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Single Family ResidenceResidential
$1,355,170$277 / 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 Oct 21, 2026
Last sold for $901,000 on Jul 3, 2004

21 CASTLEHILL DR

MARLBORO, NJ 07746
5
Beds
2.5
Baths
4,888 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.
1.93 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.4M
$1.3M low$1.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$901,000 · Jul 3, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$25,259 (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.$967,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$275,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$691,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$967,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$967,400

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
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 1,969 ft²

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.

H
Marlboro High SchoolB
High · Grades 9–12 · 2.1 mi
E
Marlboro Elementary SchoolA
Elementary · Grades KG–5 · 2.5 mi
M
Marlboro Middle SchoolA-
Middle · Grades 6–8 · 3.0 mi

District: Freehold Regional School District

Neighborhood · ZIP 07746These 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.4
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.90

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.19,414
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,505 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$176,363
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$220,395
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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 Castlehill Dr 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 92% of homes in Marlboro 07746
  • Costs less per square foot than 94% of homes in Marlboro 07746
  • Bigger than 97% of homes in Marlboro 07746
  • Has a bigger lot than 97% of homes in Marlboro 07746
  • Newer than 86% of homes in Marlboro 07746

What homes are worth in Marlboro 07746

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

This home
$406K$1.7M

This home is worth more than 92% of homes in Marlboro 07746.

How it measures up in Marlboro 07746

The dot is this home. The mark in the middle is the typical home in Marlboro 07746.

Estimated value$1,355,170
CheaperTypical $868,987Pricier

Pricier than 92% of homes nearby

Price per ft²$277
CheaperTypical $345Pricier

Pricier than 6% of homes nearby

Living area4,888 ft²
SmallerTypical 2,562 ft²Bigger

Bigger than 97% of homes nearby

Lot size1.93 ac
SmallerTypical 0.46 acBigger

Bigger than 97% of homes nearby

Year built2002
OlderTypical 1985Newer

Newer than 86% of homes nearby

How 21 Castlehill Dr ranks against every home in each area.
MeasureThis homeMarlboro 07746Monmouth County
Estimated valuepricier than$1,355,17092% of homes86% of homes
Price per ft²pricier than$2776% of homes6% of homes
Living areabigger than4,888 ft²97% of homes97% of homes
Lot sizebigger than1.93 ac97% of homes95% of homes
Year builtnewer than200286% of homes86% of homes

About 21 Castlehill Dr

How much is 21 Castlehill Dr, Marlboro, NJ worth?

The TopHap Estimate for 21 Castlehill Dr, Marlboro, NJ is $1,355,170 as of Oct 21, 2026. The likely range is $1,274,247 to $1,436,093. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Castlehill Dr, Marlboro, NJ last sell?

21 Castlehill Dr, Marlboro, NJ last sold on Jul 3, 2004 for $901,000, according to the county's recorded deed.

How big is 21 Castlehill Dr, Marlboro, NJ?

21 Castlehill Dr, Marlboro, NJ has 5 bedrooms, 2.5 bathrooms and 4,888 square feet of living space.

When was 21 Castlehill Dr, Marlboro, NJ built?

21 Castlehill Dr, Marlboro, NJ was built in 2002, making it 24 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Castlehill Dr, Marlboro, NJ?

21 Castlehill Dr, Marlboro, NJ is assigned to Marlboro High School (high), rated B; Marlboro Elementary School (elementary), rated A; Marlboro Middle School (middle), rated A-. All sit in Freehold Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Castlehill Dr, Marlboro, NJ compare to other homes in Marlboro 07746?

Among the 6,504 homes in Marlboro 07746, it is worth more than 92% of them ($1,355,170 against a typical $868,987), its price per square foot is higher than 6% of them ($277 against a typical $345), it is bigger than 97% of them (4,888 ft² against a typical 2,562 ft²), its lot is bigger than 97% of them (1.93 ac against a typical 0.46 ac) and it is newer than 86% of them (2002 against a typical 1985). Measured against all of Monmouth County, it is worth more than 86% 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 Castlehill Dr, Marlboro, NJ?

The 2025 property tax bill for 21 Castlehill Dr, Marlboro, NJ was $25,259. The county assessed it at $967,400.

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