379 Locust Ave, Mattituck, NY 11952 Property Records

Suffolk County and Islip Town property record for 379 Locust Ave, Mattituck, NY 11952

Property Summary

Property TypePublic Health Care Facility (Exempt)
Lot Size23.8 acres (1,036,728 sqft)
OwnerIndividual Name on File
Flood ZoneZone X (minimal risk)
APN472889 328.-1-18.1

Property Details

APN / Parcel Number

Primary APN472889 328.-1-18.1
Alternative APNs
  • 0500-328.00-01.00-018.001
  • 288932800000010180010000
  • 472800675110
  • 056061

Exterior

Lot Area1,036,728 sqft

Location & Zoning

Account Number056061
Street Address379 LOCUST AVE
CityMATTITUCK
StateNY
Zip11952
Property CategoryPublic Works
Property TypePublic Works > Public Health Care Facility (Exempt)
Local Zoning CodeAAA
Legal DescriptionX2246420Y190497 N048N00000000
Legal Block8000
Legal Lot Number100
JurisdictionSUFFOLK NY
Township / Civil DivisionISLIP
Census Block Group1
Census Block1024
Census Tract147701

Owner

379 Locust Ave, a public works property, is owned by an individual.

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

Owner of RecordIndividual Name on File
Mailing Address201 SUNRISE HWY, PATCHOGUE, NY 11772
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 NamesName on Deed
Record UpdatedSep 20, 2026

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 DistrictConnetquot Central School District (PK - 12)

Tax Bill & Assessment History

YearAssessed ValueAssessed Market Value
2025$3,698,400 Land $428,400 Building $3,270,000
2024$52,090,141 (+2.54%) Land $6,033,803 Building $46,056,338
2023$3,698,400 Land $428,400 Building $3,270,000$50,802,197 Land $5,884,615 Building $44,917,582

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

Flood

FEMA maps place 379 Locust Ave in Zone X, an area of minimal flood risk, though there have been 9 flood claims nearby since 1979.

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
Nearby Flood Policies10 in force
Nearby Flood Claims9 (1979–2012)
Claims Outside the SFHA7 of 9
Most Recent ClaimOct 2012 · Hurricane Sandy
Claims by Event
  • Hurricane Sandy, Oct 2012 · 2 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 379 Locust 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 98% of the US · lower than 97.9% 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 251 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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