11 Flagg Ave, Montauk, NY 11954 Property Records

Suffolk County and East Hampton Town property record for 11 Flagg Ave, Montauk, NY 11954

Property Summary

Property TypeSingle Family Home
Lot Size0.33 acres (14,375 sqft)
OwnerIndividual Name on Record
Last Sale$1,230,000 (Nov 2015)
Tax Bill$12,244 (2024)
Deeds & MortgagesAug 2022 Mortgage
Flood ZoneZone X (minimal risk)
APN472489 30.-4-3

Property Details

APN / Parcel Number

Primary APN472489 30.-4-3
Alternative APNs
  • 0300-030.00-04.00-003.000
  • 248903000000040030000000
  • 47240068540

Exterior

Lot Area14,375 sqft (0.33 acres)

Location & Zoning

Street Address11 FLAGG AVE
CityMONTAUK
StateNY
Zip11954-5208
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionBLK LOT 90, 91
Legal SubdivisionOCEAN SIDE AT MONTAUK
Legal Block4
Legal Lot Number3
JurisdictionSUFFOLK NY
Township / Civil DivisionEAST HAMPTON
Census Block Group1
Census Block1018
Census Tract201007

Owner

Source: Suffolk County and East Hampton 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 AddressPO BOX 2490
Owner TypeIndividual
VestingJoint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleNov 9, 2015 · Amount on Record
Deed SaleNov 9, 2015 · Amount on Record
Deed Book / Page12840 / 1
Record UpdatedSep 20, 2026

August 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address11 FLAGG AVE, MONTAUK, NY 11954-5208
Transaction TypeMortgage
Record UpdatedDec 5, 2023
Title CompanyMISC COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0234530735
DateAug 31, 2022
Book Page23453/735
Lender
NameDIME COMMUNITY BANK
Agreement
TypeARM
AmountAmount Recorded
Term349 Months
DueSep 1, 2051
Interest
Rate TypeAdjustable Rate
Rate3.5%
Type Change DateAug 1, 2029
Index1-Year CMT

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionEast Hampton Town
Unified School DistrictMontauk Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$10,700 (-) Land $600 Building $10,100$3,343,750 (+10,837.65%) Land $187,500 Building $3,156,250
2024$12,244.00$30,571 (+5.71%) Land $1,714 Building $28,857
2023$10,700 Land $600 Building $10,100$28,919 Land $1,622 Building $27,297

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
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 216 individual policies
Nearby Flood Policies224 units insured
incl. 8 condo units
Nearby Flood Claims14 (2005–2024)
Claims Outside the SFHA5 of 14
Most Recent ClaimJan 2024 · rainfall accumulation
Claims by Event
  • Remnants Of Hurricane Ida, Sep 2021 · 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

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

Wildfire RiskLow
lower than 80% of the US · above 54% of New York
Wildfire Likelihood0.01% 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 446 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Starlink
Satellite
280 / 30

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