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Single Family ResidenceResidential
$4,274,377$546 / 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 96How 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 $305,000 on Dec 15, 2023

40 CRADLE ROCK RD

PRINCETON, NJ 08540
0
Baths
7,833 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.
2.75 ac
Lot SizeThe size of the land the home sits on, from county records.
2001
Year BuiltThe year the home was originally built, according to county records.

Valuation

$4.3M
$4.1M low$4.4M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$305,000 · Dec 15, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$65,250 (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.$2,387,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$877,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,510,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$2,387,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,387,500

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMERCER
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Johnson Park Elementary SchoolA
Elementary · Grades PK–5 · 1.5 mi
H
Princeton High SchoolB
High · Grades 9–12 · 2.7 mi
M
Princeton Middle SchoolA
Middle · Grades 6–8 · 2.7 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%

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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

40 Cradle Rock 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.

  • Among the most valuable homes in Mercer County
  • Costs more per square foot than 96% of homes in Mercer County
  • Among the largest homes in Princeton 08540
  • Has a bigger lot than 98% of homes in Mercer County
  • Newer than 91% of 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 almost all 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$4,274,377
CheaperTypical $1,006,107Pricier

Pricier than almost all homes nearby

Price per ft²$546
CheaperTypical $426Pricier

Pricier than 76% of homes nearby

Living area7,833 ft²
SmallerTypical 2,244 ft²Bigger

Bigger than almost all homes nearby

Lot size2.75 ac
SmallerTypical 0.29 acBigger

Bigger than 95% of homes nearby

Year built2001
OlderTypical 1986Newer

Newer than 85% of homes nearby

How 40 Cradle Rock Rd ranks against every home in each area.
MeasureThis homePrinceton 08540Mercer County
Estimated valuepricier than$4,274,377almost all homesalmost all homes
Price per ft²pricier than$54676% of homes96% of homes
Living areabigger than7,833 ft²almost all homesalmost all homes
Lot sizebigger than2.75 ac95% of homes98% of homes
Year builtnewer than200185% of homes91% of homes

About 40 Cradle Rock Rd

How much is 40 Cradle Rock Rd, Princeton, NJ worth?

The TopHap Estimate for 40 Cradle Rock Rd, Princeton, NJ is $4,274,377 as of Oct 21, 2026. The likely range is $4,120,556 to $4,428,198. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Cradle Rock Rd, Princeton, NJ last sell?

40 Cradle Rock Rd, Princeton, NJ last sold on Dec 15, 2023 for $305,000, according to the county's recorded deed.

When was 40 Cradle Rock Rd, Princeton, NJ built?

40 Cradle Rock Rd, Princeton, NJ was built in 2001, making it 25 years old.

What schools serve 40 Cradle Rock Rd, Princeton, NJ?

40 Cradle Rock Rd, Princeton, NJ is assigned to Johnson Park Elementary School (elementary), rated A; Princeton High School (high), rated B; Princeton Middle School (middle), rated A. All sit in Princeton Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Cradle Rock Rd, Princeton, NJ compare to other homes in Princeton 08540?

Among the 13,642 homes in Princeton 08540, it is worth more than almost all of them ($4,274,377 against a typical $1,006,107), its price per square foot is higher than 76% of them ($546 against a typical $426), it is bigger than almost all of them (7,833 ft² against a typical 2,244 ft²), its lot is bigger than 95% of them (2.75 ac against a typical 0.29 ac) and it is newer than 85% of them (2001 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 40 Cradle Rock Rd, Princeton, NJ?

The 2025 property tax bill for 40 Cradle Rock Rd, Princeton, NJ was $65,250. The county assessed it at $2,387,500.

More homes on Cradle Rock Rd

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Assigned schools

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