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Single Family ResidenceResidential
$252,819$188 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $1,000 on Apr 18, 2016

21 HERMAN ST

SOUTH RIVER, NJ 08882
0
Baths
1,344 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.
3,938 ft²
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$253K
$237K low$269K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,000 · Apr 18, 2016
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$0
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$0
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.81%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$237,002
FIRST RESIDENTIAL MORTGAGE SERVICES CORP · recorded May 20, 2008
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$31,800
FREMONT MTG

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$795 (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.$29,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$21,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$8,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$29,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$29,800

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.96 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.73%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

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.0.09
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
South River Middle SchoolC-
Middle · Grades 6–8 · 0.7 mi
H
South River High SchoolD
High · Grades 9–12 · 0.7 mi
E
South River Primary School
Elementary · Grades KG–2 · 0.8 mi

District: South River Borough School District

Neighborhood · ZIP 08882These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.101

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.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.16,718
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,569 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,286
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,749
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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 Herman 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.

  • Among the least valuable homes in South River 08882
  • Among the lowest price per square foot in Middlesex County
  • Smaller than 70% of homes in South River 08882
  • Has a smaller lot than 89% of homes in South River 08882
  • Among the oldest homes in South River 08882

What homes are worth in South River 08882

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

This home
$340K$937K

This home is worth less than almost all homes in South River 08882.

How it measures up in South River 08882

The dot is this home. The mark in the middle is the typical home in South River 08882.

Estimated value$252,819
CheaperTypical $523,604Pricier

Cheaper than almost all homes nearby

Price per ft²$188
CheaperTypical $340Pricier

Cheaper than almost all homes nearby

Living area1,344 ft²
SmallerTypical 1,544 ft²Bigger

Bigger than 30% of homes nearby

Lot size3,938 ft²
SmallerTypical 0.14 acBigger

Bigger than 11% of homes nearby

Year built1890
OlderTypical 1950Newer

Older than almost all homes nearby

How 21 Herman St ranks against every home in each area.
MeasureThis homeSouth River 08882Middlesex County
Estimated valuepricier than$252,819almost no homesalmost no homes
Price per ft²pricier than$188almost no homesalmost no homes
Living areabigger than1,344 ft²30% of homes32% of homes
Lot sizebigger than3,938 ft²11% of homes28% of homes
Year builtnewer than1890almost no homesalmost no homes

About 21 Herman St

How much is 21 Herman St, South River, NJ worth?

The TopHap Estimate for 21 Herman St, South River, NJ is $252,819 as of Jul 14, 2026. The likely range is $236,951 to $268,687. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Herman St, South River, NJ last sell?

21 Herman St, South River, NJ last sold on Apr 18, 2016 for $1,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Herman St, South River, NJ?

21 Herman St, South River, NJ has 1,344 square feet of living space and a 0.09-acre lot.

When was 21 Herman St, South River, NJ built?

21 Herman St, South River, NJ was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 21 Herman St, South River, NJ?

21 Herman St, South River, NJ is assigned to South River Middle School (middle), rated C-; South River High School (high), rated D; South River Primary School (elementary). All sit in South River Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Herman St, South River, NJ compare to other homes in South River 08882?

Among the 4,333 homes in South River 08882, it is worth more than almost none of them ($252,819 against a typical $523,604), its price per square foot is higher than almost none of them ($188 against a typical $340), it is bigger than 30% of them (1,344 ft² against a typical 1,544 ft²), its lot is bigger than 11% of them (3,938 ft² against a typical 0.14 ac) and it is newer than almost none of them (1890 against a typical 1950). Measured against all of Middlesex County, it is worth more than almost no 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 Herman St, South River, NJ?

The 2025 property tax bill for 21 Herman St, South River, NJ was $795. The county assessed it at $29,800.

Closest homes

More homes in South River 08882

Assigned schools

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