18 William St, Bethpage, NY 11714 Property Records

Nassau County and Oyster Bay Town property record for 18 William St, Bethpage, NY 11714

Property Summary

Property Type	Single Family Home
Details	1.5 ba · 2,040 sqft · built 1950
Lot Size	0.166 acres (7,250 sqft)
Owner	2 Trust Names on Record
Last Sale	$565,000 (Sep 2018)
Tax Bill	$14,292 (2025)
Deeds & Mortgages	Feb 2020 Loan Modification Mar 2020 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`49-103-00-0237`

Property Details

APN / Parcel Number

Primary APN	`49-103-00-0237`
Alternative APNs	`2489-49-103-00-0237-0` `49103000237000000000` `282489 49.-103-237` `49103 02370`

Interior

Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,040 sqft Living Area
1st Floor Area	768 sqft
Game Room	Game Room

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Architectural Style	Colonial
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Material	Other
Lot Area	7,250 sqft (0.166 acres)
Lot Dimensions	141 ft deep x 50 ft wide

Exterior Amenities

Pool Area	648 sqft
Patio Area	252 sqft
Balcony Area	96 sqft
Utility Building	96 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Heating Fuel	Oil
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	49103 02370
Street Address	18 WILLIAM ST
City	BETHPAGE
State	NY
Zip	11714-4407
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TOWN #3 SCH DIST 021
Legal Subdivision	CENTRAL PK
Legal Block	103
Legal Lot Number	237-2
Jurisdiction	NASSAU NY
Township / Civil Division	OYSTER BAY
Census Block Group	4
Census Block	4017
Census Tract	520002

Owner

Source: Nassau County and Oyster Bay Town records, as of June 17, 2026

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

Owner of Record	2 Trust Names on Record
Mailing Address	18 WILLIAM ST, BETHPAGE, NY 11714-4407
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 21, 2020	Loan Modification, Consolidation and Extension, Mortgage · Conventional with PMI WELLS FARGO BK
Mar 11, 2020	Bargain and Sale Deed, Transfer FIDELITY NATIONAL TITLE
Sep 14, 2018	Bargain and Sale Deed, Transfer OLD REPUBLIC NATIONAL TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 14, 2018 · Amount on Record
Deed Sale	Sep 14, 2018 · Amount on Record
Deed Document Number	2018-083010
Deed Book / Page	13707 / 504
Last Transfer Date	May 31, 2024
Transfer Doc	D145030920
Record Updated	Sep 20, 2026

February 2020: Loan Modification, Consolidation and Extension, Mortgage

Document Type	Loan Modification, Consolidation and Extension
Jurisdiction	NASSAU NY
Property Address	18 WILLIAM ST, BETHPAGE, NY 11714-4407
Document Number	0440930451
Instrument Date	Feb 21, 2020
Transaction Type	Mortgage
Record Updated	Jun 1, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18 WILLIAM ST BETHPAGE NY 117144407, BETHPAGE, NY 11714-4407

Mortgage

Document Number	0440930451
Date	Mar 11, 2020
Book Page	044093/000451
Instrument	26062

Lender

Name	WELLS FARGO BK
Type	Bank
Address	MINNEAPOLIS, MN 55467-8000

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Mar 10, 2050

Interest

Rate Type	Fixed Rate
Rate	3.75%

March 2020: Bargain and Sale Deed, Transfer

Document Type	Bargain and Sale Deed
Jurisdiction	NASSAU NY
Recording Date	Mar 11, 2020
Property Address	18 WILLIAM ST, BETHPAGE, NY 11714-4407
Document Number	0139240272
Book / Page	13924 / 272
Map Reference	MAP 263 CASE 1969
Instrument Date	Feb 21, 2020
Instrument	2020-026060
Transaction Type	Transfer
Record Updated	Aug 19, 2022
Title Company	FIDELITY NATIONAL TITLE

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name
Address	18 WILLIAM ST, 18, BETHPAGE, NY 11714-4407

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18 WILLIAM ST, BETHPAGE, NY 11714-4407

September 2018: Bargain and Sale Deed, Transfer

Document Type	Bargain and Sale Deed
Jurisdiction	NASSAU NY
Recording Date	Sep 14, 2018
Property Address	18 WILLIAM ST, BETHPAGE, NY 11714-4407
Document Number	0137070504
Book / Page	13707 / 504
Map Reference	MAP 263
Instrument Date	Sep 6, 2018
Instrument	2018-083010
Transaction Type	Transfer
Record Updated	Feb 6, 2021
Title Company	OLD REPUBLIC NATIONAL TITLE

Transaction

Amount	Amount Recorded
Tax	$2,260.00
Amount Accuracy	Calculated from Transfer Tax
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name
Address	18 WILLIAM ST, 18, BETHPAGE, NY 11714-4407

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	168 FULTON ST, FARMINGDALE, NY 11735-2567

Tax Assessment & Valuation

Source: Nassau County and Oyster Bay Town assessment roll, as of June 17, 2026

Property Jurisdictions

Type	Name
State	New York
County	Nassau County
County Subdivision	Oyster Bay Town
Unified School District	Bethpage Union Free School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$500 (-2.91%) Land $228 Building $272	$500,000 (-2.91%)
2025	$14,292.00 (+12.48%)	$515 (-3.38%) Land $235 Building $280	$515,000 (-3.38%)
2023	$12,706.00 Additional exemption filed	$533 Land $243 Building $290	$533,000

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 April 5, 2023

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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	BETHPAGE WD serves 33,000 people · EPA ID NY2902817
Water Source	Groundwater
Last State Inspection	Jul 2025
Lead	Under 1 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
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 714 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300

May also be available: T-Mobile.

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