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41 Washington St, Rocky Hill Boro, NJ — owner, sales, deeds · parceldata

41 Washington St

Rocky Hill Boro, NJ·Somerset County

1817·block 5·lot 11

$628,130estimated value

Last sale

—

9/19/2022 · SR1A 2023

5 other properties share this owner's mailing address.View portfolio →

Property

Type

Residential 1-4 unit

Tax class

Residential 1-4 unit

Year built

1910

Building size

1,866 sq ft

Lot size

0.36 ac

Land description

0.3558 ACRE

Building description

2SF 2G

Dwelling / commercial units

1 dw / 0 comm

Tax & Assessment

Net assessed value

$634,000

Land value

$167,400

Improvement value

$466,600

Last year's tax

$13,194

Last MOD-IV sale

MOD-IV deed date

9/20/2021

Owner mailing address

41 Airpark Rd
Princeton, Nj 08540

Estimated market value

$628,130

range $575,952 – $737,533

low confidence

Assessment-implied: $695,709; Director's Ratio 0.9113 (2025)
Comp-implied: $560,550; 3 comparable sales

Based on 3 comparable sales

Address	Sold	Price
142 Washington St	7/29/2025	$560,550
74 Crescent Ave	3/20/2025	$675,000
143 Washington St	5/1/2024	$465,000

Sales history

Bordering

200-ft notice list →

37 Washington St
Lot 10·$614,400
45 Washington St
Lot 12·$660,500

Block 5All of Block 5 →

Debug — raw data per source

Computed

{
  "isCondoMaster": false,
  "condoCluster": null,
  "siblingUnitCount": 0,
  "portfolioCount": 5,
  "portfolioKeys": {
    "fullKeys": [
      "41 AIRPARK RD PRINCETON NJ 08540"
    ],
    "zipKeys": [
      "41 AIRPARK RD 08540"
    ]
  },
  "effective_unit_count": 1,
  "effective_unit_count_source": "MOD-IV"
}

MOD-IV

{
  "pams_pin": "1817_5_11",
  "county_code": "18",
  "district_code": "17",
  "block": "5",
  "lot": "11",
  "qualifier": "",
  "property_location": "41 Washington St",
  "property_class": "2",
  "bldg_class": "20",
  "bldg_desc": "2SF 2G",
  "land_desc": "0.3558 ACRE",
  "year_built": 1910,
  "living_sqft": 1866,
  "dwelling_units": 1,
  "comm_dwell": null,
  "land_value_cents": "16740000",
  "improvement_value_cents": "46660000",
  "net_value_cents": "63400000",
  "last_yr_tx_cents": "1319354",
  "deed_date": "2021-09-20",
  "deed_book": "07470",
  "deed_page": "01680",
  "sale_price_cents": "0",
  "sales_code": "A",
  "owner_mailing_street": "41 Airpark Rd",
  "owner_mailing_city_state_zip": "Princeton, Nj 08540",
  "mun_name": "ROCKY HILL BORO",
  "calc_acre": "0.355800",
  "add_lots1": null,
  "add_lots2": null,
  "prop_use": null,
  "fac_name": null,
  "centroid_lon": -74.64227365890535,
  "centroid_lat": 40.40106201753406
}

SR1A

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    "block": "5",
    "lot": "11",
    "qualifier": "",
    "deed_book": null,
    "deed_page": null,
    "deed_date": "2021-09-20",
    "date_recorded": "2022-09-19",
    "sale_price_cents": null,
    "sr1a_year": 2023,
    "source": "sr1a"
  },
  {
    "id": "c2d9b283-7540-4b4f-9f96-f73b3aa59c1e",
    "property_id": "2b9a402a-8ba8-4a34-a880-dec34da2bdf0",
    "county_code": "18",
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    "block": "5",
    "lot": "11",
    "qualifier": "",
    "deed_book": "7470",
    "deed_page": "1680",
    "deed_date": "2021-09-20",
    "date_recorded": "2021-09-20",
    "sale_price_cents": "0",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
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    "date_recorded": "2021-09-20",
    "sale_price_cents": "0",
    "sr1a_year": null,
    "source": "taxdatahub"
  },
  {
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  },
  {
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    "qualifier": "",
    "deed_book": "6437",
    "deed_page": "1887",
    "deed_date": "2011-07-06",
    "date_recorded": "2011-07-06",
    "sale_price_cents": "47000000",
    "sr1a_year": null,
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  },
  {
    "id": "234cdf3b-0932-4c11-8a19-1ac5d39bdc81",
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    "qualifier": "",
    "deed_book": "2235",
    "deed_page": "34",
    "deed_date": "1999-05-13",
    "date_recorded": "1999-05-13",
    "sale_price_cents": "100",
    "sr1a_year": null,
    "source": "modiv_rutgers"
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    "id": "9200b989-47ba-4a57-94ad-cae5b5849d9b",
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    "deed_book": null,
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    "sale_price_cents": "100",
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  },
  {
    "id": "59af218d-4b98-44ed-9785-614fff08fd70",
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    "deed_book": "1887",
    "deed_page": "294",
    "deed_date": "1992-12-09",
    "date_recorded": "1992-12-09",
    "sale_price_cents": "100",
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    "source": "modiv_rutgers"
  },
  {
    "id": "ab264ea6-a73c-43e9-8da4-ba7457a66899",
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    "deed_book": null,
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  },
  {
    "id": "e6825b9b-e331-4978-a391-0ef4fd21e055",
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    "deed_book": "1513",
    "deed_page": "189",
    "deed_date": "1984-07-31",
    "date_recorded": "1984-07-31",
    "sale_price_cents": "13365000",
    "sr1a_year": null,
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  },
  {
    "id": "b8ce475f-610b-4579-aa67-3ad64e4633ef",
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]

API record·permalink

Date	Price	Book / Page	Source
9/19/2022	—	—	SR1A 2023
9/20/2021	$0	7470 / 1680	MOD-IV (Rutgers)
9/20/2021	$0	07470 / 01680	TaxDataHub
7/6/2011	$470,000	—	TaxDataHub
7/6/2011	$470,000	6437 / 1887	MOD-IV (Rutgers)
5/13/1999	$1	2235 / 34	MOD-IV (Rutgers)
5/13/1999	$1	—	TaxDataHub
12/9/1992	$1	1887 / 294	MOD-IV (Rutgers)
12/9/1992	$1	—	TaxDataHub
7/31/1984	$133,650	1513 / 189	MOD-IV (Rutgers)
7/31/1984	$133,650	—	TaxDataHub

Property

Tax & Assessment

Estimated market value

Sales history

Bordering

Deeds