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2100 Kay Ave

Union Township, NJ · Union County · Residential · Block 5214, Lot 18

Watchdog Score

How it works
61/100

Typical or mixed tax position

The Watchdog Score, powered by the ROBUST Framework. Evidence coverage 55%, low confidence.

  • RRecourse18
  • OOverassessment Positionn/a
  • BBurden69
  • UUniformity71
  • SStabilityn/a
  • TTrajectoryn/a

Property tax

Compare towns
$9,719Latest annual tax
$10,4022025 estimate
$44,600Assessed value
$10,416Union Township median
$23.3232025 rate

Among 15,730 homes in Union Township, the typical (median) tax bill is $10,416. This bill is lower than about 65% of them.

Town tax rate per $100
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25

Sales

Nearby sales
$450,000 on November 7, 2024This property's last sale
554Similar sales since 2023
$539,500Median price

Is this your home?

Claim it to follow its assessment, tax and score in your Watchdog account. Once ownership is verified, you can add a photo that shows wherever this address appears on Watchdog.

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Recent sales nearby

AddressSoldPriceBuilt
2162 Kay AveSame streetNov 2023$540,0001948
2087 Lentz AveMar 2024$485,0001936
2045 Lentz AveOct 2024$445,0001937
2037 Gless AveJul 2024$266,0001930
2025 Gless AveMar 2024$410,0001929
2088 Lentz AveFeb 2024$390,0001930

Same property type in the same town, same street first. Prices come from the state tax list, which runs about a year behind, and can include sales between relatives or other non-market transfers.

Homeowner tools

  • Could an appeal lower this bill?The appeal estimator opens with this property's assessment and the town tax rate filled in.
  • Appeal deadlinesUsually April 1 (May 1 after a town-wide revaluation), or 45 days after assessment notices go out if later.
  • ANCHOR, Senior Freeze and Stay NJCheck which state property tax relief programs apply.
  • Buying here?Monthly cost with the real tax bill included.
  • Selling? CO requirementsResale certificate of occupancy and smoke detector certificate rules for Union Township.
  • Union Township property taxesTypical bill, tax rate and appeal deadline for the town.
  • MapOpen this address in Google Maps.

Property record

Block / lot
5214 / 18
Property class
Residential (2)
Year built
1937
Building
B1SCBG1
Dwelling units
1
Lot size
0.12 acres
Land value
$20,000
Improvement value
$24,600
County
Union County

Same block

  • 2107 Lentz Ave$9,544 tax
  • 1304 Barbara Ave$9,589 tax
  • 1308 Barbara Ave$9,142 tax
  • 1312 Barbara Ave$9,343 tax
  • 1314 Barbara Ave$9,991 tax
  • 2086 Kay Ave$9,052 tax
  • 2090 Kay Ave$10,684 tax
  • 2094 Kay Ave$8,963 tax

Get alerts for this property

We check the state tax list once a month and email you if the assessment, tax bill or Watchdog Score for 2100 Kay Ave changes. Unsubscribe any time.

Property report (PDF)

A printable report for 2100 Kay Ave: tax and assessment, the Watchdog Score, how the bill compares in Union Township, recent nearby sales and appeal dates.

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Questions

How much are the property taxes at 2100 Kay Ave?

The latest annual property tax on the New Jersey tax list is $9,719, on an assessed value of $44,600.

How does this tax bill compare with others in Union Township?

Among 15,730 homes in Union Township, the typical (median) tax bill is $10,416. This bill is lower than about 65% of them.

What is the Watchdog Score?

The Watchdog Score, powered by the ROBUST Framework, rates a property's tax position from 0 to 100 using six kinds of public evidence. Higher is better. This property scores 61 (Typical or mixed tax position).

Can the assessment be appealed?

Yes. Appeals go to the Union County Board of Taxation. In most towns the deadline is April 1 (May 1 after a town-wide revaluation), or 45 days after assessment notices are mailed if that is later.

Does Watchdog show who owns this property?

No. Watchdog does not show owner names or mailing addresses. Everything on this page comes from public tax and parcel records.

Source: New Jersey MOD-IV tax list and NJ Office of GIS parcel data, refreshed monthly (last refresh October 2026). Town tax rates from the NJ Division of Taxation. Watchdog does not show owner names. How we get our numbers

Photo by Zac Gudakov on Unsplash
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