21 Langdon St, Islip, NY 11751 Property Records

Suffolk County and Islip Town property record for 21 Langdon St, Islip, NY 11751

Property Summary

Property Type	Single Family Home
Lot Size	0.26 acres (11,326 sqft)
Owner	Individual Name on Record
Last Sale	$20,000 (Mar 2017)
Tax Bill	$12,715 (2024)
Deeds & Mortgages	Jul 2020 Refinance May 2018 Refinance + 1 more
Flood Zone	Zone X (minimal risk)
APN	`472889 270.-2-47`

Property Details

APN / Parcel Number

Primary APN	`472889 270.-2-47`
Alternative APNs	`0500-270.00-02.00-047.000` `288927000000020470000000` `472800544340` `572890`

Exterior

Lot Area	11,326 sqft (0.26 acres)
Lot Width	77 ft Width

Location & Zoning

Account Number	572890
Street Address	21 LANGDON ST
City	ISLIP
State	NY
Zip	11751-1022
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	B
Legal Description	X2214061Y192010 T043H00000000WL
Legal Block	0002
Legal Lot Number	200
Jurisdiction	SUFFOLK NY
Township / Civil Division	ISLIP
Census Block Group	1
Census Block	1017
Census Tract	146103

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	Individual Name on Record
Mailing Address	21 LANGDON ST, ISLIP, NY 11751-1022
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 21, 2020	Deed of Trust, Mortgage · Stand-Alone Refinance SIERRA PACIFIC MORTGAGE CO INC
May 4, 2018	Deed of Trust, Mortgage · Stand-Alone Refinance BETHPAGE FCU
Mar 13, 2017	Grant Deed, Transfer NEW YORK PROPERTY ABSTRACT, NEW YORK PROP ABSTRACT

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 13, 2017 · Amount on Record
Deed Sale	Mar 13, 2017 · Amount on Record
Deed Book / Page	12904 / 359
Prior Transfer Date	Jan 30, 2017
Prior Transfer Doc	0129040359
Record Updated	Sep 20, 2026

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SUFFOLK NY
Property Address	21 LANGDON ST, ISLIP, NY 11751-1022
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0231540914
Date	Jul 21, 2020
Book Page	23154/914
Instrument	DL016472

Lender

Name	SIERRA PACIFIC MORTGAGE CO INC
Type	Mortgage Company

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2050

May 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SUFFOLK NY
Property Address	21 LANGDON ST, ISLIP, NY 11751-1022
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SERVICE LINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0229230222
Date	May 4, 2018
Book Page	22923/222
Instrument	18-0083205

Lender

Name	BETHPAGE FCU
Type	Credit Union

Agreement

Type	Stand-Alone Refinance
Amount	Amount Recorded
Term	349 Months
Due	Jun 1, 2047

March 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SUFFOLK NY
Recording Date	Mar 13, 2017
Property Address	21 LANGDON ST, ISLIP, NY 11751-1022
Document Number	0129040359
Book / Page	012904 / 000359
Instrument Date	Jan 30, 2017
Transaction Type	Transfer
Record Updated	Jul 25, 2017
Title Company	NEW YORK PROPERTY ABSTRACT, NEW YORK PROP ABSTRACT

Transaction

Amount	Amount Recorded
Tax	$80.00
Amount Accuracy	Confirmed

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21 LANGDON ST ISLIP NY 117511022, ISLIP, NY 11751-1022

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		$42,000 (-) Land $8,000 Building $34,000	$591,549 (-) Land $112,676 Building $478,873
2024	$12,715.00		$591,549 (+2.54%) Land $112,676 Building $478,873
2023		$42,000 Land $8,000 Building $34,000	$576,923 Land $109,890 Building $467,033

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

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	7 in force
Nearby Flood Claims	6 (1979–2014)
Claims Outside the SFHA	5 of 6
Most Recent Claim	Aug 2014 · rainfall accumulation

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	Low lower than 98% of the US · lower than 97.9% of New York
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 491 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

May also be available: T-Mobile.

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