48 William St, Copiague, NY 11726 Property Records

Suffolk County and Babylon Town property record for 48 William St, Copiague, NY 11726

Property Summary

Property TypeSingle Family Home
Details1 ba · 1,470 sqft · built 1950
Lot Size0.139 acres (6,060 sqft)
Owner2 Individual Names on File
Last Sale$250,000 (Jun 2003)
Tax Bill$8,371 (2024)
Deeds & MortgagesMay 2019 Mortgage
Flood ZoneZone X (minimal risk)
APN472089 179.-4-43

Property Details

APN / Parcel Number

Primary APN472089 179.-4-43
Alternative APNs
  • 0100-179.00-04.00-043.000
  • 208917900000040430000000
  • 472000538450
  • 20222512950
  • 20232512950
  • 20252512950

Interior

Full Baths1 Bath
Building Area1,470 sqft Building Perimeter

Exterior

Year BuiltBuilt 1950
Effective Year BuiltEffective 1950
Lot Area6,060 sqft (0.139 acres)
Lot Dimensions101 ft deep x 60 ft wide

Location & Zoning

Account Number20252512950
Street Address48 WILLIAM ST
CityCOPIAGUE
StateNY
Zip11726-3715
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeC
Legal DescriptionFILED MAP 1731 LO T128
Legal Block4
Legal Lot Number43
JurisdictionSUFFOLK NY
Township / Civil DivisionBABYLON
Census Block Group2
Census Block2010
Census Tract123703

Owner

48 William St is owned and occupied by two individuals who bought it in June 2003.

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

Owner of Record2 Individual Names on File
Mailing Address48 WILLIAM ST, COPIAGUE, NY 11726-3715
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 SaleJun 6, 2003 · Amount on File
Deed SaleJun 6, 2003 · Amount on File
Prior SaleJul 29, 2002 · Amount on File
Deed Book / Page12255 / 17
Record UpdatedSep 20, 2026

May 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address48 WILLIAM ST, COPIAGUE, NY 11726-3715
Document Number0230390558
Instrument DateMay 21, 2019
Transaction TypeMortgage
Record UpdatedMay 20, 2021
Title CompanyNOT AVAILABLE

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address48 WILLIAM ST COPIAGUE NY 117263715, COPIAGUE, NY 11726-3715

Mortgage

Document Number0230390558
DateJul 5, 2019
Book Page023039/000558
Lender
NameQUICKEN LNS
TypeFunding / Finance Company
Address1050 WOODWARD AVE, DETROIT, MI 48226-1906
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term180 Months
DueJul 4, 2034

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$2,640 Land $270 Building $2,370$447,458 (+11,256.8%) Land $45,763 Building $401,695
2024$8,371.00$3,940 (-1.5%) Land $403 Building $3,537
2023$2,640 Land $270 Building $2,370$4,000 Land $409 Building $3,591

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 48 William St in Zone X, an area of minimal flood risk.

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
Flood Insurance CostPremium on File
median of 10 policies
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies10 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 48 William St 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 RiskLow
lower than 99.1% of the US · lower than 99.2% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
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 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 659 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber · Fixed Wireless in parts of the area
2,300 / 2,300

May also be available: T-Mobile.

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