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31 Knollwood Ave, Madison Boro, NJ — owner, sales, deeds · parceldata

31 Knollwood Ave

Madison Boro, NJ 07940·Morris County

1417·block 908·lot 8

$815,276estimated value

Last sale

$100

9/20/2011 · taxrecords_nj

Property

Type

Residential 1-4 unit

Tax class

Residential 1-4 unit

Year built

1941

Building size

1,471 sq ft

Lot size

0.14 ac

Land description

0.1435 AC

Building description

2SF

Dwelling / commercial units

1 dw / 0 comm

Tax & Assessment

Net assessed value

$530,200

Land value

$321,600

Improvement value

$208,600

Last year's tax

$11,293

Last MOD-IV sale

$100

MOD-IV deed date

9/17/2011

Owner mailing address

31 KNOLLWOOD AVE
MADISON, NJ 07940

Estimated market value

$815,276

range $705,117 – $989,896

high confidence

Assessment-implied: $880,438; Director's Ratio 0.6022 (2025)
Comp-implied: $793,555; 30 comparable sales

Based on 30 comparable sales

Address	Sold	Price
3 Durwood Pl	2/20/2026	$740,000
53 Highland Ave	2/6/2026	$875,000
47 Niles Ave	2/2/2026	$662,600
7 Lee Ave	1/5/2026	$1,160,000

Bordering

200-ft notice list →

34 Valley Rd
Lot 20·$713,000
32 Valley Rd
Lot 21·$587,100
29 Knollwood Ave
Lot 7·$522,900
33 Knollwood Ave
Lot 9·$501,200

Block 908All of Block 908 →

Debug — raw data per source

Computed

{
  "isCondoMaster": false,
  "condoCluster": null,
  "siblingUnitCount": 0,
  "portfolioCount": 0,
  "portfolioKeys": {
    "fullKeys": [
      "31 KNOLLWOOD AVE MADISON NJ 07940"
    ],
    "zipKeys": [
      "31 KNOLLWOOD AVE 07940"
    ]
  },
  "effective_unit_count": 1,
  "effective_unit_count_source": "MOD-IV"
}

MOD-IV

{
  "pams_pin": "1417_908_8",
  "county_code": "14",
  "district_code": "17",
  "block": "908",
  "lot": "8",
  "qualifier": "",
  "property_location": "31 KNOLLWOOD AVE",
  "property_class": "2",
  "bldg_class": "18",
  "bldg_desc": "2SF",
  "land_desc": "0.1435 AC",
  "year_built": 1941,
  "living_sqft": 1471,
  "dwelling_units": 1,
  "comm_dwell": null,
  "land_value_cents": "32160000",
  "improvement_value_cents": "20860000",
  "net_value_cents": "53020000",
  "last_yr_tx_cents": "1129326",
  "deed_date": "2011-09-17",
  "deed_book": "21865",
  "deed_page": "1380",
  "sale_price_cents": "10000",
  "sales_code": null,
  "owner_mailing_street": "31 KNOLLWOOD AVE",
  "owner_mailing_city_state_zip": "MADISON, NJ  07940",
  "mun_name": "MADISON BORO",
  "calc_acre": "0.143500",
  "add_lots1": null,
  "add_lots2": null,
  "prop_use": null,
  "fac_name": null,
  "centroid_lon": -74.40361309625933,
  "centroid_lat": 40.760338653256774
}

SR1A

[
  {
    "id": "d15b67b3-e88b-4835-aa0c-25965def7e07",
    "property_id": "efb063da-8ae4-41c8-aff3-f11b3d1f13f9",
    "county_code": "14",
    "district_code": "17",
    "block": "908",
    "lot": "8",
    "qualifier": "",
    "deed_book": "21865",
    "deed_page": "1380",
    "deed_date": "2011-09-17",
    "date_recorded": "2011-09-20",
    "sale_price_cents": "10000",
    "sr1a_year": null,
    "source": "taxrecords_nj"
  },
  {
    "id": "900027e9-d814-425a-a201-62843181e831",
    "property_id": "efb063da-8ae4-41c8-aff3-f11b3d1f13f9",
    "county_code": "14",
    "district_code": "17",
    "block": "908",
    "lot": "8",
    "qualifier": "",
    "deed_book": "21865",
    "deed_page": "1380",
    "deed_date": "2011-09-17",
    "date_recorded": "2011-09-17",
    "sale_price_cents": "10000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
    "id": "3007227b-2cfe-4352-8046-2cdcfb93c50b",
    "property_id": "efb063da-8ae4-41c8-aff3-f11b3d1f13f9",
    "county_code": "14",
    "district_code": "17",
    "block": "908",
    "lot": "8",
    "qualifier": "",
    "deed_book": "21561",
    "deed_page": "1879",
    "deed_date": "2010-06-07",
    "date_recorded": "2010-06-17",
    "sale_price_cents": "47367200",
    "sr1a_year": null,
    "source": "taxrecords_nj"
  },
  {
    "id": "62c1a179-c122-4e70-8c11-25406fb20e62",
    "property_id": "efb063da-8ae4-41c8-aff3-f11b3d1f13f9",
    "county_code": "14",
    "district_code": "17",
    "block": "908",
    "lot": "8",
    "qualifier": "",
    "deed_book": "21561",
    "deed_page": "1879",
    "deed_date": "2010-06-07",
    "date_recorded": "2010-06-07",
    "sale_price_cents": "47367200",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
    "id": "54d3dbd3-7896-41e2-828f-623804d6e9b9",
    "property_id": "efb063da-8ae4-41c8-aff3-f11b3d1f13f9",
    "county_code": "14",
    "district_code": "17",
    "block": "908",
    "lot": "8",
    "qualifier": "",
    "deed_book": "20759",
    "deed_page": "1100",
    "deed_date": "2007-02-14",
    "date_recorded": "2007-03-05",
    "sale_price_cents": "58000000",
    "sr1a_year": null,
    "source": "taxrecords_nj"
  },
  {
    "id": "b88905f3-a6a4-4dd7-8736-0f7ccb0fd159",
    "property_id": "efb063da-8ae4-41c8-aff3-f11b3d1f13f9",
    "county_code": "14",
    "district_code": "17",
    "block": "908",
    "lot": "8",
    "qualifier": "",
    "deed_book": "20759",
    "deed_page": "1100",
    "deed_date": "2007-02-14",
    "date_recorded": "2007-02-14",
    "sale_price_cents": "58000000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  }
]

API record·permalink

Sales history

9/20/2011$100
taxrecords_njBk 21865 / Pg 1380
9/17/2011$100
MOD-IV (Rutgers)Bk 21865 / Pg 1380
6/17/2010$473,672
taxrecords_njBk 21561 / Pg 1879
6/7/2010$473,672
MOD-IV (Rutgers)Bk 21561 / Pg 1879
3/5/2007$580,000
taxrecords_njBk 20759 / Pg 1100
2/14/2007$580,000
MOD-IV (Rutgers)Bk 20759 / Pg 1100

Date	Price	Book / Page	Source
9/20/2011	$100	21865 / 1380	taxrecords_nj
9/17/2011	$100	21865 / 1380	MOD-IV (Rutgers)
6/17/2010	$473,672	21561 / 1879	taxrecords_nj
6/7/2010	$473,672	21561 / 1879	MOD-IV (Rutgers)
3/5/2007	$580,000	20759 / 1100	taxrecords_nj
2/14/2007	$580,000	20759 / 1100	MOD-IV (Rutgers)

Property

Tax & Assessment

Estimated market value

Bordering

Sales history

Deeds