101 Hillside Ave, Williston Park, NY 11596 Property Records

Nassau County and North Hempstead Town property record for 101 Hillside Ave, Williston Park, NY 11596

Property Summary

Property Type	Commercial Office
Details	9,920 sqft · built 1952
Lot Size	0.106 acres (4,600 sqft)
Owner	Company Name on File
Last Sale	$1,490,000 (Sep 2017)
Tax Bill	$33,234 (2025)
Deeds & Mortgages	Sep 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`09-323-00-1061`

Property Details

APN / Parcel Number

Primary APN	`09-323-00-1061`
Alternative APNs	`2257-09-323-00-1061-0` `09323001061000000000` `282257 9.-323-1061` `09323 10610`

Interior

Units	16 Units
Stories	1 Story
Building Area	9,920 sqft Gross Area
1st Floor Area	6,720 sqft
Interior Walls	Finished/Painted

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1952
Exterior Material	Brick/Stone
Construction Type	Steel Frame
Fire Resistance	Masonry Walls, Wood Interior
Lot Area	4,600 sqft (0.106 acres)
Lot Dimensions	9.2 ft deep x 5 ft wide
View / Lot	Major Commercial Strip

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	09323 10610
Street Address	101 HILLSIDE AVE
City	WILLISTON PARK
State	NY
Zip	11596-2347
Property Category	Commercial
Property Type	Commercial > Office > Commercial Office
Legal Description	TOWN #2 SCH DIST 010
Legal Subdivision	MAP OF GARFIELD PARK
Legal Block	323
Legal Lot Number	1061
Jurisdiction	NASSAU NY
Township / Civil Division	NORTH HEMPSTEAD
Census Block Group	3
Census Block	3002
Census Tract	303302

Owner

101 Hillside Ave, a commercial property, is owned by a company that bought it in September 2017.

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

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

Owner of Record	Company Name on File
Mailing Address	135 SHRUB HOLLOW RD, ROSLYN, NY 11576-3125
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 6, 2017 · Amount on File
Deed Sale	Sep 6, 2017 · Amount on File
Prior Sale	Jul 6, 2011 · Amount on File
Deed Document Number	201788830
Deed Book / Page	13555 / 808
Record Updated	Oct 29, 2026

September 2017: Trustee's Deed, Transfer

Document Type	Trustee's Deed
Jurisdiction	NASSAU NY
Recording Date	Sep 6, 2017
Property Address	101 HILLSIDE AVE, WILLISTON PARK, NY 11596-2347
Document Number	0135550808
Book / Page	013555 / 000808
Instrument Date	Aug 24, 2017
Instrument	88830
Transaction Type	Transfer
Record Updated	Jan 3, 2018
Title Company	NEW YORK SETTLEMENT

Transaction

Amount	Amount on Record
Tax	$5,960.00
Amount Accuracy	Confirmed

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	135 SHRUB HOLLOW RD ROSLYN NY 115763125, ROSLYN, NY 11576-3125

Mortgage

Document Number	423570738
Date	Sep 6, 2017
Book Page	042357/000738
Instrument	88833

Lender

Name	CATHAY BK
Type	Bank
Address	235 5TH AVE, NEW YORK, NY 10016-8703

Agreement

Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 101 Hillside Ave was $33,234.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$5,593 Land $1,310 Building $4,283	$559,300
2025	$33,234.00
2023	$42,644.00	$7,125 Land $1,668 Building $5,457	$712,500

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 101 Hillside Ave 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 101 Hillside Ave 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	WILLISTON PARK (V) serves 7,287 people · EPA ID NY2902858
Water Source	Groundwater
Last State Inspection	Sep 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	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 774 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
T-Mobile Fixed Wireless	100 / 20