21 Highland Avenue Hackettstown, NJ 07840
Built 1966Residential
- Assessed
- $232,400
- Last sale
- $440,000Dec 9, 2025
- Built
- 1966
- Size
- 1,820 sq ft
- Owner
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- Status
- No open cases
Property information
- Block
- 2001
- Lot
- 5
- Qualifier
- —
- County
- Warren
- Municipality
- Mansfield Twp
- Tax map page
- —
- Land description
- .5 AC.
Building details
- Building class
- 17
- Description
- 2SF
- Dwellings
- 1
- Zoning
- —
- Square feet
- 1,820
- Acreage
- 0.5 ac
Assessment
- Land value
- $98,700
- 42%
- Improvement value
- $133,700
- 58%
- Total assessment
- $232,400
- Sale assessment
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- Tax (2024)
- $8,220
Owner mailing
- Street address
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Property information on this site is compiled from public sources and is provided as-is; we do not guarantee its accuracy.
2 events · 1966–2025
Sales1
- $440,000
Deed recorded
Per sq ft$242Sq ft1,820NU codeEstate / executor (10)RecordedDec 18, 2025 - 60 years
Property Built
County clerks also index recorded documents by address and by the names on them. Search Warren County records
36 years · 1989–2024
| Year | Property tax | Change | Land | Improvement | Assessment |
|---|---|---|---|---|---|
| 2024 | $8,220 | -0.4% | $98,700 | $133,700 | $232,400 |
| 2023 | $8,255 | +1.1% | $98,700 | $133,700 | $232,400 |
| 2022 | $8,164 | +1.0% | $98,700 | $133,700 | $232,400 |
| 2021 | $8,083 | +1.6% | $98,700 | $133,700 | $232,400 |
| 2020 | $7,957 | +1.8% | $98,700 | $133,700 | $232,400 |
| 2019 | $7,820 | +2.2% | $98,700 | $133,700 | $232,400 |
| 2018 | $7,655 | +2.3% | $98,700 | $133,700 | $232,400 |
| 2017 | $7,481 | +2.2% | $98,700 | $133,700 | $232,400 |
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