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Single Family ResidenceResidential
$415,000$336 / 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 92How 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 $415,000 on Sep 30, 2026

357 PORTIA ST

SOUTH AMBOY, NJ 08879
0
Baths
1,236 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1931
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$415K
$383K low$447K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$415,000 · Sep 30, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,592 (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.$236,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$141,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$95,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$236,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$236,000

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.0.21
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
South Amboy Elementary SchoolD+
Elementary · Grades PK–6 · 0.4 mi
M
South Amboy Middle High SchoolD
Middle · Grades 7–12 · 0.6 mi

District: South Amboy City School District

Neighborhood · ZIP 08879These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.23,254
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,866 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,649
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,457
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

357 Portia 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 86% of homes in Middlesex County
  • Costs less per square foot than 68% of homes in South Amboy 08879
  • Smaller than 75% of homes in Middlesex County
  • Has a bigger lot than 85% of homes in South Amboy 08879
  • Older than 87% of homes in Middlesex County

What homes are worth in South Amboy 08879

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

This home
$315K$975K

This home is worth more than 19% of homes in South Amboy 08879.

How it measures up in South Amboy 08879

The dot is this home. The mark in the middle is the typical home in South Amboy 08879.

Estimated value$415,000
CheaperTypical $520,205Pricier

Pricier than 19% of homes nearby

Price per ft²$336
CheaperTypical $373Pricier

Pricier than 32% of homes nearby

Living area1,236 ft²
SmallerTypical 1,415 ft²Bigger

Bigger than 36% of homes nearby

Lot size0.21 ac
SmallerTypical 0.11 acBigger

Bigger than 85% of homes nearby

Year built1931
OlderTypical 1954Newer

Newer than 28% of homes nearby

How 357 Portia St ranks against every home in each area.
MeasureThis homeSouth Amboy 08879Middlesex County
Estimated valuepricier than$415,00019% of homes14% of homes
Price per ft²pricier than$33632% of homes36% of homes
Living areabigger than1,236 ft²36% of homes25% of homes
Lot sizebigger than0.21 ac85% of homes68% of homes
Year builtnewer than193128% of homes13% of homes

About 357 Portia St

How much is 357 Portia St, South Amboy, NJ worth?

The TopHap Estimate for 357 Portia St, South Amboy, NJ is $415,000 as of Sep 24, 2026. The likely range is $383,311 to $446,689. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 357 Portia St, South Amboy, NJ last sell?

357 Portia St, South Amboy, NJ last sold on Sep 30, 2026 for $415,000, according to the county's recorded deed.

How big is 357 Portia St, South Amboy, NJ?

357 Portia St, South Amboy, NJ has 1,236 square feet of living space and a 0.21-acre lot.

When was 357 Portia St, South Amboy, NJ built?

357 Portia St, South Amboy, NJ was built in 1931, making it 95 years old. It is a cape cod home. The building has 1 story.

What schools serve 357 Portia St, South Amboy, NJ?

357 Portia St, South Amboy, NJ is assigned to South Amboy Elementary School (elementary), rated D+; South Amboy Middle High School (middle), rated D. All sit in South Amboy City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 357 Portia St, South Amboy, NJ compare to other homes in South Amboy 08879?

Among the 7,042 homes in South Amboy 08879, it is worth more than 19% of them ($415,000 against a typical $520,205), its price per square foot is higher than 32% of them ($336 against a typical $373), it is bigger than 36% of them (1,236 ft² against a typical 1,415 ft²), its lot is bigger than 85% of them (0.21 ac against a typical 0.11 ac) and it is newer than 28% of them (1931 against a typical 1954). Measured against all of Middlesex County, it is worth more than 14% 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 357 Portia St, South Amboy, NJ?

The 2025 property tax bill for 357 Portia St, South Amboy, NJ was $7,592. The county assessed it at $236,000.

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