23 Harbor Ave, Islip, NY 11751 Property Records

Suffolk County and East Hampton Town property record for 23 Harbor Ave, Islip, NY 11751 · Last verified August 2026

Property Summary

Property TypeSingle Family Home
Lot Size0.27 acres (11,761 sqft)
OwnerIndividual Name on File
Last Sale$1,065,000 (Dec 2016)
Tax Bill$3,514 (2024)
Flood ZoneZone X (minimal risk)
APN472403 6.-7-6

Property Details

APN / Parcel Number

Primary APN472403 6.-7-6
Alternative APNs
  • 0302-006.00-07.00-006.000
  • 240300600000070060000000
  • 47240027980

Exterior

Lot Area11,761 sqft (0.27 acres)

Location & Zoning

Street Address23 HARBOR AVE
CityISLIP
StateNY
Zip11751
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionBLK LOT 41
Legal SubdivisionSAG HARBOR BEACH CLUB
Legal Block7
Legal Lot Number6
JurisdictionSUFFOLK NY
Township / Civil DivisionEAST HAMPTON
Census Block Group1
Census Block1005
Census Tract200903

Owner

Source: Suffolk County and East Hampton Town records · APN 472403 6.-7-6

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 Address2050 LOGGIA, NEWPORT BEACH CA 92660
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleDec 19, 2016 · Amount on Record
Deed SaleDec 19, 2016 · Amount on Record
Prior SaleJan 31, 2006 · Amount on Record
Deed Book / Page12893 / 151
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionEast Hampton Town
MunicipalitySag Harbor Village
Unified School DistrictSag Harbor Union Free School District (PK - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

YearTax BillAssessed ValueAssessed Market Value
2025$6,300 (-) Land $200 Building $6,100
2024$3,514.00
2023$6,300 Land $200 Building $6,100$7,348 Land $233 Building $7,115

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 361032009031, 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
Flood Insurance CostPremium on Record
median of 70 individual NFIP policies nearby
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies70 in force
Nearby Flood Claims3 (2012–2024)
Claims Outside the SFHA2 of 3
Most Recent ClaimJan 2024, rainfall accumulation

Wildfire

Wildfire RiskLow
above 20% of the US · above 55% of New York
Wildfire LikelihoodAbout 1 in 10,000 per year
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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.

Historic Designation

Source: NPS National Register of Historic Places · August 1, 2026 release · Last verified October 2026

Historic DistrictWithin the Sag Harbor Hills, Azurest, and Ninevah Beach Subdivisions Historic District
listed 2019 · 201 contributing resources · NRIS 100004217

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 163 locations within about half a mile of this property

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

May also be available at this address: T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G (outdoors only) and 4G LTE

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