Montclair Township, NJ · Essex County · Residential · Block 906, Lot 14
Favorable tax position
The Watchdog Score, powered by the ROBUST Framework. Evidence coverage 55%, low confidence.
Among 9,588 homes in Montclair Township, the typical (median) tax bill is $20,423. This bill is close to the middle.
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.
| Address | Sold | Price |
|---|---|---|
| 540 Up. Mountain AvenueSame street | May 2024 | $999,999 |
| 477 Up. Mountain AvenueSame street | Jun 2024 | $995,000 |
| 464 Up. Mountain AvenueSame street | Oct 2024 | $1,300,000 |
| 277 Up. Mountain AvenueSame street | Jun 2024 | $1,805,000 |
| 222 Up. Mountain AvenueSame street | Nov 2024 | $2,875,000 |
| 280 Up. Mountain AvenueSame street | Jun 2024 | $2,304,000 |
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.
We check the state tax list once a month and email you if the assessment, tax bill or Watchdog Score for 609 Up. Mountain Avenue changes. Unsubscribe any time.
A printable report for 609 Up. Mountain Avenue: tax and assessment, the Watchdog Score, how the bill compares in Montclair Township, recent nearby sales and appeal dates.
The latest annual property tax on the New Jersey tax list is $19,731, on an assessed value of $579,800.
Among 9,588 homes in Montclair Township, the typical (median) tax bill is $20,423. This bill is close to the middle.
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 65 (Favorable tax position).
Yes. Appeals go to the Essex 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.
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