Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$2,129,471$274 / 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 81How 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 $700,000 on Dec 18, 2000

30 CASTLE HOWARD CT

PRINCETON, NJ 08540
0
Baths
7,776 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.
1.71 ac
Lot SizeThe size of the land the home sits on, from county records.
1790
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$2.1M
$1.7M low$2.5M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$700,000 · Dec 18, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$41,167 (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.$1,506,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$671,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$835,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,506,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,506,300

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMERCER
ConstructionThe main material the home's frame and walls are built from.Concrete Blocks
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Riverside Elementary SchoolA+
Elementary · Grades PK–5 · 0.2 mi
M
Princeton Middle SchoolA
Middle · Grades 6–8 · 1.1 mi
H
Princeton High SchoolB
High · Grades 9–12 · 1.1 mi

District: Princeton Public Schools

Neighborhood · ZIP 08540These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.5%
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.53,074
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,031 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$158,898
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$213,931
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Owner Tools

Do you own this home?
Claim this home

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

30 Castle Howard Ct 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.

  • Among the most valuable homes in Mercer County
  • Costs less per square foot than 97% of homes in Princeton 08540
  • Among the largest homes in Princeton 08540
  • Has a bigger lot than 96% of homes in Mercer County
  • Among the oldest homes in Mercer County

What homes are worth in Princeton 08540

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

This home
$305K$3.3M

This home is worth more than 91% of homes in Princeton 08540.

How it measures up in Princeton 08540

The dot is this home. The mark in the middle is the typical home in Princeton 08540.

Estimated value$2,129,471
CheaperTypical $1,006,107Pricier

Pricier than 91% of homes nearby

Price per ft²$274
CheaperTypical $426Pricier

Pricier than 3% of homes nearby

Living area7,776 ft²
SmallerTypical 2,244 ft²Bigger

Bigger than almost all homes nearby

Lot size1.71 ac
SmallerTypical 0.29 acBigger

Bigger than 88% of homes nearby

Year built1790
OlderTypical 1986Newer

Older than almost all homes nearby

How 30 Castle Howard Ct ranks against every home in each area.
MeasureThis homePrinceton 08540Mercer County
Estimated valuepricier than$2,129,47191% of homesalmost all homes
Price per ft²pricier than$2743% of homes50% of homes
Living areabigger than7,776 ft²almost all homesalmost all homes
Lot sizebigger than1.71 ac88% of homes96% of homes
Year builtnewer than1790almost no homesalmost no homes

About 30 Castle Howard Ct

How much is 30 Castle Howard Ct, Princeton, NJ worth?

The TopHap Estimate for 30 Castle Howard Ct, Princeton, NJ is $2,129,471 as of Oct 21, 2026. The likely range is $1,720,149 to $2,538,793. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Castle Howard Ct, Princeton, NJ last sell?

30 Castle Howard Ct, Princeton, NJ last sold on Dec 18, 2000 for $700,000, according to the county's recorded deed.

When was 30 Castle Howard Ct, Princeton, NJ built?

30 Castle Howard Ct, Princeton, NJ was built in 1790, making it 236 years old. The building has 2 stories.

What schools serve 30 Castle Howard Ct, Princeton, NJ?

30 Castle Howard Ct, Princeton, NJ is assigned to Riverside Elementary School (elementary), rated A+; Princeton Middle School (middle), rated A; Princeton High School (high), rated B. All sit in Princeton Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 30 Castle Howard Ct, Princeton, NJ compare to other homes in Princeton 08540?

Among the 13,642 homes in Princeton 08540, it is worth more than 91% of them ($2,129,471 against a typical $1,006,107), its price per square foot is higher than 3% of them ($274 against a typical $426), it is bigger than almost all of them (7,776 ft² against a typical 2,244 ft²), its lot is bigger than 88% of them (1.71 ac against a typical 0.29 ac) and it is newer than almost none of them (1790 against a typical 1986). Measured against all of Mercer County, it is worth more than almost all 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 30 Castle Howard Ct, Princeton, NJ?

The 2025 property tax bill for 30 Castle Howard Ct, Princeton, NJ was $41,167. The county assessed it at $1,506,300.

More homes on Castle Howard Ct

Closest homes

More homes in Princeton 08540

Assigned schools

Explore the area

See this home in context

Open 30 Castle Howard Ct on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map