9 Thadeus Ln, West Islip, NY 11795 Property Records

Suffolk County and Islip Town property record for 9 Thadeus Ln, West Islip, NY 11795

Property Summary

Property Type	Single Family Home
Lot Size	0.2 acres (8,712 sqft)
Owner	2 Individual Names on File
Last Sale	$147,500 (Feb 1995)
Deeds & Mortgages	Nov 2018 Refinance
Flood Zone	Zone X (minimal risk)
APN	`472889 466.-2-84`

Property Details

APN / Parcel Number

Primary APN	`472889 466.-2-84`
Alternative APNs	`0500-466.00-02.00-084.000` `288946600000020840000000` `472800933780` `024780`

Exterior

Lot Area	8,712 sqft (0.2 acres)
Lot Width	94.6 ft Width

Location & Zoning

Account Number	024780
Street Address	9 THADEUS LN
City	WEST ISLIP
State	NY
Zip	11795-3819
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	B
Legal Description	X2191564Y173109 T052H00000000
Legal Subdivision	MAP PARKWOOD LAKES
Legal Block	6000
Legal Lot Number	200
Jurisdiction	SUFFOLK NY
Township / Civil Division	ISLIP
Census Block Group	2
Census Block	2015
Census Tract	146901

Owner

9 Thadeus Ln is owned and occupied by two individuals who bought it in February 1995.

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

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

Owner of Record	2 Individual Names on File
Mailing Address	9 THADEUS LN, WEST ISLIP, NY 11795-3819
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 17, 1995 · Amount on File
Deed Sale	Feb 17, 1995 · Amount on File
Deed Book / Page	11715 / 256
Record Updated	Sep 20, 2026

November 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SUFFOLK NY
Property Address	9 THADEUS LN, WEST ISLIP, NY 11795-3819
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0229800419
Date	Nov 26, 2018
Book Page	22980/419

Lender

Name	TEACHERS FCU
Type	Credit Union

Agreement

Type	Stand-Alone Refinance
Amount	Amount on Record
Term	217 Months
Due	Dec 1, 2036

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	West Islip Union Free School District (PK - 12)

Tax Bill & Assessment History

Year	Assessed Value	Assessed Market Value
2025	$44,100 Land $10,500 Building $33,600
2024		$621,126 (+2.54%) Land $147,887 Building $473,239
2023	$44,100 Land $10,500 Building $33,600	$605,769 Land $144,231 Building $461,538

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

FEMA maps place 9 Thadeus Ln in Zone X, an area of minimal flood risk, though there have been 22 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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 15 policies
Nearby Flood Policies	15 in force
Nearby Flood Claims	22 (1978–2014)
Claims Outside the SFHA	22 of 22
Most Recent Claim	Aug 2014 · rainfall accumulation
Claims by Event	Severe Storms And Flooding, Mar 2010 · 4 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 9 Thadeus Ln 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 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 355 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
T-Mobile Fixed Wireless	100 / 20