When was 12 John Street, Mount Olive, NJ last sold?

The most recent recorded sale was in 1991 for $138,000.

What is the assessed value of 12 John Street, Mount Olive, NJ?

The total municipal assessment is $316,100 (land plus improvements).

What is 12 John Street, Mount Olive, NJ worth?

Our model estimates a market value of $502,393, derived from comparable recorded sales nearby.

How many units does 12 John Street, Mount Olive, NJ have?

Records show 1 dwelling unit at 12 John Street, Mount Olive, NJ.

ElasticParcelNJ

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12 John Street

Mount Olive, NJ 07840·Morris County

1427·block 8602·lot 17

Estimated market value

$502,393

high confidence

range $484,465 – $561,195

Assessment-implied: $478,070; Director's Ratio 0.6612 (2025)
Comp-implied: $510,500; 30 comparable sales

Based on 30 comparable sales

Address	Sold	Price
138 Bartley-Flanders Rd	4/8/2026	$440,000

Last sale

$138,000

8/20/1991 · MOD-IV (Rutgers)

Property

Type

Residential 1-4 unit

Tax class

Residential 1-4 unit

Year built

1973

Building size

2,042 sq ft

Lot size

0.54 ac

Land description

100X200

Building description

—

Dwelling / commercial units

1 dw / 0 comm

Tax & Assessment

Net assessed value

$316,100

Land value

$151,800

Improvement value

$164,300

Last year's tax

$11,016

Last MOD-IV sale

$138,000

MOD-IV deed date

8/20/1991

Owner

KOPACKI DAVID M. SR. & TRACY F.

12 John St
Hackettstown, N.j. 07840

Sales history

8/20/1991$138,000
MOD-IV (Rutgers)Bk 3486 / Pg 86
11/22/1982$76,000
MOD-IV (Rutgers)Bk 2649 / Pg 103

Date	Price	Book / Page	Source
8/20/1991	$138,000	3486 / 86	MOD-IV (Rutgers)
11/22/1982	$76,000	2649 / 103	MOD-IV (Rutgers)

Deeds

No deeds on file. Click Fetch metadata to pull the title chain from the county clerk.

On John Street

Block 8602

Debug — raw data per source

Computed

{
  "isCondoMaster": false,
  "condoCluster": null,
  "siblingUnitCount": 0,
  "portfolioCount": 0,
  "portfolioKeys": {
    "fullKeys": [
      "12 JOHN ST HACKETTSTOWN N J 07840"
    ],
    "zipKeys": [
      "12 JOHN ST 07840"
    ]
  },
  "effective_unit_count": 1,
  "effective_unit_count_source": "MOD-IV"
}

MOD-IV

{
  "pams_pin": "1427_8602_17",
  "county_code": "14",
  "district_code": "27",
  "block": "8602",
  "lot": "17",
  "qualifier": "",
  "property_location": "12 JOHN ST",
  "property_class": "2",
  "bldg_class": "17",
  "bldg_desc": null,
  "land_desc": "100X200",
  "year_built": 1973,
  "living_sqft": 2042,
  "dwelling_units": 1,
  "comm_dwell": null,
  "land_value_cents": "15180000",
  "improvement_value_cents": "16430000",
  "net_value_cents": "31610000",
  "last_yr_tx_cents": "1101609",
  "deed_date": "1991-08-20",
  "deed_book": "3486",
  "deed_page": "86",
  "sale_price_cents": "13800000",
  "sales_code": null,
  "owner_mailing_street": "12 JOHN ST",
  "owner_mailing_city_state_zip": "HACKETTSTOWN, N.J.  07840",
  "mun_name": "MOUNT OLIVE TWP",
  "calc_acre": "0.541800",
  "add_lots1": null,
  "add_lots2": "B173    L15",
  "prop_use": null,
  "fac_name": null,
  "centroid_lon": -74.80859162806559,
  "centroid_lat": 40.853788095247076
}

SR1A

[
  {
    "id": "9c2c7cbc-328b-483e-a81b-1e2e73f67c3d",
    "property_id": "ef4bf13d-15d8-42a3-a5e6-132c0de4404f",
    "county_code": "14",
    "district_code": "27",
    "block": "8602",
    "lot": "17",
    "qualifier": "",
    "deed_book": "3486",
    "deed_page": "86",
    "deed_date": "1991-08-20",
    "date_recorded": "1991-08-20",
    "sale_price_cents": "13800000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
    "id": "a7bb3ba7-ee81-4409-b315-3086f113b8c5",
    "property_id": "ef4bf13d-15d8-42a3-a5e6-132c0de4404f",
    "county_code": "14",
    "district_code": "27",
    "block": "8602",
    "lot": "17",
    "qualifier": "",
    "deed_book": "2649",
    "deed_page": "103",
    "deed_date": "1982-11-22",
    "date_recorded": "1982-11-22",
    "sale_price_cents": "7600000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  }
]

API record·permalink

Frequently asked

When was 12 John Street, Mount Olive, NJ last sold?: The most recent recorded sale was in 1991 for $138,000.
What is the assessed value of 12 John Street, Mount Olive, NJ?: The total municipal assessment is $316,100 (land plus improvements).
What is 12 John Street, Mount Olive, NJ worth?: Our model estimates a market value of $502,393, derived from comparable recorded sales nearby.
How many units does 12 John Street, Mount Olive, NJ have?: Records show 1 dwelling unit at 12 John Street, Mount Olive, NJ.
What kind of property is 12 John Street, Mount Olive, NJ?: It is a Residential Property.

