100 William St, Hempstead, NY 11550 Property Records

Nassau County and Hempstead Town property record for 100 William St, Hempstead, NY 11550

Property Summary

Property Type	Single Family Home
Details	3 ba · 1,453 sqft · built 1905
Lot Size	0.116 acres (5,040 sqft)
Owner	2 Individual Names on File
Last Sale	$575,000 (Oct 2021)
Tax Bill	$6,598 (2025)
Deeds & Mortgages	Jan 2024 Mortgage Oct 2021 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`34-403-00-0108`

Property Details

APN / Parcel Number

Primary APN	`34-403-00-0108`
Alternative APNs	`2013-34-403-00-0108-0` `34403000108000000000` `282013 34.-403-108` `34403 01080`

Interior

Full Baths	3 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,453 sqft Living Area
Gross Area	1,471 sqft
1st Floor Area	690 sqft
Basement Area	18 sqft
Game Room	Game Room

Exterior

Year Built	Built 1905
Effective Year Built	Effective 1905
Architectural Style	Old Style
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Material	Other
Lot Area	5,040 sqft (0.116 acres)
Lot Dimensions	125 ft deep x 40 ft wide
View / Lot	Highway
Garage Type	Detached
Garage Area	378 sqft
Parking Spaces	1 Parking Space

Exterior Amenities

Porch	Enclosed Porch
Porch Area	15 sqft
Shed	1 Shed
Shed Area	204 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	34403 01080
Street Address	100 WILLIAM ST
City	HEMPSTEAD
State	NY
Zip	11550-5140
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TOWN #1 SCH DIST 001
Legal Block	403
Legal Lot Number	108-1
Jurisdiction	NASSAU NY
Township / Civil Division	HEMPSTEAD
Census Block Group	2
Census Block	2008
Census Tract	407201

Owner

100 William St is owned and occupied by two individuals who bought it in October 2021.

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

Owner of Record	2 Individual Names on File
Mailing Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140
Occupancy	Owner Occupied
Owner Type	Individual

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

Deeds, Mortgages & Sale History

Date	Document
Jan 9, 2024	Deed of Trust, Mortgage · FHA Mortgage DEPARTMENT OF HOUSING & URBAN DEV
Oct 26, 2021	Bargain and Sale Deed, Transfer · FHA Mortgage CLIFFCO INC
Jul 23, 2021	Deed of Trust, Mortgage · Stand-Alone First Mortgage 7 COVERT REALTY LLC
Jun 23, 2021	Executor's Deed, Transfer OLD REPUBLIC TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 26, 2021 · Amount on File
Deed Sale	Oct 26, 2021 · Amount on File
Prior Sale	Jun 23, 2021 · Amount on File
Deed Document Number	2021-139208
Deed Book / Page	14155 / 918
Record Updated	Oct 29, 2026

January 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NASSAU NY
Property Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140
Transaction Type	Mortgage
Record Updated	Jan 17, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140

Mortgage

Document Number	M473960953
Date	Jan 9, 2024
Book Page	M47396/953
Instrument	2024-1743

Lender

Name	DEPARTMENT OF HOUSING & URBAN DEV
Type	Government Agency
Address	WASHINGTON, DC 20410

Agreement

Type	FHA Mortgage
Amount	Amount on Record
Term	333 Months
Due	Oct 1, 2051

October 2021: Bargain and Sale Deed, Transfer

Document Type	Bargain and Sale Deed
Jurisdiction	NASSAU NY
Recording Date	Oct 26, 2021
Property Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140
Document Number	0141550918
Book / Page	14155 / 918
Map Reference	FILE 290 CASE 2092
Instrument Date	Sep 30, 2021
Instrument	2021-139208
Transaction Type	Transfer
Record Updated	Nov 24, 2021
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,300.00
Amount Accuracy	Rounded by County
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name
Address	81 QUEENS BOULEVARD, 81, ELMHURST, NY 11373

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140

Mortgage

Document Number	202113920945980363
Date	Oct 26, 2021
Instrument	2021-13920945980363

Lender

Name	CLIFFCO INC

Agreement

Type	FHA Mortgage
Amount	Amount on Record

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NASSAU NY
Property Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140
Transaction Type	Mortgage
Record Updated	Aug 11, 2021
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0456570458
Date	Jul 23, 2021
Book Page	45657/458
Instrument	2021-097434

Lender

Name	7 COVERT REALTY LLC
Type	Funding / Finance Company

Agreement

Type	Stand-Alone First Mortgage
Amount	Amount on Record

Interest

Rate Type	Fixed Rate

June 2021: Executor's Deed, Transfer

Document Type	Executor's Deed
Jurisdiction	NASSAU NY
Recording Date	Jun 23, 2021
Property Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140
Document Number	0140970164
Book / Page	14097 / 164
Map Reference	FILE 290 CASE 2092
Instrument Date	Mar 4, 2021
Instrument	2021-082184
Transaction Type	Transfer
Record Updated	Jul 14, 2021
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Tax	$1,160.00
Amount Accuracy	Rounded by County
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name
Address	1036 NEWBRIDGE RD, 1036, NORTH BELLMORE, NY 11710-1641

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	100 WILLIAM ST, HEMPSTEAD, NY 11550-5140

Tax Assessment & Valuation

The 2025 property tax bill for 100 William St was $6,598 with a homeowner's exemption.

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

Property Jurisdictions

Type	Name
State	New York
County	Nassau County
County Subdivision	Hempstead Town
Municipality	Hempstead Village
Unified School District	Hempstead Union Free School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$277 Land $117 Building $160	$277,000
2025	$6,598.00
2023	$6,770.00 Additional exemption filed	$260 Land $117 Building $143	$260,000

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

Flood

FEMA maps place 100 William St in Zone X, an area of minimal flood risk.

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

The area around 100 William St 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	HEMPSTEAD (V) serves 56,000 people · EPA ID NY2902827
Water Source	Groundwater
Last State Inspection	Nov 2025
Lead	Under 1 ppb (2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 627 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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