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Single Family ResidenceResidential
$697,449$480 / 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 Sep 24, 2026
Last sold for $490,000 on Nov 7, 2018

231 JOHN ST

PRINCETON, NJ 08542
0
Baths
1,452 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.
2,052 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$697K
$657K low$738K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$490,000 · Nov 7, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,530 (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.$348,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$215,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$133,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$348,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$348,700

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.0.05
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(5)

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 · 0.2 mi
H
Princeton High SchoolB
High · Grades 9–12 · 0.5 mi
M
Princeton Middle SchoolA
Middle · Grades 6–8 · 0.6 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

231 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 78% of homes in Mercer County
  • Costs more per square foot than 95% of homes in Mercer County
  • Has a smaller lot than 78% of homes in Mercer County
  • Older than 90% 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
$363K$2.2M

This home is worth more than 31% 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$697,449
CheaperTypical $859,992Pricier

Pricier than 31% of homes nearby

Price per ft²$480
CheaperTypical $605Pricier

Pricier than 22% of homes nearby

Living area1,452 ft²
SmallerTypical 1,536 ft²Bigger

Bigger than 46% of homes nearby

Lot size2,052 ft²
SmallerTypical 3,615 ft²Bigger

Bigger than 27% of homes nearby

Year built1900
OlderTypical 1929Newer

Newer than 21% of homes nearby

How 231 John St ranks against every home in each area.
MeasureThis homePrinceton 08542Mercer County
Estimated valuepricier than$697,44931% of homes78% of homes
Price per ft²pricier than$48022% of homes95% of homes
Living areabigger than1,452 ft²46% of homes41% of homes
Lot sizebigger than2,052 ft²27% of homes22% of homes
Year builtnewer than190021% of homes10% of homes

About 231 John St

How much is 231 John St, Princeton, NJ worth?

The TopHap Estimate for 231 John St, Princeton, NJ is $697,449 as of Sep 24, 2026. The likely range is $656,822 to $738,076. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 231 John St, Princeton, NJ last sell?

231 John St, Princeton, NJ last sold on Nov 7, 2018 for $490,000, according to the county's recorded deed.

How big is 231 John St, Princeton, NJ?

231 John St, Princeton, NJ has 1,452 square feet of living space and a 0.05-acre lot.

When was 231 John St, Princeton, NJ built?

231 John St, Princeton, NJ was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 231 John St, Princeton, NJ?

231 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 231 John St, Princeton, NJ compare to other homes in Princeton 08542?

Among the 928 homes in Princeton 08542, it is worth more than 31% of them ($697,449 against a typical $859,992), its price per square foot is higher than 22% of them ($480 against a typical $605), it is bigger than 46% of them (1,452 ft² against a typical 1,536 ft²), its lot is bigger than 27% of them (2,052 ft² against a typical 3,615 ft²) and it is newer than 21% of them (1900 against a typical 1929). Measured against all of Mercer County, it is worth more than 78% 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 231 John St, Princeton, NJ?

The 2025 property tax bill for 231 John St, Princeton, NJ was $9,530. The county assessed it at $348,700.

More homes on John St

Closest homes

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Assigned schools

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