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Single Family ResidenceResidential
$548,981$163 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $190,000 on Dec 21, 2012

70 MERTZ AVE

HILLSIDE, NJ 07205
0
Baths
3,360 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1919
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$549K
$496K low$602K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$190,000 · Dec 21, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,752 (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.$143,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$74,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$69,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$143,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$143,300

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.Colonial
CountyUNION
Lot (acres)The size of the land the home sits on, from county records.0.26
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(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(10)

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

M
Krumbiegel Middle SchoolD-
Middle · Grades 6–8 · 0.2 mi
E
Morris Early Childhood Center
Elementary · Grades PK–1 · 0.5 mi
H
Hillside High SchoolD
High · Grades 9–12 · 1.0 mi

District: Hillside Township School District

Neighborhood · ZIP 07205These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.108

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.22,864
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,391 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,810
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,567
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

70 Mertz Ave 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 72% of homes in Union County
  • Among the lowest price per square foot in Union County
  • Bigger than 96% of homes in Hillside 07205
  • Has a bigger lot than 97% of homes in Hillside 07205
  • Older than 88% of homes in Union County

What homes are worth in Hillside 07205

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

This home
$316K$829K

This home is worth more than 58% of homes in Hillside 07205.

How it measures up in Hillside 07205

The dot is this home. The mark in the middle is the typical home in Hillside 07205.

Estimated value$548,981
CheaperTypical $531,988Pricier

Pricier than 58% of homes nearby

Price per ft²$163
CheaperTypical $324Pricier

Cheaper than almost all homes nearby

Living area3,360 ft²
SmallerTypical 1,620 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.26 ac
SmallerTypical 4,182 ft²Bigger

Bigger than 97% of homes nearby

Year built1919
OlderTypical 1929Newer

Newer than 16% of homes nearby

How 70 Mertz Ave ranks against every home in each area.
MeasureThis homeHillside 07205Union County
Estimated valuepricier than$548,98158% of homes28% of homes
Price per ft²pricier than$163almost no homesalmost no homes
Living areabigger than3,360 ft²96% of homes93% of homes
Lot sizebigger than0.26 ac97% of homes79% of homes
Year builtnewer than191916% of homes12% of homes

About 70 Mertz Ave

How much is 70 Mertz Ave, Hillside, NJ worth?

The TopHap Estimate for 70 Mertz Ave, Hillside, NJ is $548,981 as of Oct 21, 2026. The likely range is $495,812 to $602,150. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 70 Mertz Ave, Hillside, NJ last sell?

70 Mertz Ave, Hillside, NJ last sold on Dec 21, 2012 for $190,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 70 Mertz Ave, Hillside, NJ?

70 Mertz Ave, Hillside, NJ has 3,360 square feet of living space and a 0.26-acre lot.

When was 70 Mertz Ave, Hillside, NJ built?

70 Mertz Ave, Hillside, NJ was built in 1919, making it 107 years old. It is a colonial home. The building has 2 stories.

What schools serve 70 Mertz Ave, Hillside, NJ?

70 Mertz Ave, Hillside, NJ is assigned to Krumbiegel Middle School (middle), rated D-; Morris Early Childhood Center (elementary); Hillside High School (high), rated D. All sit in Hillside Township School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 70 Mertz Ave, Hillside, NJ compare to other homes in Hillside 07205?

Among the 5,784 homes in Hillside 07205, it is worth more than 58% of them ($548,981 against a typical $531,988), its price per square foot is higher than almost none of them ($163 against a typical $324), it is bigger than 96% of them (3,360 ft² against a typical 1,620 ft²), its lot is bigger than 97% of them (0.26 ac against a typical 4,182 ft²) and it is newer than 16% of them (1919 against a typical 1929). Measured against all of Union County, it is worth more than 28% 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 70 Mertz Ave, Hillside, NJ?

The 2025 property tax bill for 70 Mertz Ave, Hillside, NJ was $12,752. The county assessed it at $143,300.

More homes on Mertz Ave

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