4 Bay 1st St, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 4 Bay 1st St, Islip, NY 11751

Property Summary

Property TypeSingle Family Home
Lot Size0.29 acres (12,632 sqft)
Owner2 Individual Names on File
Deeds & MortgagesMar 2023 Line of Credit
Flood ZoneZone X (minimal risk)
APN472889 397.-2-67

Property Details

APN / Parcel Number

Primary APN472889 397.-2-67
Alternative APNs
  • 0500-397.00-02.00-067.000
  • 288939700000020670000000
  • 472800831610
  • 601950

Exterior

Lot Area12,632 sqft (0.29 acres)
Lot Dimensions106 ft deep x 120 ft wide

Location & Zoning

Account Number601950
Street Address4 BAY 1ST ST
CityISLIP
StateNY
Zip11751-4404
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeA
Legal DescriptionX2218753Y181762 T059H00000000
Legal Block7000
Legal Lot Number200
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group1
Census Block1019
Census Tract147402

Owner

4 Bay 1st St is owned and occupied by two individuals.

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

Owner of Record2 Individual Names on File
Mailing Address4 BAY 1ST ST, ISLIP, NY 11751-4404
OccupancyOwner Occupied
Owner TypeIndividual

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

Assessor's Deed Record

Deed Names2 Names on Deed
Record UpdatedSep 20, 2026

March 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address4 BAY 1ST ST, ISLIP, NY 11751-4404
Transaction TypeMortgage
Record UpdatedFeb 6, 2024
Title CompanyFIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0234890256
DateMar 8, 2023
Book Page23489/256
Lender
NameTEACHERS FCU
TypeCredit Union
Agreement
TypeLine of Credit
AmountAmount on Record
Term337 Months
DueApr 1, 2051
Interest
Rate TypeAdjustable Rate

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$47,500 Land $14,600 Building $32,900
2024$669,014 (+2.54%) Land $205,634 Building $463,380
2023$47,500 Land $14,600 Building $32,900$652,472 Land $200,549 Building $451,923

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

Flood

FEMA maps place 4 Bay 1st St in Zone X, an area of minimal flood risk, though there have been 19 flood claims nearby since 1980.

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 40 policies
Nearby Flood Policies40 in force
Nearby Flood Claims19 (1980–2023)
Claims Outside the SFHA18 of 19
Most Recent ClaimJul 2023 · rainfall accumulation
Claims by Event
  • Hurricane Sandy, Oct 2012 · 2 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

Wildfire risk around 4 Bay 1st St is low, with a 0.02% annual chance of wildfire.

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

Wildfire RiskLow
lower than 93% of the US · lower than 89% of New York
Wildfire Likelihood0.02% annual chance
ExposureDirect
burnable vegetation

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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