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646 Mountain Avenue Berkeley Heights, NJ 07922

Built 1953Residential
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Assessed
$232,600
Last sale
$2,050,118Apr 16, 2026
Built
1953
Size
1,690 sq ft
Owner
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Status
No open cases

Property information

Block
3201
Lot
8
Qualifier
—
County
Union
Municipality
Berkeley Heights Twp
Tax map page
—
Land description
.340 AC

Building details

Building class
16
Description
1SF2G
Dwellings
1
Zoning
R-15
Square feet
1,690
Acreage
0.34 ac

Assessment

Land value
$146,300
63%
Improvement value
$86,300
37%
Total assessment
$232,600
Sale assessment
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Tax (2024)
$9,238

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.

  1. Home
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  3. NJ Property Records
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  5. Union County
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  7. Berkeley Heights Twp
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  9. Block 3201
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  11. 646 Mountain Avenue, Berkeley Heights, NJ 07922

4 events · 1953–2026
Sales3
  • 2026Apr 16

    Deed recorded

    +1267% vs 2025
    $2,050,118
    Per sq ft$1,213Held10 moSq ft1,690NU codeImproved post-assessment (7)RecordedApr 21, 2026

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  • 2025Jun 10

    Deed recorded

    -70% vs 2023
    $150,000
    Per sq ft$89Held1.8 yrsSq ft1,690NU codePartial parcel (6)RecordedJun 19, 2025

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  • 2023Sep 8

    Deed recorded

    $500,000
    Per sq ft$296Sq ft1,690RecordedSep 26, 2023

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  • 71 years
  • 1953

    Property Built

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

36 years · 1989–2024
YearProperty taxChangeLandImprovementAssessment
2024$9,238+1.5%$146,300$86,300$232,600
2023$9,105+1.2%$129,200$86,300$215,500
2022$8,999-0.5%$129,200$86,300$215,500
2021$9,047+0.5%$129,200$86,300$215,500
2020$9,001+2.1%$129,200$86,300$215,500
2019$8,814+1.2%$129,200$86,300$215,500
2018$8,706+1.8%$129,200$86,300$215,500
2017$8,553+0.6%$129,200$86,300$215,500

46 Wilson Dr, Berkeley Heights, NJ 07922Residential1,668 sq ftAssessed $285,2000.65 mi away-1% sq ftView details575 Snyder Ave, Berkeley Heights, NJ 07922Residential1,672 sq ftAssessed $228,0000.45 mi away-1% sq ftView details70 Spring Ridge Dr, Berkeley Heights, NJ 07922Residential1,773 sq ftAssessed $307,2000.29 mi away+5% sq ftView details25 Brookside Lane, Berkeley Heights, NJ 07922Residential1,680 sq ftAssessed $244,9000.43 mi away-1% sq ftView details248 Berkeley Ave, Berkeley Heights, NJ 07922Residential1,832 sq ftAssessed $240,7000.84 mi away+8% sq ftView details

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  • 732 Mountain Ave, Westfield, NJ 07090Lot 1
  • 630 Plainfield Avenue, Berkeley Heights, NJ 07922Lot 2
  • 704 Mountain Ave, Berkeley Heights, NJ 07922Lot 3
  • 694 Mountain Ave, Berkeley Heights, NJ 07922Lot 4.01
  • 686 Mountain Ave, Berkeley Heights, NJ 07922Lot 4.02
  • 678 Mountain Ave, Berkeley Heights, NJ 07922Lot 5
  • 1 Treetop Court, Berkeley Heights, NJ 07922Lot 6.01
  • 3 Treetop Court, Berkeley Heights, NJ 07922Lot 6.02
  • 5 Treetop Court, Berkeley Heights, NJ 07922Lot 6.03
  • 4 Treetop Court, Berkeley Heights, NJ 07922Lot 6.04
  • 2 Treetop Court, Berkeley Heights, NJ 07922Lot 6.05
  • 638 Mountain Avenue, Berkeley Heights, NJ 07922Lot 9
All 61 lots on Block 3201