When was 21 Island Trl, Sparta Twp, NJ last sold?

The most recent recorded sale was in 2024 for $2,900,000.

What is the assessed value of 21 Island Trl, Sparta Twp, NJ?

The total municipal assessment is $1,437,600 (land plus improvements).

What is 21 Island Trl, Sparta Twp, NJ worth?

Our model estimates a market value of $2,755,862, derived from comparable recorded sales nearby.

How many units does 21 Island Trl, Sparta Twp, NJ have?

Records show 1 dwelling unit at 21 Island Trl, Sparta Twp, NJ.

What kind of property is 21 Island Trl, Sparta Twp, NJ?

MOD-IV classifies it as Residential 1-4 unit (class 2). Year built: 1932.

parceldata.nj

Loading…

21 Island Trl, Sparta Twp, NJ — owner, sales, deeds · parceldata

21 Island Trl

Sparta Twp, NJ 07871·Sussex County

1918·block 4029·lot 17

$2,755,862estimated value

Last sale

$2,900,000

9/6/2024 · SR1A 2025

Property

Type

Residential 1-4 unit

Tax class

Residential 1-4 unit

Year built

1932

Building size

3,975 sq ft

Lot size

0.91 ac

Land description

150X265 AV LMCC

Building description

TUDOR

Dwelling / commercial units

1 dw / 0 comm

Tax & Assessment

Net assessed value

$1,437,600

Land value

$977,500

Improvement value

$460,100

Last year's tax

$51,595

Last MOD-IV sale

$2,900,000

MOD-IV deed date

8/1/2024

Owner mailing address

21 ISLAND TRL
SPARTA, NJ 07871

Estimated market value

$2,755,862

range $2,427,387 – $2,964,181

high confidence

Assessment-implied: $2,403,210; Director's Ratio 0.5982 (2025)
Comp-implied: $2,272,240; 9 comparable sales

Estimated value, last 11 years

2016: $1,837,241 → 2026: $2,755,862

dots are actual sale prices for this property

Based on 9 comparable sales

On Island Trl

All 34 on Island Trl →

9 Island Trl
Lot 13·$1,202,900
11 Island Trl
Lot 14·$1,106,700
12 Island Trl
Lot 8·$872,900
14 Island Trl
Lot 7·$1,279,500
15 Island Trl
Lot 15·$1,864,300
16 Island Trl
Lot 6·$1,263,100

Bordering

200-ft notice list →

19 Island Trl
Lot 16·$1,592,700
23 Island Trl
Lot 18·$1,696,700
Lake Mohawk Bed
Lot 186·$431,900

Block 4029All of Block 4029 →

Debug — raw data per source

Computed

{
  "isCondoMaster": false,
  "condoCluster": null,
  "siblingUnitCount": 0,
  "portfolioCount": 0,
  "portfolioKeys": {
    "fullKeys": [
      "21 ISLAND TRL SPARTA NJ 07871"
    ],
    "zipKeys": [
      "21 ISLAND TRL 07871"
    ]
  },
  "effective_unit_count": 1,
  "effective_unit_count_source": "MOD-IV"
}

MOD-IV

{
  "pams_pin": "1918_4029_17",
  "county_code": "19",
  "district_code": "18",
  "block": "4029",
  "lot": "17",
  "qualifier": "",
  "property_location": "21 ISLAND TRL",
  "property_class": "2",
  "bldg_class": "20",
  "bldg_desc": "TUDOR",
  "land_desc": "150X265 AV      LMCC",
  "year_built": 1932,
  "living_sqft": 3975,
  "dwelling_units": 1,
  "comm_dwell": null,
  "land_value_cents": "97750000",
  "improvement_value_cents": "46010000",
  "net_value_cents": "143760000",
  "last_yr_tx_cents": "5159546",
  "deed_date": "2024-08-01",
  "deed_book": "10333",
  "deed_page": "124",
  "sale_price_cents": "290000000",
  "sales_code": null,
  "owner_mailing_street": "21 ISLAND TRL",
  "owner_mailing_city_state_zip": "SPARTA, NJ  07871",
  "mun_name": "SPARTA TWP",
  "calc_acre": "0.910000",
  "add_lots1": null,
  "add_lots2": null,
  "prop_use": null,
  "fac_name": null,
  "centroid_lon": -74.65337800611937,
  "centroid_lat": 41.026144550938476
}

