40 William St, Valley Stream, NY 11580 Property Records

Nassau County and Hempstead Town property record for 40 William St, Valley Stream, NY 11580 · Last verified August 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bathrooms	2 Baths
Year Built	Built 1941
Square Footage	1,756 sqft Living Area
Lot Size	5,400 sqft (0.124 acres)
Garage	Attached, 210 sqft
Occupancy	Owner Occupied
Last Sale	$555,000 (2019)
Tax Bill	$12,359.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`37-486-00-0142`
Alternative APNs	`2089-37-486-00-0142-0` `37486000142000000000` `282089 37.-486-142` `37486 01420`

Interior

Full Baths	2 Baths
Total Rooms	5 Rooms
Building Area	1,756 sqft Living Area
Gross Area	1,966 sqft Gross Area
1st Floor	981 sqft 1st Floor
Attic Area	140 sqft Attic
Attic	1 Attic
Game Room	Game Room
Stories	1 Stories
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1941
Effective Year Built	Effective 1941
Architectural Style	Cape Cod Style
Exterior Material	Brick/Stone (Brick and/or Stone) Exterior
Construction Type	Frame Construction
Roof Material	Other (not Classified) Roof
Lot Area	5,400 sqft (0.124 acres)
Depth X Width	100 ft x 54 ft Depth x Width
Parking Spaces	1 Parking Spaces
Garage Type	Attached Garage
Garage Area	210 sqft Garage
Patio Area	77 sqft Patio

Utilities and HVAC

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

Location & Zoning

Account Number	37486 01420
Street Address	40 WILLIAM ST
City	VALLEY STREAM
State	NY
Zip	11580-1030
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	TOWN #1 SCH DIST 016
Legal Block	486
Legal Lot Number	142
Jurisdiction	NASSAU NY
Minor Civil Division	HEMPSTEAD
Census Blockgroup	6
Census Block	6003
Census Tract	409900

Owner

Source: Nassau County and Hempstead Town records · APN 37-486-00-0142

Assessment roll updated June 17, 2026 · Last verified August 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 File
Mailing Address	40 WILLIAM ST, VALLEY STREAM, NY 11580-1030
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jun 07, 2019 · Amount on Record
Deed Sale	Jun 07, 2019 · Amount on Record
Prior Sale	Aug 24, 2005 · Amount on Record
Deed Doc Number	2019-047581
Deed Book / Page	13810 / 829
Prior Transfer Date	May 03, 2014
Prior Transfer Doc	D130770853
Record Refreshed	Sep 20, 2026

June 2019: Bargain and Sale Deed, Transfer

Document Type	Bargain and Sale Deed
Jurisdiction	NASSAU NY
Recording Date	Jun 07, 2019
Property Address	40 WILLIAM ST, VALLEY STREAM, NY 11580-1030
Document Number	0138100829
Book / Page	13810 / 829
Map Reference	LB 12291 PG 518
Instrument Date	May 15, 2019
Instrument	2019-047581
Transaction Type	Transfer
Record Updated	May 14, 2021
Title Company	AMTRUST TITLE

Transaction

Amount	Amount Recorded
Tax	$2,220.00
Amount Accuracy	Calculated from Tax
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	8631 126TH ST, RICHMOND HILL, NY 11418-2600
Investor	Possibly a Property Investor

Tax Assessment & Valuation

Source: Nassau County and Hempstead Town records · Assessment roll updated June 17, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	New York
County	Nassau County
County Subdivision	Hempstead Town
Elementary School District	Elmont Union Free School District (PK - 06)
Secondary School District	Sewanhaka Central High School District (07 - 12)

Tax Bill & Assessment History

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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$498 (-) Land $197 Building $301	$498,000 (-)
2025	$12,359.00 (+15.78%) Homeowner's exemption	$498 (-) Land $197 Building $301	$498,000 (-)
2023	$10,675.00 Additional exemption filed	$498 Land $197 Building $301	$498,000