91 Oak St, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 91 Oak St, Islip, NY 11751

Property Summary

Property Type	Single Family Home
Details	1,105 sqft · built 1927
Lot Size	0.21 acres (9,148 sqft)
Owner	2 Individual Names on Record
Last Sale	$365,000 (Jun 2020)
Tax Bill	$10,628 (2024)
Deeds & Mortgages	Jun 2020 Sale
Flood Zone	Zone X (minimal risk)
APN	`472889 320.-2-55`

Property Details

APN / Parcel Number

Primary APN	`472889 320.-2-55`
Alternative APNs	`0500-320.00-02.00-055.000` `288932000000020550000000` `472800655650` `589570`

Interior

Building Area	1,105 sqft Living Area
1st Floor Area	811 sqft

Exterior

Year Built	Built 1927
Effective Year Built	Effective 1927
Lot Area	9,148 sqft (0.21 acres)
Lot Dimensions	125 ft deep x 75 ft wide
Garage Type	Detached
Garage Area	234 sqft

Location & Zoning

Account Number	589570
Street Address	91 OAK ST
City	ISLIP
State	NY
Zip	11751-2809
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	B
Legal Description	X2220586Y188802 T044H00000000
Legal Subdivision	ISLIP MANOR
Legal Block	0002
Legal Lot Number	200
Jurisdiction	SUFFOLK NY
Township / Civil Division	ISLIP
Census Block Group	1
Census Block	1005
Census Tract	147401

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	91 OAK ST, ISLIP, NY 11751-2809
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 18, 2020 · Amount on Record
Deed Sale	Jun 18, 2020 · Amount on Record
Prior Sale	Aug 15, 2016 · Amount on Record
Deed Book / Page	13061 / 562
Record Updated	Sep 20, 2026

June 2020: Deed, Transfer

Document Type	Deed
Jurisdiction	SUFFOLK NY
Recording Date	Jun 18, 2020
Property Address	91 OAK ST, ISLIP, NY 11751-2809
Document Number	0130610562
Book / Page	13061 / 562
Instrument Date	May 21, 2020
Transaction Type	Transfer
Record Updated	Aug 20, 2021

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Investor	Possibly a Property Investor

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	New York
County	Suffolk County
County Subdivision	Islip Town
Unified School District	Islip Union Free School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$31,900 (-) Land $6,700 Building $25,200	$449,296 (-) Land $94,366 Building $354,930
2024	$10,628.00		$449,296 (+2.54%) Land $94,366 Building $354,930
2023		$31,900 Land $6,700 Building $25,200	$438,187 Land $92,033 Building $346,154

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.

Flood

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	4 in force
Nearby Flood Claims	25 (1979–2023)
Claims Outside the SFHA	18 of 25
Most Recent Claim	Jul 2023 · river or lake flooding
Claims by Event	Severe Storms And Flooding, Mar 2010 · 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

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

Wildfire Risk	Not 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 System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526
Water Source	Groundwater
Last State Inspection	Jan 2024
Lead	1 ppb (2025–2027) action level 15 ppb

Violations Reported to EPA

Water Quality	Asbestos resolved · Jul 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 441 locations within half a mile, as of December 31, 2025

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