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Single Family ResidenceResidential
$410,509$395 / 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 80How 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

15 KASPER RD

ANDOVER, NJ 07821
0
Baths
1,040 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.
0.92 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$411K
$330K low$491K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,557 (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.$141,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$73,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$67,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$141,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$141,200

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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyWARREN
Lot (acres)The size of the land the home sits on, from county records.0.92
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

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Allamuchy Township Elementary SchoolC+
Middle · Grades 2–8 · 1.8 mi
E
Mountain Villa Elementary School
Elementary · Grades PK–1 · 2.3 mi
H
Hackettstown High SchoolC
High · Grades 9–12 · 6.8 mi

District: Hackettstown Town 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

15 Kasper Rd 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 71% of homes in Andover 07821
  • Costs more per square foot than 98% of homes in Warren County
  • Smaller than 90% of homes in Warren County
  • Has a bigger lot than 69% of homes in Warren County

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
$164K$981K

This home is worth more than 29% 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$410,509
CheaperTypical $488,164Pricier

Pricier than 29% of homes nearby

Price per ft²$395
CheaperTypical $276Pricier

Pricier than 88% of homes nearby

Living area1,040 ft²
SmallerTypical 1,864 ft²Bigger

Bigger than 14% of homes nearby

Lot size0.92 ac
SmallerTypical 0.5 acBigger

Bigger than 65% of homes nearby

Year built1971
OlderTypical 1973Newer

Newer than 46% of homes nearby

How 15 Kasper Rd ranks against every home in each area.
MeasureThis homeAndover 07821Warren County
Estimated valuepricier than$410,50929% of homes48% of homes
Price per ft²pricier than$39588% of homes98% of homes
Living areabigger than1,040 ft²14% of homes10% of homes
Lot sizebigger than0.92 ac65% of homes69% of homes
Year builtnewer than197146% of homes51% of homes

About 15 Kasper Rd

How much is 15 Kasper Rd, Andover, NJ worth?

The TopHap Estimate for 15 Kasper Rd, Andover, NJ is $410,509 as of Sep 24, 2026. The likely range is $329,669 to $491,349. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15 Kasper Rd, Andover, NJ last sell?

15 Kasper Rd, Andover, NJ last sold on Jun 5, 1987, according to the county's recorded deed.

How big is 15 Kasper Rd, Andover, NJ?

15 Kasper Rd, Andover, NJ has 1,040 square feet of living space and a 0.92-acre lot.

When was 15 Kasper Rd, Andover, NJ built?

15 Kasper Rd, Andover, NJ was built in 1971, making it 55 years old. It is a ranch home. The building has 1 story.

What schools serve 15 Kasper Rd, Andover, NJ?

15 Kasper Rd, Andover, NJ is assigned to Allamuchy Township Elementary School (middle), rated C+; Mountain Villa Elementary School (elementary); Hackettstown High School (high), rated C. All sit in Hackettstown Town School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15 Kasper Rd, Andover, NJ compare to other homes in Andover 07821?

Among the 3,729 homes in Andover 07821, it is worth more than 29% of them ($410,509 against a typical $488,164), its price per square foot is higher than 88% of them ($395 against a typical $276), it is bigger than 14% of them (1,040 ft² against a typical 1,864 ft²), its lot is bigger than 65% of them (0.92 ac against a typical 0.5 ac) and it is newer than 46% of them (1971 against a typical 1973). Measured against all of Warren County, it is worth more than 48% 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 15 Kasper Rd, Andover, NJ?

The 2025 property tax bill for 15 Kasper Rd, Andover, NJ was $4,557. The county assessed it at $141,200.

More homes on Kasper Rd

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