SR1A

[
  {
    "id": "be034616-cfdf-47f1-8842-84d0ad611d47",
    "property_id": null,
    "county_code": "19",
    "district_code": "18",
    "block": "4029",
    "lot": "17",
    "qualifier": "",
    "deed_book": null,
    "deed_page": null,
    "deed_date": "2024-08-01",
    "date_recorded": "2024-09-06",
    "sale_price_cents": "290000000",
    "sr1a_year": 2025,
    "source": "sr1a"
  },
  {
    "id": "8f118326-b57b-48eb-bc05-0ca55bdfeb49",
    "property_id": "82f13610-0f4a-4962-b824-46a54faf0e82",
    "county_code": "19",
    "district_code": "18",
    "block": "4029",
    "lot": "17",
    "qualifier": "",
    "deed_book": "10333",
    "deed_page": "124",
    "deed_date": "2024-08-01",
    "date_recorded": "2024-09-06",
    "sale_price_cents": "290000000",
    "sr1a_year": null,
    "source": "taxrecords_nj"
  },
  {
    "id": "e952c5dd-8498-49c5-b7a1-d9d5f3824015",
    "property_id": "82f13610-0f4a-4962-b824-46a54faf0e82",
    "county_code": "19",
    "district_code": "18",
    "block": "4029",
    "lot": "17",
    "qualifier": "",
    "deed_book": "10333",
    "deed_page": "124",
    "deed_date": "2024-08-01",
    "date_recorded": "2024-08-01",
    "sale_price_cents": "290000000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
    "id": "4c615120-2a88-48de-b2b0-8aa81c0d2014",
    "property_id": "82f13610-0f4a-4962-b824-46a54faf0e82",
    "county_code": "19",
    "district_code": "18",
    "block": "4029",
    "lot": "17",
    "qualifier": "",
    "deed_book": "3490",
    "deed_page": "113",
    "deed_date": "2018-08-15",
    "date_recorded": "2018-09-06",
    "sale_price_cents": "132500000",
    "sr1a_year": null,
    "source": "taxrecords_nj"
  },
  {
    "id": "5e1f3aed-78da-46c6-949d-568b54194ae3",
    "property_id": "82f13610-0f4a-4962-b824-46a54faf0e82",
    "county_code": "19",
    "district_code": "18",
    "block": "4029",
    "lot": "17",
    "qualifier": "",
    "deed_book": "3490",
    "deed_page": "113",
    "deed_date": "2018-08-15",
    "date_recorded": "2018-08-15",
    "sale_price_cents": "132500000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  },
  {
    "id": "6743355b-2ca9-4bdd-9b61-06be2db88a32",
    "property_id": "82f13610-0f4a-4962-b824-46a54faf0e82",
    "county_code": "19",
    "district_code": "18",
    "block": "4029",
    "lot": "17",
    "qualifier": "",
    "deed_book": "3246",
    "deed_page": "517",
    "deed_date": "2010-03-22",
    "date_recorded": "2010-03-22",
    "sale_price_cents": "192500000",
    "sr1a_year": null,
    "source": "modiv_rutgers"
  }
]

API record·permalink

Frequently asked questions

When was 21 Island Trl, Sparta Twp, NJ last sold?: The most recent recorded sale was in 2024 for $2,900,000.
What is the assessed value of 21 Island Trl, Sparta Twp, NJ?: The total municipal assessment is $1,437,600 (land plus improvements).
What is 21 Island Trl, Sparta Twp, NJ worth?: Our model estimates a market value of $2,755,862, derived from comparable recorded sales nearby.
How many units does 21 Island Trl, Sparta Twp, NJ have?: Records show 1 dwelling unit at 21 Island Trl, Sparta Twp, NJ.
What kind of property is 21 Island Trl, Sparta Twp, NJ?: MOD-IV classifies it as Residential 1-4 unit (class 2). Year built: 1932.

Address	Sold	Price
33 Rainbow Trl	10/17/2025	$1,750,000
29 Windy Bush Ln	9/29/2025	$550,000
36 Island Trl	8/6/2025	$1,600,000
269 West Shore Trl	6/26/2025	$1,050,000
2 Oak Pkwy	5/21/2025	$1,300,000
41 Island Trl	10/18/2024	$3,600,000
363 Springbrook TR	6/6/2024	$550,000
36 Island Trl	5/22/2024	$964,990
74 Alpine Trl	6/12/2023	$850,000

Sales history

9/6/2024$2,900,000
SR1A 2025
9/6/2024$2,900,000
taxrecords_njBk 10333 / Pg 124
8/1/2024$2,900,000
MOD-IV (Rutgers)Bk 10333 / Pg 124
9/6/2018$1,325,000
taxrecords_njBk 3490 / Pg 113
8/15/2018$1,325,000
MOD-IV (Rutgers)Bk 3490 / Pg 113
3/22/2010$1,925,000
MOD-IV (Rutgers)Bk 3246 / Pg 517

Date	Price	Book / Page	Source
9/6/2024	$2,900,000	—	SR1A 2025
9/6/2024	$2,900,000	10333 / 124	taxrecords_nj
8/1/2024	$2,900,000	10333 / 124	MOD-IV (Rutgers)
9/6/2018	$1,325,000	3490 / 113	taxrecords_nj
8/15/2018	$1,325,000	3490 / 113	MOD-IV (Rutgers)
3/22/2010	$1,925,000	3246 / 517	MOD-IV (Rutgers)