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Single Family ResidenceResidential
$521,723$397 / 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 93How 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 $160,500 on Mar 14, 1997

21 FIRST ST

EDISON, NJ 08837
0
Baths
1,314 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1927
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$522K
$486K low$557K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$160,500 · Mar 14, 1997

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,320 (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.$139,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$76,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$63,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$139,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$139,800

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
87
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.13
ConstructionThe main material the home's frame and walls are built from.Brick
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Herbert Hoover Middle SchoolC+
Middle · Grades 6–8 · 0.3 mi
E
James Monroe Elementary SchoolB
Elementary · Grades KG–5 · 0.5 mi
H
Edison High SchoolC-
High · Grades 9–12 · 2.9 mi

District: Edison Township School District

Neighborhood · ZIP 08837These 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.101
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.106

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.19,280
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,979 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$95,956
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$120,434
Average tempThe average temperature here across a full year.53°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

21 First 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 less than 65% of homes in Middlesex County
  • Costs more per square foot than 70% of homes in Middlesex County
  • Smaller than 70% of homes in Middlesex County
  • Older than 91% of homes in Edison 08837

What homes are worth in Edison 08837

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

This home
$240K$1M

This home is worth more than 38% of homes in Edison 08837.

How it measures up in Edison 08837

The dot is this home. The mark in the middle is the typical home in Edison 08837.

Estimated value$521,723
CheaperTypical $561,048Pricier

Pricier than 38% of homes nearby

Price per ft²$397
CheaperTypical $409Pricier

Pricier than 46% of homes nearby

Living area1,314 ft²
SmallerTypical 1,291 ft²Bigger

Bigger than 51% of homes nearby

Lot size0.13 ac
SmallerTypical 0.14 acBigger

Bigger than 47% of homes nearby

Year built1927
OlderTypical 1961Newer

Newer than 9% of homes nearby

How 21 First St ranks against every home in each area.
MeasureThis homeEdison 08837Middlesex County
Estimated valuepricier than$521,72338% of homes35% of homes
Price per ft²pricier than$39746% of homes70% of homes
Living areabigger than1,314 ft²51% of homes30% of homes
Lot sizebigger than0.13 ac47% of homes43% of homes
Year builtnewer than19279% of homes11% of homes

About 21 First St

How much is 21 First St, Edison, NJ worth?

The TopHap Estimate for 21 First St, Edison, NJ is $521,723 as of Sep 24, 2026. The likely range is $486,277 to $557,169. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 First St, Edison, NJ last sell?

21 First St, Edison, NJ last sold on Mar 14, 1997 for $160,500, according to the county's recorded deed.

How big is 21 First St, Edison, NJ?

21 First St, Edison, NJ has 1,314 square feet of living space and a 0.13-acre lot.

When was 21 First St, Edison, NJ built?

21 First St, Edison, NJ was built in 1927, making it 99 years old. The building has 2 stories.

What schools serve 21 First St, Edison, NJ?

21 First St, Edison, NJ is assigned to Herbert Hoover Middle School (middle), rated C+; James Monroe Elementary School (elementary), rated B; Edison High School (high), rated C-. All sit in Edison Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 First St, Edison, NJ compare to other homes in Edison 08837?

Among the 3,802 homes in Edison 08837, it is worth more than 38% of them ($521,723 against a typical $561,048), its price per square foot is higher than 46% of them ($397 against a typical $409), it is bigger than 51% of them (1,314 ft² against a typical 1,291 ft²), its lot is bigger than 47% of them (0.13 ac against a typical 0.14 ac) and it is newer than 9% of them (1927 against a typical 1961). Measured against all of Middlesex County, it is worth more than 35% 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 First St, Edison, NJ?

The 2025 property tax bill for 21 First St, Edison, NJ was $8,320. The county assessed it at $139,800.

More homes on First St

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