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Single Family ResidenceResidential
$420,000$322 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $148,500 on Oct 26, 2016

20 S MARS DR

SEWELL, NJ 08080
0
Baths
1,304 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.
1984
Year BuiltThe year the home was originally built, according to county records.

Valuation

$420K
$401K low$439K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$148,500 · Oct 26, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,203 (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.$186,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$55,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$130,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$186,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$186,700

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.43
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
25
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(6)

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(2)

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

M
Orchard Valley Middle SchoolB
Middle · Grades 6–8 · 0.6 mi
E
Thomas Jefferson Elementary SchoolB+
Elementary · Grades KG–5 · 0.7 mi
H
Washington Township High SchoolC+
High · Grades 9–12 · 1.5 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

20 S Mars 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.

  • Among the highest price per square foot in Sewell 08080
  • Smaller than 85% of homes in Sewell 08080
  • Older than 66% 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
$232K$830K

This home is worth more than 42% 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$420,000
CheaperTypical $450,910Pricier

Pricier than 42% of homes nearby

Price per ft²$322
CheaperTypical $223Pricier

Pricier than almost all homes nearby

Living area1,304 ft²
SmallerTypical 2,032 ft²Bigger

Bigger than 15% of homes nearby

Lot size0.22 ac
SmallerTypical 0.24 acBigger

Bigger than 41% of homes nearby

Year built1984
OlderTypical 1987Newer

Newer than 34% of homes nearby

How 20 S Mars Dr ranks against every home in each area.
MeasureThis homeSewell 08080Gloucester County
Estimated valuepricier than$420,00042% of homes62% of homes
Price per ft²pricier than$322almost all homesalmost all homes
Living areabigger than1,304 ft²15% of homes21% of homes
Lot sizebigger than0.22 ac41% of homes38% of homes
Year builtnewer than198434% of homes55% of homes

About 20 S Mars Dr

How much is 20 S Mars Dr, Sewell, NJ worth?

The TopHap Estimate for 20 S Mars Dr, Sewell, NJ is $420,000 as of Aug 30, 2026. The likely range is $400,777 to $439,223. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 S Mars Dr, Sewell, NJ last sell?

20 S Mars Dr, Sewell, NJ last sold on Oct 26, 2016 for $148,500, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 20 S Mars Dr, Sewell, NJ?

20 S Mars Dr, Sewell, NJ has 1,304 square feet of living space and a 0.21-acre lot.

When was 20 S Mars Dr, Sewell, NJ built?

20 S Mars Dr, Sewell, NJ was built in 1984, making it 42 years old.

What schools serve 20 S Mars Dr, Sewell, NJ?

20 S Mars Dr, Sewell, NJ is assigned to Orchard Valley Middle School (middle), rated B; Thomas Jefferson Elementary School (elementary), rated B+; 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 20 S Mars Dr, Sewell, NJ compare to other homes in Sewell 08080?

Among the 13,178 homes in Sewell 08080, it is worth more than 42% of them ($420,000 against a typical $450,910), its price per square foot is higher than almost all of them ($322 against a typical $223), it is bigger than 15% of them (1,304 ft² against a typical 2,032 ft²), its lot is bigger than 41% of them (0.22 ac against a typical 0.24 ac) and it is newer than 34% of them (1984 against a typical 1987). Measured against all of Gloucester County, it is worth more than 62% 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 20 S Mars Dr, Sewell, NJ?

The 2025 property tax bill for 20 S Mars Dr, Sewell, NJ was $7,203. The county assessed it at $186,700.

More homes on S Mars Dr

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Assigned schools

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