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434 Islip Ave, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 434 Islip Ave, Islip, NY 11751 · Last verified August 2026

Property Summary

Property TypeSingle Family Home
Details800 sqft · built 1954
Lot Size0.17 acres (7,405 sqft)
Owner2 Individual Names on File
Last Sale$277,000 (Nov 2020)
Tax Bill$8,851 (2024)
Deeds & MortgagesNov 2020 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN472889 295.-1-37

Property Details

APN / Parcel Number

Primary APN472889 295.-1-37
Alternative APNs
  • 0500-295.00-01.00-037.000
  • 288929500000010370000000
  • 472800602090
  • 568100

Interior

Building Area800 sqft Living Area
1st Floor Area800 sqft

Exterior

Year BuiltBuilt 1954
Effective Year BuiltEffective 1954
Lot Area7,405 sqft (0.17 acres)
Lot Dimensions100 ft deep x 75 ft wide

Location & Zoning

Account Number568100
Street Address434 ISLIP AVE
CityISLIP
StateNY
Zip11751-1815
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionX2219267Y190672 T045H00000000
Legal Block5000
Legal Lot Number100
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group1
Census Block1002
Census Tract146205

Owner

Source: Suffolk County and Islip Town records · APN 472889 295.-1-37

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 Record2 Individual Names on File
Mailing Address434 ISLIP AVE, ISLIP, NY 11751-1815
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleNov 17, 2020 · Amount on Record
Deed SaleNov 17, 2020 · Amount on Record
Deed Book / Page13078 / 490
Record UpdatedSep 20, 2026

November 2020: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateNov 17, 2020
Property Address434 ISLIP AVE, ISLIP, NY 11751-1815
Document Number0130780490
Book / Page13078 / 490
Instrument DateOct 21, 2020
Transaction TypeTransfer
Record UpdatedAug 20, 2021

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Lis Pendens
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address16 CORNELL ST, ISLIP, NY 11751-2102

Mortgage

Document NumberDL036102
DateNov 17, 2020
InstrumentDL036102
Lender
NameFEDERAL SAVINGS BANK
TypeBank
Agreement
TypeFHA Mortgage
AmountAmount Recorded

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$26,250 (-) Land $6,700 Building $19,550$369,718 (-) Land $94,366 Building $275,352
2024$8,851.00$369,718 (+2.54%) Land $94,366 Building $275,352
2023$26,250 Land $6,700 Building $19,550$360,577 Land $92,033 Building $268,544

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 361031462051, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Nearby Flood Policies1 in force
Nearby Flood Claims1 (2014)
Claims Outside the SFHA1 of 1
Most Recent ClaimAug 2014, rainfall accumulation

Wildfire

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

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 441 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
Optimum CommunicationsFiber8,000 / 8,000
VerizonFiber2,300 / 2,300
Optimum CommunicationsCable940 / 35

Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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