20 Whitebirch Ln, Commack, NY 11725 Property Records

Suffolk County and Smithtown Town property record for 20 Whitebirch Ln, Commack, NY 11725

Property Summary

Property TypeSingle Family Home
Lot Size0.26 acres (11,326 sqft)
Owner2 Individual Names on File
Last Sale$435,000 (Dec 2005)
Tax Bill$13,709 (2024)
Flood ZoneZone X (minimal risk)
APN473489 91.-2-20

Property Details

APN / Parcel Number

Primary APN473489 91.-2-20
Alternative APNs
  • 0800-091.00-02.00-020.000
  • 348909100000020200000000
  • 47340021961

Exterior

Lot Area11,326 sqft (0.26 acres)

Location & Zoning

Street Address20 WHITEBIRCH LN
CityCOMMACK
StateNY
Zip11725-2328
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal Description12-476851 TC-52 *2480 LOT 176 MAYFAIR EST SEC D
Legal SubdivisionMAYFAIR ESTATES
Legal Block2
Legal Lot Number20
JurisdictionSUFFOLK NY
Township / Civil DivisionSMITHTOWN
Census Block Group1
Census Block1011
Census Tract135102

Owner

20 Whitebirch Ln is owned and occupied by two individuals who acquired it in May 2011.

Source: Suffolk County and Smithtown Town records, as of August 11, 2026

Owner of Record2 Individual Names on File
Mailing Address20 WHITEBIRCH LN, COMMACK, NY 11725-2328
OccupancyOwner Occupied
Owner TypeIndividual

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 Names2 Names on Deed
Last SaleDec 19, 2005 · Amount on File
Deed SaleDec 19, 2005 · Amount on File
Deed Book / Page12426 / 171
Last Transfer DateMay 25, 2011
Transfer Doc0126640613
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Suffolk County and Smithtown Town assessment roll, as of August 11, 2026

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionSmithtown Town
Unified School DistrictCommack Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$5,150 Land $300 Building $4,850$643,750 Land $37,500 Building $606,250
2024$13,709.00
2023$5,150 Land $300 Building $4,850$5,920 Land $345 Building $5,575

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 20 Whitebirch Ln in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1979.

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies3 in force
Nearby Flood Claims5 (1979–2010)
Claims Outside the SFHA5 of 5
Most Recent ClaimMar 2010 · Severe Storms 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 20 Whitebirch Ln 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 RiskNot 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 SystemSUFFOLK COUNTY WATER AUTHORITY
serves 1,100,000 people · EPA ID NY5110526
Water SourceGroundwater
Last State InspectionJan 2024
Lead1 ppb (2025–2027)
action level 15 ppb

Violations Reported to EPA

Water QualityAsbestos
resolved · Jul 2020
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 331 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber
980 / 880

May also be available: T-Mobile.

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