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Single Family ResidenceResidential
$416,981$424 / 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 93How 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

840 FORREST AVE

SOUTH AMBOY, NJ 08879
0
Baths
984 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.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$417K
$389K low$445K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,945 (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.$157,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$45,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$112,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$157,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$157,900

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.47
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
31
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
67
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
93
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
47
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
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.17
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.

E
Memorial Elementary SchoolB-
Elementary · Grades KG–5 · 0.3 mi
H
Old Bridge High SchoolC
High · Grades 9–12 · 3.4 mi
M
Carl Sandburg Middle SchoolB
Middle · Grades 6–8 · 4.5 mi

District: Old Bridge Township 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

840 Forrest Ave 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 more per square foot than 79% of homes in Middlesex County
  • Smaller than 91% of homes in Middlesex County
  • Has a bigger lot than 80% of homes in South Amboy 08879
  • Older than 92% 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
$314K$1.1M

This home is worth more than 20% 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$416,981
CheaperTypical $521,875Pricier

Pricier than 20% of homes nearby

Price per ft²$424
CheaperTypical $373Pricier

Pricier than 71% of homes nearby

Living area984 ft²
SmallerTypical 1,414 ft²Bigger

Bigger than 19% of homes nearby

Lot size0.17 ac
SmallerTypical 0.11 acBigger

Bigger than 80% of homes nearby

Year built1920
OlderTypical 1954Newer

Newer than 18% of homes nearby

How 840 Forrest Ave ranks against every home in each area.
MeasureThis homeSouth Amboy 08879Middlesex County
Estimated valuepricier than$416,98120% of homes14% of homes
Price per ft²pricier than$42471% of homes79% of homes
Living areabigger than984 ft²19% of homes9% of homes
Lot sizebigger than0.17 ac80% of homes59% of homes
Year builtnewer than192018% of homes8% of homes

About 840 Forrest Ave

How much is 840 Forrest Ave, South Amboy, NJ worth?

The TopHap Estimate for 840 Forrest Ave, South Amboy, NJ is $416,981 as of Sep 24, 2026. The likely range is $388,652 to $445,310. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 840 Forrest Ave, South Amboy, NJ last sell?

840 Forrest Ave, South Amboy, NJ last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 840 Forrest Ave, South Amboy, NJ?

840 Forrest Ave, South Amboy, NJ has 984 square feet of living space and a 0.17-acre lot.

When was 840 Forrest Ave, South Amboy, NJ built?

840 Forrest Ave, South Amboy, NJ was built in 1920, making it 106 years old. The building has 2 stories.

What schools serve 840 Forrest Ave, South Amboy, NJ?

840 Forrest Ave, South Amboy, NJ is assigned to Memorial Elementary School (elementary), rated B-; Old Bridge High School (high), rated C; Carl Sandburg Middle School (middle), rated B. All sit in Old Bridge Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 840 Forrest Ave, 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 20% of them ($416,981 against a typical $521,875), its price per square foot is higher than 71% of them ($424 against a typical $373), it is bigger than 19% of them (984 ft² against a typical 1,414 ft²), its lot is bigger than 80% of them (0.17 ac against a typical 0.11 ac) and it is newer than 18% of them (1920 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 840 Forrest Ave, South Amboy, NJ?

The 2025 property tax bill for 840 Forrest Ave, South Amboy, NJ was $9,945. The county assessed it at $157,900.

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