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Single Family ResidenceResidential
$483,902$401 / 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 Sep 24, 2026
Last sold for $225,000 on Feb 19, 2016

31 S ROBERT ST

SEWAREN, NJ 07077
0
Baths
1,206 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$484K
$459K low$509K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$225,000 · Feb 19, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,642 (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.$67,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$20,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$47,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$67,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$67,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Cape Cod
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.26
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(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
Matthew Jago Elementary SchoolD+
Elementary · Grades KG–5 · 0.5 mi
H
Woodbridge High SchoolC-
High · Grades 9–12 · 1.6 mi
M
Avenel Middle SchoolD+
Middle · Grades 6–8 · 2.8 mi

District: Woodbridge Township School District

Neighborhood · ZIP 07077These 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.119
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.102

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.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.6%
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.3,014
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,246 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$105,765
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$123,746
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

31 S Robert 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 less than 73% of homes in Middlesex County
  • Costs more per square foot than 72% of homes in Middlesex County
  • Smaller than 77% of homes in Middlesex County
  • Has a bigger lot than 87% of homes in Sewaren 07077
  • Older than 79% of homes in Middlesex County

What homes are worth in Sewaren 07077

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

This home
$398K$764K

This home is worth more than 35% of homes in Sewaren 07077.

How it measures up in Sewaren 07077

The dot is this home. The mark in the middle is the typical home in Sewaren 07077.

Estimated value$483,902
CheaperTypical $514,284Pricier

Pricier than 35% of homes nearby

Price per ft²$401
CheaperTypical $384Pricier

Pricier than 58% of homes nearby

Living area1,206 ft²
SmallerTypical 1,346 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.26 ac
SmallerTypical 0.14 acBigger

Bigger than 87% of homes nearby

Year built1949
OlderTypical 1953Newer

Newer than 40% of homes nearby

How 31 S Robert St ranks against every home in each area.
MeasureThis homeSewaren 07077Middlesex County
Estimated valuepricier than$483,90235% of homes27% of homes
Price per ft²pricier than$40158% of homes72% of homes
Living areabigger than1,206 ft²40% of homes23% of homes
Lot sizebigger than0.26 ac87% of homes78% of homes
Year builtnewer than194940% of homes21% of homes

About 31 S Robert St

How much is 31 S Robert St, Sewaren, NJ worth?

The TopHap Estimate for 31 S Robert St, Sewaren, NJ is $483,902 as of Sep 24, 2026. The likely range is $459,226 to $508,578. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 S Robert St, Sewaren, NJ last sell?

31 S Robert St, Sewaren, NJ last sold on Feb 19, 2016 for $225,000, according to the county's recorded deed.

How big is 31 S Robert St, Sewaren, NJ?

31 S Robert St, Sewaren, NJ has 1,206 square feet of living space and a 0.26-acre lot.

When was 31 S Robert St, Sewaren, NJ built?

31 S Robert St, Sewaren, NJ was built in 1949, making it 77 years old. It is a cape cod home. The building has 1 story.

What schools serve 31 S Robert St, Sewaren, NJ?

31 S Robert St, Sewaren, NJ is assigned to Matthew Jago Elementary School (elementary), rated D+; Woodbridge High School (high), rated C-; Avenel Middle School (middle), rated D+. All sit in Woodbridge Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 S Robert St, Sewaren, NJ compare to other homes in Sewaren 07077?

Among the 825 homes in Sewaren 07077, it is worth more than 35% of them ($483,902 against a typical $514,284), its price per square foot is higher than 58% of them ($401 against a typical $384), it is bigger than 40% of them (1,206 ft² against a typical 1,346 ft²), its lot is bigger than 87% of them (0.26 ac against a typical 0.14 ac) and it is newer than 40% of them (1949 against a typical 1953). Measured against all of Middlesex County, it is worth more than 27% 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 31 S Robert St, Sewaren, NJ?

The 2025 property tax bill for 31 S Robert St, Sewaren, NJ was $9,642. The county assessed it at $67,500.

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