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525 Islip Ave, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 525 Islip Ave, Islip, NY 11751

Property Summary

Property TypeSingle Family Home
Details1,148 sqft · built 1958
Lot Size0.21 acres (9,148 sqft)
Owner2 Company Names on File
Deeds & MortgagesJul 2022 Sale
Jan 2019 Mortgage
+ 1 more
Flood ZoneZone X (minimal risk)
APN472889 272.-1-33

Property Details

APN / Parcel Number

Primary APN472889 272.-1-33
Alternative APNs
  • 0500-272.00-01.00-033.000
  • 288927200000010330000000
  • 472800549060
  • 561620

Interior

Building Area1,148 sqft Living Area
1st Floor Area1,148 sqft

Exterior

Year BuiltBuilt 1958
Effective Year BuiltEffective 1958
Lot Area9,148 sqft (0.21 acres)
Lot Dimensions125 ft deep x 75 ft wide
Garage TypeAttached
Garage Area264 sqft

Location & Zoning

Account Number561620
Street Address525 ISLIP AVE
CityISLIP
StateNY
Zip11751-1503
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeA
Legal DescriptionX2219238Y192436 T045H00000000
Legal Block2000
Legal Lot Number100
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group2
Census Block2007
Census Tract146206

Owner

Source: Suffolk County and Islip Town records · APN 472889 272.-1-33

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 Company Names on File
Mailing Address525 ISLIP AVE, ISLIP, NY 11751-1503
OccupancyOwner Occupied
Owner TypeCompany
VestingBorrower in Default

Deeds, Mortgages & Sale History

DateDocument
Jul 06, 2022Deed, Transfer
Jan 24, 2019Grant Deed, Mortgage
EMPIRE NAT'L BK
Jan 24, 2019Grant Deed, Mortgage
EMPIRE NAT'L BK

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last Transfer DateJun 22, 2022
Transfer Doc0131630471
Record UpdatedSep 20, 2026

July 2022: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateJul 06, 2022
Property Address525 ISLIP AVE, ISLIP, NY 11751-1503
Document Number0131630471
Book / Page13163 / 471
Instrument DateJun 22, 2022
Transaction TypeTransfer
Record UpdatedNov 14, 2023

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address525 ISLIP AVE, ISLIP, NY 11751-1503

January 2019: Grant Deed, Mortgage

Document TypeGrant Deed
JurisdictionSUFFOLK NY
Recording DateJan 24, 2019
Property Address525 ISLIP AVE, ISLIP, NY 11751-1503
Document Number0229980611
Book / Page022998 / 000611
Instrument DateDec 17, 2018
Transaction TypeMortgage
Record UpdatedFeb 26, 2019
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Multiple Parcels

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address1144 ATLANTIC AVE BALDWIN NY 115104205, BALDWIN, NY 11510-4205

Mortgage

Document Number0229980611
DateJan 24, 2019
Book Page022998/000611
Lender
NameEMPIRE NAT'L BK
TypeBank
Address1707 VETERANS HWY, ISLANDIA, NY 11749-1531
Agreement
AmountAmount Recorded

January 2019: Grant Deed, Mortgage

Document TypeGrant Deed
JurisdictionSUFFOLK NY
Recording DateJan 24, 2019
Property Address525 ISLIP AVE, ISLIP, NY 11751-1503
Document Number0229980611
Book / Page022998 / 000611
Instrument DateDec 17, 2018
Transaction TypeMortgage
Record UpdatedFeb 26, 2019

Transaction

Tax$0.00
Additional
  • Multiple Parcels

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address1144 ATLANTIC AVE BALDWIN NY 115104205, BALDWIN, NY 11510-4205

Mortgage

Document Number229980611
DateJan 24, 2019
Book Page022998/000611
Lender
NameEMPIRE NAT'L BK
TypeBank
Address1707 VETERANS HWY, ISLANDIA, NY 11749-1531
Agreement
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 and are not market price estimates.

YearTax BillAssessed ValueAssessed Market Value
2025$33,950 (-) Land $6,700 Building $27,250
2024$478,169 (+2.54%) Land $94,366 Building $383,803
2023$33,950 (-) Land $6,700 Building $27,250$466,346 (+13.74%) Land $92,033 Building $374,313
2022Homeowner's exemption Veteran's exemption$33,950 Land $6,700 Building $27,250$410,024 Land $80,918 Building $329,106

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 18, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies4 in force
Nearby Flood Claims9 (1979–2014)
Claims Outside the SFHA2 of 9
Most Recent ClaimAug 2014 · rainfall accumulation
Claims by Event
  • Hurricane Sandy, Oct 2012 · 2 claims

Wildfire

Wildfire RiskNot rated
no burnable land within 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 as of December 31, 2025 · Last verified October 2026

ProviderMax Down / Up (Mbps)
Optimum Communications
Fiber · Cable		8,000 / 8,000
Verizon
Fiber		2,300 / 2,300

May also be available: T-Mobile USA.

Based on FCC filings for 209 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemSUFFOLK COUNTY WATER AUTHORITY
serves 1,100,000 people
Water SourceGroundwater
Last State InspectionJan 2024
Lead1 ppb (2025–2027)
action level 15 ppb

Violations Reported to EPA

Water QualityAsbestos
resolved · Jul 2020
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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