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Single Family ResidenceResidential
$520,669$439 / 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 95How 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 $475,000 on Dec 13, 2023

812 KNOPF ST

LINDEN, NJ 07036
0
Baths
1,185 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1943
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

$521K
$494K low$547K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$475,000 · Dec 13, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,468 (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.$128,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$59,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$69,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$128,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$128,900

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.2 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyUNION
Lot (acres)The size of the land the home sits on, from county records.0.12
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(1)

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
School #8C
Elementary · Grades PK–5 · 0.2 mi
H
Linden High SchoolD
High · Grades 9–12 · 0.7 mi
M
McManus Middle SchoolC
Middle · Grades 6–8 · 1.0 mi

District: Linden City School District

Neighborhood · ZIP 07036These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.109

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.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.7%
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.46,375
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,133 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,437
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,908
Average tempThe average temperature here across a full year.54°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

812 Knopf 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 78% of homes in Union County
  • Smaller than 83% of homes in Union County
  • Has a smaller lot than 73% of homes in Union County
  • Older than 66% of homes in Linden 07036

What homes are worth in Linden 07036

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

This home
$251K$903K

This home is worth more than 34% of homes in Linden 07036.

How it measures up in Linden 07036

The dot is this home. The mark in the middle is the typical home in Linden 07036.

Estimated value$520,669
CheaperTypical $572,441Pricier

Pricier than 34% of homes nearby

Price per ft²$439
CheaperTypical $462Pricier

Pricier than 44% of homes nearby

Living area1,185 ft²
SmallerTypical 1,188 ft²Bigger

Bigger than 50% of homes nearby

Lot size0.11 ac
SmallerTypical 0.11 acBigger

Bigger than 50% of homes nearby

Year built1943
OlderTypical 1953Newer

Newer than 34% of homes nearby

How 812 Knopf St ranks against every home in each area.
MeasureThis homeLinden 07036Union County
Estimated valuepricier than$520,66934% of homes22% of homes
Price per ft²pricier than$43944% of homes61% of homes
Living areabigger than1,185 ft²50% of homes17% of homes
Lot sizebigger than0.11 ac50% of homes27% of homes
Year builtnewer than194334% of homes42% of homes

About 812 Knopf St

How much is 812 Knopf St, Linden, NJ worth?

The TopHap Estimate for 812 Knopf St, Linden, NJ is $520,669 as of Sep 24, 2026. The likely range is $493,853 to $547,485. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 812 Knopf St, Linden, NJ last sell?

812 Knopf St, Linden, NJ last sold on Dec 13, 2023 for $475,000, according to the county's recorded deed.

How big is 812 Knopf St, Linden, NJ?

812 Knopf St, Linden, NJ has 1,185 square feet of living space and a 0.12-acre lot.

When was 812 Knopf St, Linden, NJ built?

812 Knopf St, Linden, NJ was built in 1943, making it 83 years old. The building has 2 stories.

What schools serve 812 Knopf St, Linden, NJ?

812 Knopf St, Linden, NJ is assigned to School #8 (elementary), rated C; Linden High School (high), rated D; McManus Middle School (middle), rated C. All sit in Linden City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 812 Knopf St, Linden, NJ compare to other homes in Linden 07036?

Among the 10,875 homes in Linden 07036, it is worth more than 34% of them ($520,669 against a typical $572,441), its price per square foot is higher than 44% of them ($439 against a typical $462), it is bigger than 50% of them (1,185 ft² against a typical 1,188 ft²), its lot is bigger than 50% of them (0.11 ac against a typical 0.11 ac) and it is newer than 34% of them (1943 against a typical 1953). Measured against all of Union County, it is worth more than 22% 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 812 Knopf St, Linden, NJ?

The 2025 property tax bill for 812 Knopf St, Linden, NJ was $9,468. The county assessed it at $128,900.

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