64% 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 Duncan Rd, Sewell, NJ?

The 2025 property tax bill for 21 Duncan Rd, Sewell, NJ was $8,183. The county assessed it at $212,100.

More homes on Duncan Rd

Closest homes

More homes in Sewell 08080

Assigned schools

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