NJ ANCHOR Support★ out of 5 stars Real Estate Agents
Your Watchdog

My dashboard
Check ANCHOR and Stay NJ How NJ appeals work
See homes on this block

40 Gropp Ave

Hamilton Township, NJ · Mercer County · Residential · Block 2527, Lot 15

Watchdog Score

How it works
80/100

Strong tax position

The Watchdog Score, powered by the ROBUST Framework. Evidence coverage 85%, high confidence.

  • RRecourse90
  • OOverassessment Position95
  • BBurden68
  • UUniformity63
  • SStabilityn/a
  • TTrajectory100

Property tax

Compare towns
$7,732Latest annual tax
$8,9472025 estimate
$241,300Assessed value
$7,333Hamilton Township median
$3.7082025 rate

Among 29,413 homes in Hamilton Township, the typical (median) tax bill is $7,333. This bill is higher than about 56% of them.

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

Sales

Nearby sales
$475,000 on July 11, 2024This property's last sale
1,206Similar sales since 2023
$385,000Median 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.

Claim this home Add a photo

Recent sales nearby

AddressSoldPriceBuilt
110 Gropp AveSame streetOct 2024$410,0001963
361 Gropp AveSame streetSep 2024$530,0001960
163 Locust Ave WestMay 2024$415,0001956
173 Locust Ave WestFeb 2024$429,0001956
84 Phillips AveNov 2024$285,0001939
1971 Mcgalliard AveAug 2024$540,0001900

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 Hamilton Township.
  • Hamilton Township property taxesTypical bill, tax rate and appeal deadline for the town.
  • MapOpen this address in Google Maps.

Property record

Block / lot
2527 / 15
Property class
Residential (2)
Year built
1952
Building
1S B
Dwelling units
1
Lot size
0.58 acres
Land value
$62,100
Improvement value
$179,200
County
Mercer County

Same block

  • 31 Lacy Ave$6,974 tax
  • 155 Locust Ave West$7,178 tax
  • 163 Locust Ave West$8,391 tax
  • 173 Locust Ave West$10,153 tax
  • 3332 Broad St$8,274 tax
  • 3308-3310 Broad St$9,078 tax
  • 3304 Broad St$4,810 tax
  • 103 Locust Ave West$6,593 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 40 Gropp Ave changes. Unsubscribe any time.

Property report (PDF)

A printable report for 40 Gropp Ave: tax and assessment, the Watchdog Score, how the bill compares in Hamilton Township, recent nearby sales and appeal dates.

Share

TextEmailFacebookXLinkedIn

Questions

How much are the property taxes at 40 Gropp Ave?

The latest annual property tax on the New Jersey tax list is $7,732, on an assessed value of $241,300.

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

Among 29,413 homes in Hamilton Township, the typical (median) tax bill is $7,333. This bill is higher than about 56% 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 80 (Strong tax position).

Can the assessment be appealed?

Yes. Appeals go to the Mercer 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
Privacy Terms Contact