521 Valentine St Hackettstown, NJ 07840

ResidentialNew owner since Feb 2, 20262 owner signals on a paid plan
Assessed
$104,300
Last sale
$1Feb 2, 2026
Built
—
Size
1,176 sq ft
Status
No open cases

Property information

Block
100
Lot
11
Qualifier
—
County
Warren
Municipality
Hackettstown Town
Tax map page
15
Land description
53X127

Building details

Building class
—
Description
—
Dwellings
1
Zoning
R125
Square feet
1,176
Acreage
0.15 ac

Assessment

Land value
$86,100
83%
Improvement value
$18,200
17%
Total assessment
$104,300
Sale assessment
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Tax (2024)
$3,566

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.

2 events · 2025–2026

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YearProperty taxChangeLandImprovementAssessment
2024$3,566+1.3%$86,100$18,200$104,300
2023$3,519+5.6%$86,100$18,200$104,300
2022$3,333+2.1%$86,100$18,200$104,300
2021$3,264+2.8%$86,100$18,200$104,300
2020$3,175+0.7%$86,100$18,200$104,300
2019$3,154+2.0%$86,100$18,200$104,300
2018$3,093+1.7%$86,100$18,200$104,300
2017$3,041+4.4%$86,100$18,200$104,300
2016$2,914+3.4%$86,100$18,200$104,300
2015$2,819+3.5%$86,100$18,200$104,300
2014$2,723+3.1%$86,100$18,200$104,300
2013$2,642+1.9%$86,100$18,200$104,300
2012$2,592+1.1%$86,100$18,200$104,300
2011$2,564+7.2%$86,100$18,200$104,300
2010$2,391+2.2%$86,100$18,200$104,300
2009$2,340+4.4%$56,300—$56,300
2008$2,241+3.9%$56,300—$56,300
2007$2,156+4.1%$56,300—$56,300
2006$2,072+3.7%$56,300—$56,300
2005$1,999+7.4%$56,300—$56,300
2004$1,860+7.6%$56,300—$56,300
2003$1,728+6.2%$56,200—$56,200
2002$1,627+72.5%$56,300—$56,300
2001$944+3.4%$56,300—$56,300
2000$913+0.6%$25,500—$25,500
1999$908+5.6%$25,500—$25,500
1998$859+4.7%$25,500—$25,500
1997$821+7.3%$25,500—$25,500
1996$765+6.0%$25,500—$25,500
1995$722+9.3%$25,500—$25,500
1994$660+2.8%$25,500—$25,500
1993$643+4.1%$25,500—$25,500
1992$617-16.6%$25,500—$25,500
1991$7400.0%$25,500—$25,500
1990$740+22.9%$25,500—$25,500
1989$602—$25,500—$25,500