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Single Family ResidenceResidential
$592,543$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 98How 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 $347,900 on Aug 1, 2013

402 KNOLL WAY

ROCKY HILL, NJ 08553
0
Baths
1,796 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.
1,009 ft²
Lot SizeThe size of the land the home sits on, from county records.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$593K
$581K low$604K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$347,900 · Aug 1, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,172 (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.$525,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$185,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$340,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$488,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$525,300

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.45
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
67
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
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
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountySOMERSET
Lot (acres)The size of the land the home sits on, from county records.0.02
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(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
Orchard Hill Elementary School
Elementary · Grades PK–2 · 1.9 mi
M
Montgomery Upper Middle SchoolA+
Middle · Grades 7–8 · 2.0 mi
H
Montgomery High SchoolA-
High · Grades 9–12 · 3.3 mi

District: Montgomery Township School District

Neighborhood · ZIP 08553These 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.83
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.97

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.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.804
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,293 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$134,311
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$217,773
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

402 Knoll Way 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 76% of homes in Rocky Hill 08553
  • Costs less per square foot than 76% of homes in Rocky Hill 08553
  • Smaller than 65% of homes in Rocky Hill 08553
  • Has a smaller lot than 96% of homes in Rocky Hill 08553
  • Newer than 96% of homes in Rocky Hill 08553

What homes are worth in Rocky Hill 08553

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

This home
$424K$1.2M

This home is worth more than 24% of homes in Rocky Hill 08553.

How it measures up in Rocky Hill 08553

The dot is this home. The mark in the middle is the typical home in Rocky Hill 08553.

Estimated value$592,543
CheaperTypical $762,298Pricier

Pricier than 24% of homes nearby

Price per ft²$330
CheaperTypical $360Pricier

Pricier than 24% of homes nearby

Living area1,796 ft²
SmallerTypical 2,174 ft²Bigger

Bigger than 35% of homes nearby

Lot size1,009 ft²
SmallerTypical 0.48 acBigger

Bigger than 4% of homes nearby

Year built1985
OlderTypical 1954Newer

Newer than 96% of homes nearby

How 402 Knoll Way ranks against every home in each area.
MeasureThis homeRocky Hill 08553Somerset County
Estimated valuepricier than$592,54324% of homes41% of homes
Price per ft²pricier than$33024% of homes36% of homes
Living areabigger than1,796 ft²35% of homes45% of homes
Lot sizebigger than1,009 ft²4% of homes14% of homes
Year builtnewer than198596% of homes56% of homes

About 402 Knoll Way

How much is 402 Knoll Way, Rocky Hill, NJ worth?

The TopHap Estimate for 402 Knoll Way, Rocky Hill, NJ is $592,543 as of Aug 30, 2026. The likely range is $581,373 to $603,713. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 402 Knoll Way, Rocky Hill, NJ last sell?

402 Knoll Way, Rocky Hill, NJ last sold on Aug 1, 2013 for $347,900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 402 Knoll Way, Rocky Hill, NJ?

402 Knoll Way, Rocky Hill, NJ has 1,796 square feet of living space and a 0.02-acre lot.

When was 402 Knoll Way, Rocky Hill, NJ built?

402 Knoll Way, Rocky Hill, NJ was built in 1985, making it 41 years old. It is a condo/apartment home. The building has 2 stories.

What schools serve 402 Knoll Way, Rocky Hill, NJ?

402 Knoll Way, Rocky Hill, NJ is assigned to Orchard Hill Elementary School (elementary); Montgomery Upper Middle School (middle), rated A+; Montgomery High School (high), rated A-. All sit in Montgomery Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 402 Knoll Way, Rocky Hill, NJ compare to other homes in Rocky Hill 08553?

Among the 258 homes in Rocky Hill 08553, it is worth more than 24% of them ($592,543 against a typical $762,298), its price per square foot is higher than 24% of them ($330 against a typical $360), it is bigger than 35% of them (1,796 ft² against a typical 2,174 ft²), its lot is bigger than 4% of them (1,009 ft² against a typical 0.48 ac) and it is newer than 96% of them (1985 against a typical 1954). Measured against all of Somerset County, it is worth more than 41% 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 402 Knoll Way, Rocky Hill, NJ?

The 2025 property tax bill for 402 Knoll Way, Rocky Hill, NJ was $10,172. The county assessed it at $525,300.

More homes on Knoll Way

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