378 Madison St, West Islip, NY 11795 Property Records

Suffolk County and Southampton Town property record for 378 Madison St, West Islip, NY 11795

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,546 sqft · built 1992
Lot Size0.46 acres (20,038 sqft)
Owner2 Individual Names on Record
Tax Bill$2,618 (2024)
Flood ZoneZone X (minimal risk)
APN0903-007.00-02.00-018.000

Property Details

APN / Parcel Number

Primary APN0903-007.00-02.00-018.000
Alternative APNs
  • 473609 007.000-0002-018.000
  • 360900700000020180000000
  • 473600100700

Interior

Bedrooms3 Beds
Full Baths2 Baths
Stories2 Stories
Building Area1,546 sqft Living Area
1st Floor Area1,546 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1992
Effective Year BuiltEffective 1992
Architectural StyleMobile Home
Exterior MaterialWood
Lot Area20,038 sqft (0.46 acres)
View / LotBelow Average

Exterior Amenities

PorchOpen Porch
Porch Area720 sqft
Patio Area820 sqft
Shed1 Shed

Utilities, Heating & Cooling

Heating SystemHot Water
Heating FuelOil
SewerConnected

Location & Zoning

Street Address378 MADISON ST
CityWEST ISLIP
StateNY
Zip11795
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeVILLA
Legal Description1987 LD EQ + 120089 PL/D+900
Legal Block2
Legal Lot Number18
JurisdictionSUFFOLK NY
Township / Civil DivisionSOUTHAMPTON
Census Block Group2
Census Block2017
Census Tract190708

Owner

Source: Suffolk County and Southampton 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 AddressSUFFOLK ST EXT, SAG HARBOR, NY 11963
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionSouthampton Town
MunicipalitySag Harbor Village
Unified School DistrictSag Harbor Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$942,600 (-) Land $696,600 Building $246,000$1,496,190 (-) Land $1,105,714 Building $390,476
2024$2,618.00 (-89.41%)$1,496,190 (+10.32%) Land $1,105,714 Building $390,476
2023$942,600 Land $696,600 Building $246,000$1,356,259 Land $1,002,302 Building $353,957
2020$24,722.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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
Flood Insurance CostPremium on Record
median of 37 policies
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies37 in force
Nearby Flood Claims86 (1978–2024)
Claims Outside the SFHA14 of 86
Most Recent ClaimAug 2024 · Severe Storm And Flooding
Claims by Event
  • Hurricane Sandy, Oct 2012 · 25 claims
  • Coastal Storm, High Tides, Heavy Rain, & Flooding, Dec 1992 · 12 claims
  • Coastal Storms & Flooding, Mar 1984 · 5 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

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 94% of the US · lower than 91% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureDirect
burnable vegetation

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

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

May also be available: T-Mobile, Verizon.

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