172 Union Ave, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 172 Union Ave, Islip, NY 11751

Property Summary

Property TypeSingle Family Home
Details900 sqft · built 1931
Lot Size0.18 acres (7,841 sqft)
OwnerCompany Name on File
Deeds & MortgagesJul 2021 Sale
Nov 2018 Transfer
Flood ZoneZone X (minimal risk)
APN472889 396.-4-54

Property Details

APN / Parcel Number

Primary APN472889 396.-4-54
Alternative APNs
  • 0500-396.00-04.00-054.000
  • 288939600000040540000000
  • 472800829620
  • 033542

Interior

Building Area900 sqft Living Area
1st Floor Area900 sqft

Exterior

Year BuiltBuilt 1931
Effective Year BuiltEffective 1931
Lot Area7,841 sqft (0.18 acres)
Lot Width50 ft Width
Garage TypeDetached
Garage Area240 sqft

Location & Zoning

Account Number033542
Street Address172 UNION AVE
CityISLIP
StateNY
Zip11751-4315
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeB
Legal DescriptionX2218174Y182354 T059H00000000
Legal Block6000
Legal Lot Number400
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group3
Census Block3015
Census Tract147402

Owner

172 Union Ave, a single family home, is owned by a company.

Source: Suffolk County and Islip Town records, as of August 11, 2026

Owner of RecordCompany Name on File
Mailing Address65 UNION AVE, ISLIP, NY 11751-3919
Owner TypeCompany
VestingCompany

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Jul 15, 2021Deed, Transfer
Nov 21, 2018Quit Claim Deed, Transfer
Quitclaim

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedSep 20, 2026

July 2021: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateJul 15, 2021
Property Address172 UNION AVE, ISLIP, NY 11751-4315
Document Number0131120408
Book / Page13112 / 408
Instrument DateMay 5, 2021
Transaction TypeTransfer
Record UpdatedJan 17, 2022

Transaction

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

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address65 UNION AVE, ISLIP, NY 11751-3919

November 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSUFFOLK NY
Recording DateNov 21, 2018
Property Address172 UNION AVE, ISLIP, NY 11751-4315
Document Number0129880239
Book / Page012988 / 000239
Instrument DateApr 17, 2018
Transaction TypeTransfer
Record UpdatedDec 27, 2018

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address65 UNION AVE ISLIP NY 117513919, ISLIP, NY 11751-3919

Tax Assessment & Valuation

Source: Suffolk County and Islip Town assessment roll, as of August 11, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

YearAssessed ValueAssessed Market Value
2025$23,500 Land $7,200 Building $16,300
2024$330,985 (+2.53%) Land $101,408 Building $229,577
2023$23,500 Land $7,200 Building $16,300$322,802 Land $98,901 Building $223,901

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 172 Union Ave in Zone X, an area of minimal flood risk, though there have been 75 flood claims nearby since 1978.

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on File
median of 53 policies
Nearby Flood Policies53 in force
Nearby Flood Claims75 (1978–2021)
Claims Outside the SFHA44 of 75
Most Recent ClaimSep 2021 · Remnants Of Hurricane Ida
Claims by Event
  • Hurricane Sandy, Oct 2012 · 27 claims
  • Coastal Storm, High Tides, Heavy Rain, & Flooding, Dec 1992 · 4 claims
  • Hurricane Gloria, Sep 1985 · 5 claims

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.

Wildfire

The area around 172 Union Ave has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemSUFFOLK COUNTY WATER AUTHORITY
serves 1,100,000 people · EPA ID NY5110526
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, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 357 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber
2,300 / 2,300
T-Mobile
Fixed Wireless
100 / 20

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