When was 502 Willow Grove St, Hackettstown, NJ last sold?

The most recent recorded sale was in 2021 for $1.

What is the assessed value of 502 Willow Grove St, Hackettstown, NJ?

The total municipal assessment is $225,200 (land plus improvements).

What is 502 Willow Grove St, Hackettstown, NJ worth?

Our model estimates a market value of $363,790, derived from comparable recorded sales nearby.

How many units does 502 Willow Grove St, Hackettstown, NJ have?

Records show 1 dwelling unit at 502 Willow Grove St, Hackettstown, NJ.

What kind of property is 502 Willow Grove St, Hackettstown, NJ?

MOD-IV classifies it as Residential 1-4 unit (class 2). Year built: 1957.

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502 Willow Grove St, Hackettstown, NJ — owner, sales, deeds · parceldata

502 Willow Grove St

Hackettstown, NJ 07840·Warren County

2108·block 119·lot 54

$363,790estimated value

Last sale

12/22/2021 · SR1A 2022

Property

Type

Residential 1-4 unit

Tax class

Residential 1-4 unit

Year built

1957

Building size

1,140 sq ft

Lot size

0.57 ac

Land description

100X248

Building description

1.5SF1G

Dwelling / commercial units

1 dw / 0 comm

Tax & Assessment

Net assessed value

$225,200

Land value

$121,100

Improvement value

$104,100

Last year's tax

$7,200

Last MOD-IV sale

MOD-IV deed date

12/20/2021

Owner mailing address

502 WILLOW GROVE ST
HACKETTSTOWN NJ 07840

Estimated market value

$363,790

range $335,662 – $436,637

moderate confidence

Assessment-implied: $302,770; Director's Ratio 0.7438 (2025)
Comp-implied: $384,130; 20 comparable sales

Estimated value, last 11 years

2016: $177,005 → 2026: $363,790

Based on 20 comparable sales

Address	Sold	Price
704 E Valley View Ave	2/13/2026	$571,500

Bordering

200-ft notice list →

504 Willow Grove St
Lot 53·$234,600
500 Willow Grove St
Lot 55·$700,000
111 Russell CT
Lot 59.03·$255,700

Block 119All of Block 119 →

Debug — raw data per source

Computed

{
  "isCondoMaster": false,
  "condoCluster": null,
  "siblingUnitCount": 0,
  "portfolioCount": 0,
  "portfolioKeys": {
    "fullKeys": [
      "502 WILLOW GROVE ST HACKETTSTOWN NJ 07840"
    ],
    "zipKeys": [
      "502 WILLOW GROVE ST 07840"
    ]
  },
  "effective_unit_count": 1,
  "effective_unit_count_source": "MOD-IV"
}

MOD-IV

{
  "pams_pin": "2108_119_54",
  "county_code": "21",
  "district_code": "08",
  "block": "119",
  "lot": "54",
  "qualifier": "",
  "property_location": "502 WILLOW GROVE ST",
  "property_class": "2",
  "bldg_class": "16",
  "bldg_desc": "1.5SF1G",
  "land_desc": "100X248",
  "year_built": 1957,
  "living_sqft": 1140,
  "dwelling_units": 1,
  "comm_dwell": null,
  "land_value_cents": "12110000",
  "improvement_value_cents": "10410000",
  "net_value_cents": "22520000",
  "last_yr_tx_cents": "719959",
  "deed_date": "2021-12-20",
  "deed_book": "3225",
  "deed_page": "266",
  "sale_price_cents": "100",
  "sales_code": null,
  "owner_mailing_street": "502 WILLOW GROVE ST",
  "owner_mailing_city_state_zip": "HACKETTSTOWN NJ  07840",
  "mun_name": "HACKETTSTOWN TOWN",
  "calc_acre": "0.569300",
  "add_lots1": null,
  "add_lots2": null,
  "prop_use": null,
  "fac_name": null,
  "centroid_lon": -74.81681576503816,
  "centroid_lat": 40.85814061054346
}

SR1A

[
  {
    "id": "bee2edd3-1722-472d-a18a-a59f50b15dac",
    "property_id": null,
    "county_code": "21",
    "district_code": "08",
    "block": "119",
    "lot": "54",
    "qualifier": "",
    "deed_book": null,
    "deed_page": null,
    "deed_date": "2021-12-20",
    "date_recorded": "2021-12-22",
    "sale_price_cents": "100",
    "sr1a_year": 2022,
    "source": "sr1a"
  },
  {
    "id": "2f77c213-e8e5-401e-8f4a-613c75ab632b",
    "property_id": "96b9c1cc-9230-4ac9-888d-2b5d225ab787",
    "county_code": "21",
    "district_code": "08",
    "block": "119",
    "lot": "54",
    "qualifier": "",
    "deed_book": "3225",
    "deed_page": "266",
    "deed_date": "2021-12-20",
    "date_recorded": "2021-12-22",
    "sale_price_cents": "100",
    "sr1a_year": null,
    "source": "taxrecords_nj"
  },
  {
    "id": "d4aa27e0-69fd-489d-af26-cf80740759da",
    "property_id": "96b9c1cc-9230-4ac9-888d-2b5d225ab787",
    "county_code": "21",
    "district_code": "08",
    "block": "119",
    "lot": "54",
    "qualifier": "",
    "deed_book": "3225",
    "deed_page": "266",
    "deed_date": "2021-12-20",
    "date_recorded": "2021-12-20",
    "sale_price_cents": "100",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  }
]

API record·permalink

Frequently asked questions

When was 502 Willow Grove St, Hackettstown, NJ last sold?: The most recent recorded sale was in 2021 for $1.
What is the assessed value of 502 Willow Grove St, Hackettstown, NJ?: The total municipal assessment is $225,200 (land plus improvements).
What is 502 Willow Grove St, Hackettstown, NJ worth?: Our model estimates a market value of $363,790, derived from comparable recorded sales nearby.
How many units does 502 Willow Grove St, Hackettstown, NJ have?: Records show 1 dwelling unit at 502 Willow Grove St, Hackettstown, NJ.
What kind of property is 502 Willow Grove St, Hackettstown, NJ?: MOD-IV classifies it as Residential 1-4 unit (class 2). Year built: 1957.

Sales history

12/22/2021$1
SR1A 2022
12/22/2021$1
taxrecords_njBk 3225 / Pg 266
12/20/2021$1
MOD-IV (Rutgers)Bk 3225 / Pg 266

Date	Price	Book / Page	Source
12/22/2021	$1	—	SR1A 2022
12/22/2021	$1	3225 / 266	taxrecords_nj
12/20/2021	$1	3225 / 266	MOD-IV (Rutgers)