549 Cornwell Ave, Malverne, NY 11565 Property Records

Nassau County and Hempstead Town property record for 549 Cornwell Ave, Malverne, NY 11565

Property Summary

Property Type	Duplex
Details	2.5 ba · 2,684 sqft · built 1838
Lot Size	0.313 acres (13,652 sqft)
Owner	Company Name on File
Last Sale	$545,000 (Sep 2023)
Tax Bill	$12,662 (2025)
Deeds & Mortgages	Sep 2023 Sale
Flood Zone	Zone X (minimal risk)
APN	`35-226-00-0123`

Property Details

APN / Parcel Number

Primary APN	`35-226-00-0123`
Alternative APNs	`2027-35-226-00-0123-0` `35226000123000000000` `282027 35.-226-123` `35226 01230`

Interior

Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Units	2 Units
Stories	2 Stories
Building Area	2,684 sqft Living Area
Gross Area	3,572 sqft
1st Floor Area	1,302 sqft
Basement Area	40 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1838
Effective Year Built	Effective 1838
Architectural Style	Colonial
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Foundation Type	Block
Roof Material	Other
Lot Area	13,652 sqft (0.313 acres)
Lot Dimensions	130 ft deep x 105 ft wide
Garage Type	Attached
Garage Area	480 sqft
Parking Spaces	2 Parking Spaces
Porch	Enclosed Frame Porch
Porch Area	368 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	35226 01230
Street Address	549 CORNWELL AVE
City	MALVERNE
State	NY
Zip	11565-1347
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Description	TOWN #1 SCH DIST 013
Legal Block	226
Legal Lot Number	123
Jurisdiction	NASSAU NY
Township / Civil Division	HEMPSTEAD
Census Block Group	5
Census Block	5008
Census Tract	410100

Owner

549 Cornwell Ave, a duplex, is owned by a company that bought it in September 2023.

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

Owner of Record	Company Name on File
Mailing Address	543 CORNWELL AVE, MALVERNE, NY 11565-1347
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	Sep 8, 2023 · Amount on File
Deed Sale	Sep 8, 2023 · Amount on File
Prior Sale	Nov 3, 2011 · Amount on File
Deed Document Number	2023-53519
Deed Book / Page	D14416 / 439
Prior Transfer Date	Apr 9, 2009
Prior Transfer Doc	0125030447
Record Updated	Oct 29, 2026

September 2023: Administrator's Deed, Transfer

Document Type	Administrator's Deed
Jurisdiction	NASSAU NY
Recording Date	Sep 8, 2023
Property Address	549 CORNWELL AVE, MALVERNE, NY 11565-1347
Document Number	D144160439
Book / Page	D14416 / 439
Instrument Date	Jul 28, 2023
Instrument	2023-53519
Transaction Type	Transfer
Record Updated	Sep 13, 2023
Title Company	LAKE ABSTRACT INC, LEO ABSTRACT INC

Transaction

Amount	Amount on Record
Tax	$2,180.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	549 CORNWELL AVE # 551, 551, MALVERNE, NY 11565-1347

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	543 CORNWELL AVE, MALVERNE, NY 11565-1347

Tax Assessment & Valuation

The 2025 property tax bill for 549 Cornwell Ave was $12,662.

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	Malverne Village
Elementary School District	Valley Stream Union Free School District 13 (PK - 06)
Secondary School District	Valley Stream Central High School District (07 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$644 (-6.67%) Land $272 Building $372	$644,000 (-10.06%)
2025	$12,662.00	$690 Land $302 Building $388	$716,000
2023	$9,252.00 Disabled Person's exemption Veteran's exemption	$645 Land $337 Building $308	$645,000

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

FEMA maps place 549 Cornwell Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2023.

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	4 in force
Nearby Flood Claims	1 (2023)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Sep 2023 · Severe Storm And Flooding

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

The area around 549 Cornwell 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	LIBERTY UTILITIES NEW YORK - LYNBROOK private · serves 220,000 people · EPA ID NY2902835
Water Source	Groundwater
Last State Inspection	Jul 2023
Lead	5 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Corrosion control Jul 2025
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 794 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
T-Mobile Fixed Wireless	100 / 20