Loading parcel record…

12 John St

12 John Street, Mount Olive, NJ — owner, sales, deeds · ElasticParcel

12 John Street

Mount Olive, NJ 07840·Morris County

1427·block 8602·lot 17

Estimated market value

$502,393

high confidence

range $484,465 – $561,195

Assessment-implied: $478,070; Director's Ratio 0.6612 (2025)
Comp-implied: $510,500; 30 comparable sales

Based on 30 comparable sales

Address	Sold	Price
138 Bartley-Flanders Rd	4/8/2026	$440,000

Last sale

$138,000

8/20/1991 · MOD-IV (Rutgers)

Property

Type

Residential 1-4 unit

Tax class

Residential 1-4 unit

Year built

1973

Building size

2,042 sq ft

Lot size

0.54 ac

Land description

100X200

Building description

—

Dwelling / commercial units

1 dw / 0 comm

Tax & Assessment

Net assessed value

$316,100

Land value

$151,800

Improvement value

$164,300

Last year's tax

$11,016

Last MOD-IV sale

$138,000

MOD-IV deed date

8/20/1991

Owner

KOPACKI DAVID M. SR. & TRACY F.

12 John St
Hackettstown, N.j. 07840

Sales history

8/20/1991$138,000
MOD-IV (Rutgers)Bk 3486 / Pg 86
11/22/1982$76,000
MOD-IV (Rutgers)Bk 2649 / Pg 103

Date	Price	Book / Page	Source
8/20/1991	$138,000	3486 / 86	MOD-IV (Rutgers)
11/22/1982	$76,000	2649 / 103	MOD-IV (Rutgers)

Deeds

No deeds on file. Click Fetch metadata to pull the title chain from the county clerk.

On John Street

Block 8602

Debug — raw data per source

Computed

{
  "isCondoMaster": false,
  "condoCluster": null,
  "siblingUnitCount": 0,
  "portfolioCount": 0,
  "portfolioKeys": {
    "fullKeys": [
      "12 JOHN ST HACKETTSTOWN N J 07840"
    ],
    "zipKeys": [
      "12 JOHN ST 07840"
    ]
  },
  "effective_unit_count": 1,
  "effective_unit_count_source": "MOD-IV"
}

MOD-IV

{
  "pams_pin": "1427_8602_17",
  "county_code": "14",
  "district_code": "27",
  "block": "8602",
  "lot": "17",
  "qualifier": "",
  "property_location": "12 JOHN ST",
  "property_class": "2",
  "bldg_class": "17",
  "bldg_desc": null,
  "land_desc": "100X200",
  "year_built": 1973,
  "living_sqft": 2042,
  "dwelling_units": 1,
  "comm_dwell": null,
  "land_value_cents": "15180000",
  "improvement_value_cents": "16430000",
  "net_value_cents": "31610000",
  "last_yr_tx_cents": "1101609",
  "deed_date": "1991-08-20",
  "deed_book": "3486",
  "deed_page": "86",
  "sale_price_cents": "13800000",
  "sales_code": null,
  "owner_mailing_street": "12 JOHN ST",
  "owner_mailing_city_state_zip": "HACKETTSTOWN, N.J.  07840",
  "mun_name": "MOUNT OLIVE TWP",
  "calc_acre": "0.541800",
  "add_lots1": null,
  "add_lots2": "B173    L15",
  "prop_use": null,
  "fac_name": null,
  "centroid_lon": -74.80859162806559,
  "centroid_lat": 40.853788095247076
}

SR1A

[
  {
    "id": "9c2c7cbc-328b-483e-a81b-1e2e73f67c3d",
    "property_id": "ef4bf13d-15d8-42a3-a5e6-132c0de4404f",
    "county_code": "14",
    "district_code": "27",
    "block": "8602",
    "lot": "17",
    "qualifier": "",
    "deed_book": "3486",
    "deed_page": "86",
    "deed_date": "1991-08-20",
    "date_recorded": "1991-08-20",
    "sale_price_cents": "13800000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
    "id": "a7bb3ba7-ee81-4409-b315-3086f113b8c5",
    "property_id": "ef4bf13d-15d8-42a3-a5e6-132c0de4404f",
    "county_code": "14",
    "district_code": "27",
    "block": "8602",
    "lot": "17",
    "qualifier": "",
    "deed_book": "2649",
    "deed_page": "103",
    "deed_date": "1982-11-22",
    "date_recorded": "1982-11-22",
    "sale_price_cents": "7600000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  }
]

API record·permalink

Frequently asked

When was 12 John Street, Mount Olive, NJ last sold?: The most recent recorded sale was in 1991 for $138,000.
What is the assessed value of 12 John Street, Mount Olive, NJ?: The total municipal assessment is $316,100 (land plus improvements).
What is 12 John Street, Mount Olive, NJ worth?: Our model estimates a market value of $502,393, derived from comparable recorded sales nearby.
How many units does 12 John Street, Mount Olive, NJ have?: Records show 1 dwelling unit at 12 John Street, Mount Olive, NJ.
What kind of property is 12 John Street, Mount Olive, NJ?: It is a Residential Property.