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Single Family ResidenceResidential
$490,376$138 / 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 Sep 24, 2026
Last sold for $233,500 on Aug 21, 2002

100 SOUTH ST

ANDOVER, NJ 07821
0
Baths
3,544 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.
1.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1987
Year BuiltThe year the home was originally built, according to county records.

Valuation

$490K
$461K low$520K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$233,500 · Aug 21, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,123 (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.$389,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$102,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$287,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$389,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$389,200

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.10
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
30
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

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
CountyWARREN
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
Frelinghuysen Township Elementary SchoolB+
Elementary · Grades PK–6 · 2.5 mi
M
North Warren Regional High SchoolB-
Middle · Grades 7–12 · 8.0 mi

District: North Warren Regional School District

Neighborhood · ZIP 07821These 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.69
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.92

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.3%
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.11,080
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.246 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$129,971
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$159,119
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.50 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

100 South 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 more than 67% of homes in Warren County
  • Among the lowest price per square foot in Andover 07821
  • Bigger than 97% of homes in Warren County
  • Has a bigger lot than 81% of homes in Warren County
  • Newer than 74% of homes in Andover 07821

What homes are worth in Andover 07821

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

This home
$175K$1M

This home is worth more than 50% of homes in Andover 07821.

How it measures up in Andover 07821

The dot is this home. The mark in the middle is the typical home in Andover 07821.

Estimated value$490,376
CheaperTypical $490,889Pricier

Pricier than 50% of homes nearby

Price per ft²$138
CheaperTypical $275Pricier

Cheaper than almost all homes nearby

Living area3,544 ft²
SmallerTypical 1,860 ft²Bigger

Bigger than 93% of homes nearby

Lot size1.5 ac
SmallerTypical 0.5 acBigger

Bigger than 74% of homes nearby

Year built1987
OlderTypical 1973Newer

Newer than 74% of homes nearby

How 100 South St ranks against every home in each area.
MeasureThis homeAndover 07821Warren County
Estimated valuepricier than$490,37650% of homes67% of homes
Price per ft²pricier than$138almost no homes3% of homes
Living areabigger than3,544 ft²93% of homes97% of homes
Lot sizebigger than1.5 ac74% of homes81% of homes
Year builtnewer than198774% of homes69% of homes

About 100 South St

How much is 100 South St, Andover, NJ worth?

The TopHap Estimate for 100 South St, Andover, NJ is $490,376 as of Sep 24, 2026. The likely range is $460,978 to $519,774. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 South St, Andover, NJ last sell?

100 South St, Andover, NJ last sold on Aug 21, 2002 for $233,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

When was 100 South St, Andover, NJ built?

100 South St, Andover, NJ was built in 1987, making it 39 years old.

What schools serve 100 South St, Andover, NJ?

100 South St, Andover, NJ is assigned to Frelinghuysen Township Elementary School (elementary), rated B+; North Warren Regional High School (middle), rated B-. All sit in North Warren Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 South St, Andover, NJ compare to other homes in Andover 07821?

Among the 3,729 homes in Andover 07821, it is worth more than 50% of them ($490,376 against a typical $490,889), its price per square foot is higher than almost none of them ($138 against a typical $275), it is bigger than 93% of them (3,544 ft² against a typical 1,860 ft²), its lot is bigger than 74% of them (1.5 ac against a typical 0.5 ac) and it is newer than 74% of them (1987 against a typical 1973). Measured against all of Warren County, it is worth more than 67% 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 100 South St, Andover, NJ?

The 2025 property tax bill for 100 South St, Andover, NJ was $11,123. The county assessed it at $389,200.

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Assigned schools

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