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Single Family ResidenceResidential
$3,395,328$783 / 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 95How 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 $1,255,000 on Aug 9, 2002

21 HARTSHORNE LN

RUMSON, NJ 07760
4
Beds
4
Baths
4,336 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.
1.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$3.4M
$3.2M low$3.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,255,000 · Aug 9, 2002
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.$2,395,328
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$1,916,262
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.29%
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.$1,000,000
JPMORGAN CHASE BANK NA · 2.5% 1 · recorded Feb 22, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$24,961 (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.$2,708,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,983,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$724,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,379,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,708,200

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.34
99
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
25
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
47
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.48 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.85%
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
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyMONMOUTH
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 62 ft²Patio · 772 ft²

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

H
Rumson-Fair Haven Regional High SchoolA+
High · Grades 9–12 · 0.8 mi
M
Forrestdale SchoolA
Middle · Grades 4–8 · 0.9 mi
E
Deane-Porter SchoolA+
Elementary · Grades PK–3 · 1.0 mi

District: Rumson Borough School District

Neighborhood · ZIP 07760These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.114
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.87

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.45%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
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.9,274
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.841 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$219,842
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$337,570
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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.Owner occupied
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 Hartshorne Ln 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 98% of homes in Monmouth County
  • Costs more per square foot than 94% of homes in Monmouth County
  • Bigger than 96% of homes in Monmouth County
  • Has a bigger lot than 90% of homes in Monmouth County

What homes are worth in Rumson 07760

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

This home
$497K$6.3M

This home is worth more than 80% of homes in Rumson 07760.

How it measures up in Rumson 07760

The dot is this home. The mark in the middle is the typical home in Rumson 07760.

Estimated value$3,395,328
CheaperTypical $1,947,733Pricier

Pricier than 80% of homes nearby

Price per ft²$783
CheaperTypical $752Pricier

Pricier than 60% of homes nearby

Living area4,336 ft²
SmallerTypical 2,556 ft²Bigger

Bigger than 79% of homes nearby

Lot size1.1 ac
SmallerTypical 0.27 acBigger

Bigger than 73% of homes nearby

Year built1963
OlderTypical 1972Newer

Newer than 43% of homes nearby

How 21 Hartshorne Ln ranks against every home in each area.
MeasureThis homeRumson 07760Monmouth County
Estimated valuepricier than$3,395,32880% of homes98% of homes
Price per ft²pricier than$78360% of homes94% of homes
Living areabigger than4,336 ft²79% of homes96% of homes
Lot sizebigger than1.1 ac73% of homes90% of homes
Year builtnewer than196343% of homes38% of homes

About 21 Hartshorne Ln

How much is 21 Hartshorne Ln, Rumson, NJ worth?

The TopHap Estimate for 21 Hartshorne Ln, Rumson, NJ is $3,395,328 as of Jul 14, 2026. The likely range is $3,237,486 to $3,553,170. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Hartshorne Ln, Rumson, NJ last sell?

21 Hartshorne Ln, Rumson, NJ last sold on Aug 9, 2002 for $1,255,000, according to the county's recorded deed.

How big is 21 Hartshorne Ln, Rumson, NJ?

21 Hartshorne Ln, Rumson, NJ has 4 bedrooms, 4 bathrooms and 4,336 square feet of living space.

When was 21 Hartshorne Ln, Rumson, NJ built?

21 Hartshorne Ln, Rumson, NJ was built in 1963, making it 63 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Hartshorne Ln, Rumson, NJ?

21 Hartshorne Ln, Rumson, NJ is assigned to Rumson-Fair Haven Regional High School (high), rated A+; Forrestdale School (middle), rated A; Deane-Porter School (elementary), rated A+. All sit in Rumson Borough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Hartshorne Ln, Rumson, NJ compare to other homes in Rumson 07760?

Among the 3,961 homes in Rumson 07760, it is worth more than 80% of them ($3,395,328 against a typical $1,947,733), its price per square foot is higher than 60% of them ($783 against a typical $752), it is bigger than 79% of them (4,336 ft² against a typical 2,556 ft²), its lot is bigger than 73% of them (1.1 ac against a typical 0.27 ac) and it is newer than 43% of them (1963 against a typical 1972). Measured against all of Monmouth County, it is worth more than 98% 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 Hartshorne Ln, Rumson, NJ?

The 2025 property tax bill for 21 Hartshorne Ln, Rumson, NJ was $24,961. The county assessed it at $2,708,200.

Closest homes

More homes in Rumson 07760

Assigned schools

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