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Single Family ResidenceResidential
$278,476$296 / 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 91How 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 $135,000 on Jul 25, 2016

21 OSPREY

HACKETTSTOWN, NJ 07840
1
Beds
1
Baths
942 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.
44 ft²
Lot SizeThe size of the land the home sits on, from county records.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$278K
$255K low$302K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$135,000 · Jul 25, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,359 (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.$104,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$69,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$104,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$104,100

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.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
97
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. 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.Condo/Apartment
CountyWARREN
Lot (acres)The size of the land the home sits on, from county records.0.00
ConstructionThe main material the home's frame and walls are built from.Brick
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Mountain Villa Elementary School
Elementary · Grades PK–1 · 0.7 mi
M
Allamuchy Township Elementary SchoolC+
Middle · Grades 2–8 · 1.2 mi
H
Hackettstown High SchoolC
High · Grades 9–12 · 4.8 mi

District: Hackettstown Town School District

Neighborhood · ZIP 07840These 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.72
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.85

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
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.30,612
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.849 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,139
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,293
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.52 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

21 Osprey 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 96% of homes in Hackettstown 07840
  • Costs more per square foot than 79% of homes in Warren County
  • Smaller than 96% of homes in Hackettstown 07840
  • Among the smallest lots in Warren County

What homes are worth in Hackettstown 07840

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

This home
$258K$915K

This home is worth more than 4% of homes in Hackettstown 07840.

How it measures up in Hackettstown 07840

The dot is this home. The mark in the middle is the typical home in Hackettstown 07840.

Estimated value$278,476
CheaperTypical $492,106Pricier

Pricier than 4% of homes nearby

Price per ft²$296
CheaperTypical $279Pricier

Pricier than 61% of homes nearby

Living area942 ft²
SmallerTypical 1,788 ft²Bigger

Bigger than 4% of homes nearby

Lot size44 ft²
SmallerTypical 0.26 acBigger

Bigger than 4% of homes nearby

Year built1970
OlderTypical 1983Newer

Newer than 36% of homes nearby

How 21 Osprey ranks against every home in each area.
MeasureThis homeHackettstown 07840Warren County
Estimated valuepricier than$278,4764% of homes13% of homes
Price per ft²pricier than$29661% of homes79% of homes
Living areabigger than942 ft²4% of homes6% of homes
Lot sizebigger than44 ft²4% of homesalmost no homes
Year builtnewer than197036% of homes50% of homes

About 21 Osprey

How much is 21 Osprey, Hackettstown, NJ worth?

The TopHap Estimate for 21 Osprey, Hackettstown, NJ is $278,476 as of Sep 24, 2026. The likely range is $254,509 to $302,443. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Osprey, Hackettstown, NJ last sell?

21 Osprey, Hackettstown, NJ last sold on Jul 25, 2016 for $135,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Osprey, Hackettstown, NJ?

21 Osprey, Hackettstown, NJ has 1 bedrooms, 1 bathrooms, 942 square feet of living space and a 0.00-acre lot.

When was 21 Osprey, Hackettstown, NJ built?

21 Osprey, Hackettstown, NJ was built in 1970, making it 56 years old. It is a condo/apartment home. The building has 1 story.

What schools serve 21 Osprey, Hackettstown, NJ?

21 Osprey, Hackettstown, NJ is assigned to Mountain Villa Elementary School (elementary); Allamuchy Township Elementary School (middle), rated C+; 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 21 Osprey, Hackettstown, NJ compare to other homes in Hackettstown 07840?

Among the 9,121 homes in Hackettstown 07840, it is worth more than 4% of them ($278,476 against a typical $492,106), its price per square foot is higher than 61% of them ($296 against a typical $279), it is bigger than 4% of them (942 ft² against a typical 1,788 ft²), its lot is bigger than 4% of them (44 ft² against a typical 0.26 ac) and it is newer than 36% of them (1970 against a typical 1983). Measured against all of Warren County, it is worth more than 13% 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 21 Osprey, Hackettstown, NJ?

The 2025 property tax bill for 21 Osprey, Hackettstown, NJ was $3,359. The county assessed it at $104,100.

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