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19 William Ave, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 19 William Ave, Islip, NY 11751 · Last verified August 2026

Property Highlights

Property TypeResidential > Single Family > Home
Year BuiltBuilt 1991
Square Footage2,160 sqft Living Area
Lot Size7,405 sqft (0.17 acres)
OccupancyOwner Occupied
Last Sale$363,500 (2018)
Tax Bill$12,862.00 (2024)

Property Details

APN / Parcel Number

Primary APN472889 320.-1-60.2
Alternative APNs
  • 0500-320.00-01.00-060.002
  • 288932000000010600020000
  • 472800654920
  • 566931

Interior

Building Area2,160 sqft Living Area
1st Floor1,632 sqft 1st Floor
Basement Area528 sqft Basement

Exterior

Year BuiltBuilt 1991
Effective Year BuiltEffective 1991
Lot Area7,405 sqft (0.17 acres)
Lot Width70 ft Width

Location & Zoning

Account Number566931
Street Address19 WILLIAM AVE
CityISLIP
StateNY
Zip11751-2722
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionT044H00000000
Legal SubdivisionCOLUMBUS PARK
Legal Block0001
Legal Lot Number100
JurisdictionSUFFOLK NY
Minor Civil DivisionISLIP
Census Blockgroup1
Census Block1016
Census Tract147401

Owner

Source: Suffolk County and Islip Town records · APN 472889 320.-1-60.2

Assessment roll updated August 11, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on File
Mailing Address19 WILLIAM AVE, ISLIP, NY 11751-2722
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Dec 12, 2023Deed of Trust, Mortgage · Line of Credit
MANUFACTURERS & TRADERS TRUST CO
May 16, 2022Deed, Transfer · Stand Alone Refinance
INTERCONTINENTAL CAPITAL GROUP INC
Nov 06, 2020Deed of Trust, Mortgage · Stand Alone Refinance
JET DIRECT FUNDING
Sep 18, 2018Deed, Transfer

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleSep 18, 2018 · Amount on Record
Deed SaleSep 18, 2018 · Amount on Record
Prior SaleOct 16, 2000 · Amount on Record
Deed Book / Page12978 / 958
Prior Transfer DateJan 09, 2014
Prior Transfer Doc0127620601
Record RefreshedSep 20, 2026

December 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address19 WILLIAM AVE, ISLIP, NY 11751-2722
Transaction TypeMortgage
Record UpdatedMar 26, 2024

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0235540555
DateDec 12, 2023
Book Page23554/555
Lender
NameMANUFACTURERS & TRADERS TRUST CO
TypeBank
Agreement
TypeLine of Credit
AmountAmount Recorded
Term349 Months
DueJan 01, 2053
Interest
Rate TypeAdjustable Rate

May 2022: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateMay 16, 2022
Property Address19 WILLIAM AVE, ISLIP, NY 11751-2722
Document Number0131560231
Book / Page13156 / 231
Instrument DateApr 06, 2022
Transaction TypeTransfer
Record UpdatedAug 23, 2022

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded Values by County
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address135 HOLLINS LN, EAST ISLIP, NY 11730-3006
InvestorPossibly a Property Investor

Mortgage

Document Number0234170817
DateMay 16, 2022
Book Page23417/817
Lender
NameINTERCONTINENTAL CAPITAL GROUP INC
Agreement
TypeStand Alone Refinance
AmountAmount Recorded
Term349 Months
DueJun 01, 2051

November 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address19 WILLIAM AVE, ISLIP, NY 11751-2722
Transaction TypeMortgage
Record UpdatedFeb 05, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0231920785
DateNov 06, 2020
Book Page23192/785
InstrumentDL034227
Lender
NameJET DIRECT FUNDING
Agreement
TypeStand Alone Refinance
AmountAmount Recorded
Term361 Months
DueDec 01, 2050

September 2018: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateSep 18, 2018
Property Address19 WILLIAM AVE, ISLIP, NY 11751-2722
Document Number0129780958
Book / Page12978 / 958
Instrument DateAug 01, 2018
Transaction TypeTransfer
Record UpdatedAug 20, 2021

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name

Tax Assessment & Valuation

Source: Suffolk County and Islip Town records · Assessment roll updated August 11, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionIslip Town
Unified School DistrictIslip Union Free School District (KG - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

YearTax BillAssessed ValueAssessed Market Value
2025$39,000 (-) Land $6,600 Building $32,400$549,296 (-) Land $92,958 Building $456,338
2024$12,862.00$549,296 (+2.54%) Land $92,958 Building $456,338
2023$39,000 Land $6,600 Building $32,400$535,714 Land $90,659 Building $445,055

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

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