21 Seneca Dr, Commack, NY 11725 Property Records

Suffolk County and Smithtown Town property record for 21 Seneca Dr, Commack, NY 11725

Property Summary

Property TypeSingle Family Home
Details4 bd · 1.5 ba · 1,931 sqft · built 1959
Lot Size0.25 acres (10,890 sqft)
Owner2 Individual Names on Record
Last Sale$445,000 (Sep 2008)
Tax Bill$13,027 (2024)
Deeds & MortgagesMar 2022 Refinance
Apr 2018 Refinance
Flood ZoneZone X (minimal risk)
APN473489 118.-2-20

Property Details

APN / Parcel Number

Primary APN473489 118.-2-20
Alternative APNs
  • 0800-118.00-02.00-020.000
  • 348911800000020200000000
  • 47340027747

Interior

Bedrooms4 Beds
Full Baths1.5 Baths
Half Baths1 Half Bath
Stories2 Stories
Building Area1,931 sqft Living Area
Gross Area2,127 sqft
1st Floor Area1,156 sqft
2nd Floor Area775 sqft

Exterior

Year BuiltBuilt 1959
Effective Year BuiltEffective 1959
Architectural StyleColonial
Exterior MaterialAluminum/Vinyl
Lot Area10,890 sqft (0.25 acres)

Exterior Amenities

PorchScreened Porch
Porch Area196 sqft
Shed1 Shed
Shed Area80 sqft

Utilities, Heating & Cooling

Heating SystemHVAC

Location & Zoning

Street Address21 SENECA DR
CityCOMMACK
StateNY
Zip11725-4611
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal Description14-551176 TC-52 *2807 LOT 25 PARKVIEW ESTS SEC 1
Legal Block2
Legal Lot Number20
JurisdictionSUFFOLK NY
Township / Civil DivisionSMITHTOWN
Census Block Group1
Census Block1005
Census Tract135208

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on Record
Mailing Address21 SENECA DR, COMMACK, NY 11725-4611
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Mar 29, 2022Deed of Trust, Mortgage · Stand-Alone Refinance
BANK OF AMERICA NA
Apr 30, 2018Deed of Trust, Mortgage · Stand-Alone Refinance
BANK OF AMERICA NA

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleSep 19, 2008 · Amount on Record
Deed SaleSep 19, 2008 · Amount on Record
Deed Book / Page12565 / 564
Record UpdatedSep 20, 2026

March 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address21 SENECA DR, COMMACK, NY 11725-4611
Transaction TypeMortgage
Record UpdatedJun 21, 2022

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0233980410
DateMar 29, 2022
Book Page23398/410
InstrumentDM074314
Lender
NameBANK OF AMERICA NA
TypeBank
Agreement
TypeStand-Alone Refinance
AmountAmount Recorded
Term241 Months
DueApr 1, 2042

April 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address21 SENECA DR, COMMACK, NY 11725-4611
Transaction TypeMortgage
Record UpdatedFeb 5, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0229210272
DateApr 30, 2018
Book Page22921/272
Instrument18-0078421
Lender
NameBANK OF AMERICA NA
TypeBank
Agreement
TypeStand-Alone Refinance
AmountAmount Recorded

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$5,375 (-) Land $300 Building $5,075$671,875 (+10,775.28%) Land $37,500 Building $634,375
2024$13,027.00
2023$5,375 Land $300 Building $5,075$6,178 Land $345 Building $5,833

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

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 Policies2 in force
Nearby Flood Claims1 (2011)
Claims Outside the SFHA1 of 1
Most Recent ClaimAug 2011 · Hurricane Irene

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

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 366 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber
2,300 / 2,300
T-Mobile
Fixed Wireless
100 / 20

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