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Single Family ResidenceResidential
$817,373$569 / 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 98How 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 $505,000 on Feb 25, 2021

151 JOHN ST

PRINCETON, NJ 08542
0
Baths
1,436 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.
3,023 ft²
Lot SizeThe size of the land the home sits on, from county records.
1936
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$817K
$801K low$834K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$505,000 · Feb 25, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,921 (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.$436,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$230,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$206,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$436,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$436,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMERCER
Lot (acres)The size of the land the home sits on, from county records.0.07
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
Community Park Elementary SchoolA-
Elementary · Grades PK–5 · 0.4 mi
H
Princeton High SchoolB
High · Grades 9–12 · 0.5 mi
M
Princeton Middle SchoolA
Middle · Grades 6–8 · 0.7 mi

District: Princeton Public Schools

Neighborhood · ZIP 08542These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.94

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.3%
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.4,693
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,960 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$131,081
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,037
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

151 John St 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 84% of homes in Mercer County
  • Costs more per square foot than 97% of homes in Mercer County
  • Has a smaller lot than 70% of homes in Mercer County
  • Older than 72% of homes in Mercer County

What homes are worth in Princeton 08542

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

This home
$362K$2.2M

This home is worth more than 45% of homes in Princeton 08542.

How it measures up in Princeton 08542

The dot is this home. The mark in the middle is the typical home in Princeton 08542.

Estimated value$817,373
CheaperTypical $857,732Pricier

Pricier than 45% of homes nearby

Price per ft²$569
CheaperTypical $608Pricier

Pricier than 41% of homes nearby

Living area1,436 ft²
SmallerTypical 1,538 ft²Bigger

Bigger than 44% of homes nearby

Lot size3,023 ft²
SmallerTypical 3,615 ft²Bigger

Bigger than 36% of homes nearby

Year built1936
OlderTypical 1929Newer

Newer than 71% of homes nearby

How 151 John St ranks against every home in each area.
MeasureThis homePrinceton 08542Mercer County
Estimated valuepricier than$817,37345% of homes84% of homes
Price per ft²pricier than$56941% of homes97% of homes
Living areabigger than1,436 ft²44% of homes40% of homes
Lot sizebigger than3,023 ft²36% of homes30% of homes
Year builtnewer than193671% of homes28% of homes

About 151 John St

How much is 151 John St, Princeton, NJ worth?

The TopHap Estimate for 151 John St, Princeton, NJ is $817,373 as of Sep 24, 2026. The likely range is $800,527 to $834,219. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 151 John St, Princeton, NJ last sell?

151 John St, Princeton, NJ last sold on Feb 25, 2021 for $505,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 151 John St, Princeton, NJ?

151 John St, Princeton, NJ has 1,436 square feet of living space and a 0.07-acre lot.

When was 151 John St, Princeton, NJ built?

151 John St, Princeton, NJ was built in 1936, making it 90 years old. The building has 2 stories.

What schools serve 151 John St, Princeton, NJ?

151 John St, Princeton, NJ is assigned to Community 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 151 John St, Princeton, NJ compare to other homes in Princeton 08542?

Among the 928 homes in Princeton 08542, it is worth more than 45% of them ($817,373 against a typical $857,732), its price per square foot is higher than 41% of them ($569 against a typical $608), it is bigger than 44% of them (1,436 ft² against a typical 1,538 ft²), its lot is bigger than 36% of them (3,023 ft² against a typical 3,615 ft²) and it is newer than 71% of them (1936 against a typical 1929). Measured against all of Mercer County, it is worth more than 84% 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 151 John St, Princeton, NJ?

The 2025 property tax bill for 151 John St, Princeton, NJ was $11,921. The county assessed it at $436,200.

More homes on John St

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Assigned schools

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