19 21st Ave, Bay Shore, NY 11706 Property Records

Suffolk County and Islip Town property record for 19 21st Ave, Bay Shore, NY 11706

Property Summary

Property TypeSingle Family Home
Lot Size0.27 acres (11,761 sqft)
Owner2 Individual Names on File
Last Sale$575,000 (Sep 2024)
Tax Bill$8,057 (2024)
Deeds & MortgagesJul 2019 Refinance
Flood ZoneZone X (minimal risk)
APN472889 246.-2-78

Property Details

APN / Parcel Number

Primary APN472889 246.-2-78
Alternative APNs
  • 0500-246.00-02.00-078.000
  • 288924600000020780000000
  • 472800499570
  • 228900

Exterior

Lot Area11,761 sqft (0.27 acres)
Lot Dimensions158 ft deep x 75 ft wide

Location & Zoning

Account Number228900
Street Address19 21ST AVE
CityBAY SHORE
StateNY
Zip11706-3112
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeB
Legal DescriptionX2208264Y193171 T018H00000000
Legal SubdivisionMAP BAY SHORE HEIGHTS
Legal Block6000
Legal Lot Number200
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group1
Census Block1010
Census Tract146002

Owner

19 21st Ave is owned and occupied by two individuals who bought it in September 2024.

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

Owner of Record2 Individual Names on File
Mailing Address19 21ST AVE, BAY SHORE, NY 11706-3112
OccupancyOwner Occupied
Owner TypeIndividual
VestingJoint Tenants with Right of Survivorship

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 SaleSep 19, 2024 · Amount on File
Deed SaleSep 19, 2024 · Amount on File
Prior SaleJul 9, 2004 · Amount on File
Deed Book / Page13265 / 301
Prior Transfer DateJul 1, 2004
Record UpdatedSep 20, 2026

July 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address19 21ST AVE, BAY SHORE, NY 11706-3112
Transaction TypeMortgage
Record UpdatedFeb 5, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0230410718
DateJul 12, 2019
Book Page23041/718
Lender
NameHEMPSTEAD TOWN OF
Agreement
TypeStand-Alone Refinance
AmountAmount on Record
Term229 Months
DueAug 1, 2038

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$35,000 Land $7,000 Building $28,000$492,958 (-) Land $98,592 Building $394,366
2024$8,057.00$492,958 (+2.54%) Land $98,592 Building $394,366
2023$35,000 Land $7,000 Building $28,000$480,769 Land $96,154 Building $384,615

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 19 21st Ave in Zone X, an area of minimal flood risk, though there have been 8 flood claims nearby since 1991.

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 Policies5 in force
Nearby Flood Claims8 (1991–2012)
Most Recent ClaimOct 2012 · Hurricane Sandy
Claims by Event
  • Hurricane Sandy, Oct 2012 · 4 claims

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 19 21st Ave 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 99.8% of the US · lower than 99.9% 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 415 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

May also be available: T-Mobile.

Nearby Properties on 21st Ave

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