42 Slope Drive Hackettstown, NJ 07840

Built 1966 · ResidentialNew owner since Nov 11, 20252 owner signals on a paid plan
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Assessed
$211,300
Last sale
$490,000Nov 11, 2025
Built
1966
Size
1,608 sq ft
Owner
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Status
No open cases

Property information

Block
1903
Lot
12
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
1,608
Acreage
0.5 ac

Assessment

Land value
$80,000
38%
Improvement value
$131,300
62%
Total assessment
$211,300
Sale assessment
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Tax (2024)
$7,474

Owner mailing

Street address

Property information on this site is compiled from public sources and is provided as-is; we do not guarantee its accuracy.

6 events · 1966–2025

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  • Deed recorded

    +36% vs 2008
    $490,000
    Per sq ft$305Held17.3 yrsSq ft1,608RecordedDec 3, 2025
  • 17 years

  • Deed recorded

    +89% vs 2001
    $360,000
    Held1.6 yrsRecordedJul 28, 2008
  • 7 years

  • Deed recorded

    +17% vs 1987
    $190,000
    Held14.1 yrs
  • 14 years

  • Deed recorded

    $162,900
  • 21 years

  • Property Built

County clerks also index recorded documents by address and by the names on them. Search Warren County records

YearProperty taxChangeLandImprovementAssessment
2024$7,474-0.4%$80,000$131,300$211,300
2023$7,505+1.1%$80,000$131,300$211,300
2022$7,423+1.0%$80,000$131,300$211,300
2021$7,349+1.6%$80,000$131,300$211,300
2020$7,235+1.8%$80,000$131,300$211,300
2019$7,110+2.2%$80,000$131,300$211,300
2018$6,960+2.3%$80,000$131,300$211,300
2017$6,802+2.2%$80,000$131,300$211,300
2016$6,658+3.3%$80,000$131,300$211,300
2015$6,447-10.8%$80,000$131,300$211,300
2014$7,225+1.8%$80,000$131,300$211,300
2013$7,099+0.2%$95,000$135,400$230,400
2012$7,083+1.4%$95,000$135,400$230,400
2011$6,983+1.8%$95,000$135,400$230,400
2010$6,857+3.5%$95,000$135,400$230,400
2009$6,624+3.4%$95,000$135,400$230,400
2008$6,405+0.7%$95,000$135,400$230,400
2007$6,359+8.7%$95,000$135,400$230,400
2006$5,852+5.0%$95,000$135,400$230,400
2005$5,576+8.5%$95,000$135,400$230,400
2004$5,138+3.7%$95,000$135,400$230,400
2003$4,954+7.4%$95,000$135,400$230,400
2002$4,613+4.2%$37,500$85,500$123,000
2001$4,428+2.3%$37,500$85,500$123,000
2000$4,3300.0%$37,500$85,500$123,000
1999$4,330+2.6%$37,500$85,500$123,000
1998$4,219+7.5%$37,500$85,500$123,000
1997$3,924+9.6%$37,500$85,500$123,000
1996$3,579+3.6%$37,500$85,500$123,000
1995$3,456+24.3%$37,500$85,500$123,000
1994$2,780+3.2%$37,500$85,500$123,000
1993$2,694-4.8%$37,500$85,500$123,000
1992$2,829-13.2%$37,500$85,500$123,000
1991$3,2600.0%$37,500$85,500$123,000
1990$3,260+10.0%$37,500$85,500$123,000
1989$2,964—$37,500$85,500$123,000

All 18 lots on Block 1903