3430 Mill Rd, Mattituck, NY 11952 Property Records

Suffolk County and Southold Town property record for 3430 Mill Rd, Mattituck, NY 11952

Property Summary

Property TypeMarina, Boat Slips, Yacht Club, Boat Landing
Lot Size32.6 acres (1,420,056 sqft)
OwnerCompany Name on File
Last Sale$4,600,000 (Oct 2016)
Tax Bill$77,740 (2024)
Flood ZoneZone X (minimal risk)
APN473889 106.-6-13.4

Property Details

APN / Parcel Number

Primary APN473889 106.-6-13.4
Alternative APNs
  • 1000-106.00-06.00-013.004
  • 47380013209
  • 14

Exterior

Lot Area1,420,056 sqft
View / LotWaterfront

Location & Zoning

Account Number14
Street Address3430 MILL RD
CityMATTITUCK
StateNY
Zip11952
Property CategoryPublic Works
Property TypePublic Works > Marina, Boat Slips, Yacht Club, Boat Landing
Local Zoning CodeMII R-80
Legal DescriptionBOOK 12359 PAGE 240 BILL 012720
Legal Block6
Legal Lot Number13
JurisdictionSUFFOLK NY
Township / Civil DivisionSOUTHOLD
Census Block Group1
Census Block1001
Census Tract170003

Owner

Source: Suffolk County and Southold Town records · APN 473889 106.-6-13.4

Assessment roll updated August 11, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordCompany Name on File
Mailing Address5780 W MILL RD, MATTITUCK, NY 11952-2078
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleOct 18, 2016 · Amount on Record
Deed SaleOct 18, 2016 · Amount on Record
Deed Book / PageD00012884 / 130
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Suffolk County and Southold Town records · Assessment roll updated August 11, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionSouthold Town
Unified School DistrictMattituck-Cutchogue Union Free School District (PK - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

YearTax BillAssessed ValueAssessed Market Value
2025$49,680 (-) Land $37,490 Building $12,190$9,032,727 (+10,263.62%) Land $6,816,364 Building $2,216,364
2024$77,740.00
2023$49,680 Land $37,490 Building $12,190$87,158 Land $65,772 Building $21,386

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 18, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 23 policies
Nearby Flood Policies23 in force
Nearby Flood Claims1 (2012)
Most Recent ClaimOct 2012 · Hurricane Sandy

Wildfire

Wildfire RiskLow
lower than 80% of the US · above 54% of New York
Wildfire Likelihood0.02% annual chance
ExposureDirect
burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

Based on FCC filings for 58 locations within half a mile of this property.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Mill Rd

Nearby Streets

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