475 Underhill Blvd, Syosset, NY 11791 Property Records

Nassau County and Oyster Bay Town property record for 475 Underhill Blvd, Syosset, NY 11791

Property Summary

Property Type	Storage Yard, Open Storage (Light Equipment, Material)
Details	101,820 sqft · built 1963
Lot Size	3.48 acres (151,589 sqft)
Owner	Company Name on File
Last Sale	$15,675,000 (Mar 2026)
Tax Bill	$20,415 (2026)
Deeds & Mortgages	Mar 2026 Sale
Flood Zone	Zone X (minimal risk)
APN	`15-169-00-0016`

Property Details

APN / Parcel Number

Primary APN	`15-169-00-0016`
Alternative APNs	`2489-15-169-00-0016-0` `15169000016000000000` `282489 15.-169-16` `15169 00160`

Interior

Units	2 Units
Stories	1 Story
Building Area	101,820 sqft Gross Area
1st Floor Area	76,280 sqft
Interior Walls	Finished/Painted
Fire Sprinklers	Fire Sprinklers
Elevator	Elevator

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1963
Exterior Material	Brick Veneer
Construction Type	Steel Frame
Fire Resistance	Masonry Walls, Wood Interior
Lot Area	151,589 sqft (3.48 acres)
View / Lot	Commercial/Industrial
Porch	Slab
Porch Area	100 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	15169 00160
Street Address	475 UNDERHILL BLVD
City	SYOSSET
State	NY
Zip	11791-3423
Property Category	Industrial
Property Type	Industrial > Storage Yard, Open Storage (Light Equipment, Material)
Legal Description	TOWN #3 SCH DIST 014
Legal Block	169
Legal Lot Number	16
Jurisdiction	NASSAU NY
Township / Civil Division	OYSTER BAY
Census Block Group	2
Census Block	2022
Census Tract	518300

Owner

475 Underhill Blvd, an industrial property, is owned by a company that bought it in March 2026.

Source: Nassau County and Oyster Bay Town records, as of August 10, 2026

Owner of Record	Company Name on File
Mailing Address	137 RIVERSIDE DR, 6B, NEW YORK, NY 10024-3721
Owner Type	Company
Vesting	Limited Liability Company

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

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 31, 2026 · Amount on File
Deed Sale	Mar 31, 2026 · Amount on File
Deed Document Number	202621084
Deed Book / Page	D14735 / 120
Prior Transfer Date	Mar 11, 2000
Prior Transfer Doc	1120000873
Record Updated	Sep 20, 2026

March 2026: Bargain and Sale Deed, Transfer

Document Type	Bargain and Sale Deed
Jurisdiction	NASSAU NY
Recording Date	Mar 31, 2026
Property Address	475 UNDERHILL BLVD, SYOSSET, NY 11791-3423
Document Number	D147350120
Book / Page	D14735 / 120
Instrument Date	Mar 20, 2026
Instrument	2026-21084
Transaction Type	Transfer
Record Updated	May 13, 2026
Title Company	FIRST AMERICAN TITLE INSURANCE COMPANY NC, FIRST AMERICAN TITLE INS CO

Transaction

Amount	Amount on Record
Tax	$62,700.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	475 UNDERHILL BLVD, SYOSSET, NY 11791-3423

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	137 RIVERSIDE DR APT 6B, 6B, NEW YORK, NY 10024-3721

Tax Assessment & Valuation

The 2026 property tax bill for 475 Underhill Blvd was $20,415, down 91.4% from the year before.

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	Syosset Central School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$20,415.00 (-91.37%)	$33,978 (-4.15%) Land $23,230 Building $10,748	$3,397,800 (-4.15%)
2025	$236,428.00	$35,448 Land $24,235 Building $11,213	$3,544,800
2023	$240,293.00	$41,355 Land $28,273 Building $13,082	$4,135,500

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 475 Underhill Blvd in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective April 5, 2023 · 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	1 in force

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

Wildfire risk around 475 Underhill Blvd is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% 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	JERICHO WD public/private · serves 58,000 people · EPA ID NY2902831
Water Source	Groundwater
Last State Inspection	Oct 2023
Lead	2 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Corrosion control Jul 2023
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 100 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Optimum Cable · Fiber in parts of the area	940 / 35
T-Mobile Fixed Wireless	100 / 20