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Single Family ResidenceResidential
$850,249$330 / 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 Aug 30, 2026
Last sold for $496,000 on Jun 13, 2017

17 GEMMA CT

PISCATAWAY, NJ 08854
0
Baths
2,576 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$850K
$814K low$887K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$496,000 · Jun 13, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,288 (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.$793,100 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$371,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$421,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$736,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$793,100

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.0.43
ConstructionThe main material the home's frame and walls are built from.Brick
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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.

H
Piscataway High SchoolB-
High · Grades 9–12 · 1.1 mi
M
Conackamack Middle SchoolC
Middle · Grades 6–8 · 1.1 mi
E
Knollwood Elementary SchoolA-
Elementary · Grades KG–3 · 1.7 mi

District: Piscataway Township School District

Neighborhood · ZIP 08854These 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.57
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 100.103

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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.63,382
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,298 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,616
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$138,705
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

17 Gemma 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.

  • Worth more than 93% of homes in Piscataway 08854
  • Costs less per square foot than 72% of homes in Piscataway 08854
  • Bigger than 90% of homes in Piscataway 08854
  • Has a bigger lot than 90% of homes in Middlesex County
  • Newer than 78% of homes in Middlesex County

What homes are worth in Piscataway 08854

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

This home
$345K$1M

This home is worth more than 93% of homes in Piscataway 08854.

How it measures up in Piscataway 08854

The dot is this home. The mark in the middle is the typical home in Piscataway 08854.

Estimated value$850,249
CheaperTypical $582,132Pricier

Pricier than 93% of homes nearby

Price per ft²$330
CheaperTypical $356Pricier

Pricier than 28% of homes nearby

Living area2,576 ft²
SmallerTypical 1,624 ft²Bigger

Bigger than 90% of homes nearby

Lot size0.43 ac
SmallerTypical 0.23 acBigger

Bigger than 87% of homes nearby

Year built1990
OlderTypical 1973Newer

Newer than 72% of homes nearby

How 17 Gemma Ct ranks against every home in each area.
MeasureThis homePiscataway 08854Middlesex County
Estimated valuepricier than$850,24993% of homes86% of homes
Price per ft²pricier than$33028% of homes33% of homes
Living areabigger than2,576 ft²90% of homes87% of homes
Lot sizebigger than0.43 ac87% of homes90% of homes
Year builtnewer than199072% of homes78% of homes

About 17 Gemma Ct

How much is 17 Gemma Ct, Piscataway, NJ worth?

The TopHap Estimate for 17 Gemma Ct, Piscataway, NJ is $850,249 as of Aug 30, 2026. The likely range is $813,890 to $886,608. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 17 Gemma Ct, Piscataway, NJ last sell?

17 Gemma Ct, Piscataway, NJ last sold on Jun 13, 2017 for $496,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 17 Gemma Ct, Piscataway, NJ?

17 Gemma Ct, Piscataway, NJ has 2,576 square feet of living space and a 0.43-acre lot.

When was 17 Gemma Ct, Piscataway, NJ built?

17 Gemma Ct, Piscataway, NJ was built in 1990, making it 36 years old. The building has 2 stories.

What schools serve 17 Gemma Ct, Piscataway, NJ?

17 Gemma Ct, Piscataway, NJ is assigned to Piscataway High School (high), rated B-; Conackamack Middle School (middle), rated C; Knollwood Elementary School (elementary), rated A-. All sit in Piscataway Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 17 Gemma Ct, Piscataway, NJ compare to other homes in Piscataway 08854?

Among the 13,708 homes in Piscataway 08854, it is worth more than 93% of them ($850,249 against a typical $582,132), its price per square foot is higher than 28% of them ($330 against a typical $356), it is bigger than 90% of them (2,576 ft² against a typical 1,624 ft²), its lot is bigger than 87% of them (0.43 ac against a typical 0.23 ac) and it is newer than 72% of them (1990 against a typical 1973). Measured against all of Middlesex County, it is worth more than 86% 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 17 Gemma Ct, Piscataway, NJ?

The 2025 property tax bill for 17 Gemma Ct, Piscataway, NJ was $13,288. The county assessed it at $793,100.

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