20 Casey Ln, Mount Sinai, NY 11766 Property Records

Suffolk County and Brookhaven Town property record for 20 Casey Ln, Mount Sinai, NY 11766

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 2,714 sqft · built 1994
Lot Size0.9 acres (39,204 sqft)
OwnerIndividual Name on Record
Last Sale$449,000 (Apr 2001)
Tax Bill$19,543 (2024)
Flood ZoneZone X (minimal risk)
APN0200-185.00-03.00-035.009

Property Details

APN / Parcel Number

Primary APN0200-185.00-03.00-035.009
Alternative APNs
  • 472289 185.00-03-035.009
  • 228918500000030350090000
  • 00001122309
  • 0001122309
  • 1122309

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories2 Stories
Building Area2,714 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1994
Effective Year BuiltEffective 1994
Architectural StyleColonial
Exterior MaterialAluminum/Vinyl
Lot Area39,204 sqft (0.9 acres)
View / LotWaterfront

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account Number1122309
Street Address20 CASEY LN
CityMOUNT SINAI
StateNY
Zip11766-2353
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionKNOLLS @ PANFIELD 8397 SEC 1 9
Legal SubdivisionKNOLLS @ PANFIELD
Legal Block5000
Legal Lot Number300
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group1
Census Block1005
Census Tract158306

Owner

Source: Suffolk County and Brookhaven 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 RecordIndividual Name on Record
Mailing Address20 CASEY LN, MOUNT SINAI, NY 11766-2353
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleApr 12, 2001 · Amount on Record
Deed SaleApr 12, 2001 · Amount on Record
Prior SaleSep 2, 1994 · Amount on Record
Deed Book / Page12112 / 959
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionBrookhaven Town
Unified School DistrictMount Sinai Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$4,800 (-) Land $500 Building $4,300$1,000,000 (+11,149.86%) Land $94,340 Building $811,321
2024$19,543.00
2023$4,800 Land $500 Building $4,300$8,889 Land $926 Building $7,963

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 Policies4 in force
Nearby Flood Claims5 (1979–1985)
Claims Outside the SFHA5 of 5
Most Recent ClaimSep 1985 · Hurricane Gloria

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 RiskLow
lower than 96% of the US · lower than 95% 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 197 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
980 / 880
Starlink
Satellite
280 / 30

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