306 Madison St, Sag Harbor, NY 11963 Property Records

Suffolk County and Southampton Town property record for 306 Madison St, Sag Harbor, NY 11963

Property Summary

Property TypeSingle Family Home
Details3 bd · 1 ba · 912 sqft · built 1994
Lot Size0.15 acres (6,534 sqft)
OwnerCompany Name on Record
Last Sale$1,600,000 (Oct 2023)
Tax Bill$2,425 (2024)
Deeds & MortgagesOct 2023 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN0903-007.00-02.00-029.000

Property Details

APN / Parcel Number

Primary APN0903-007.00-02.00-029.000
Alternative APNs
  • 473609 007.000-0002-029.000
  • 360900700000020290000000
  • 473600100820

Interior

Bedrooms3 Beds
Full Baths1 Bath
Stories1 Story
Building Area912 sqft Living Area
1st Floor Area912 sqft

Exterior

Year BuiltBuilt 1994
Effective Year BuiltEffective 1994
Architectural StyleMobile Home
Exterior MaterialAluminum/Vinyl
Lot Area6,534 sqft (0.15 acres)
View / LotBelow Average
PorchPorch
Porch Area86 sqft
Shed1 Shed

Utilities, Heating & Cooling

Heating SystemHot Water
Heating FuelOil
SewerConnected
Water SourceCommercial

Location & Zoning

Street Address306 MADISON ST
CitySAG HARBOR
StateNY
Zip11963-3438
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeVILLA
Legal Description1987 LD EQ + 600
Legal Block2
Legal Lot Number29
JurisdictionSUFFOLK NY
Township / Civil DivisionSOUTHAMPTON
Census Block Group2
Census Block2017
Census Tract190708

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic DistrictWithin the Sag Harbor Village District (Boundary Increase)
listed 1994 · 882 contributing resources · NRIS 94000400

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

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 RecordCompany Name on Record
Mailing Address623 CHAMPIONSHIP BLVD, FRANKLIN, TN 37064
Owner TypeCompany
VestingLimited Liability Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleOct 12, 2023 · Amount on Record
Deed SaleOct 12, 2023 · Amount on Record
Prior SaleDec 1, 2015 · Amount on Record
Deed Book / Page13222 / 134
Record UpdatedSep 20, 2026

October 2023: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateOct 12, 2023
Property Address306 MADISON ST, SAG HARBOR, NY 11963-3438
Document Number0132220134
Book / Page13222 / 134
Instrument DateAug 31, 2023
Transaction TypeTransfer
Record UpdatedApr 3, 2026

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address623 CHAMPIONSHIP BLVD, FRANKLIN, TN 37064

Mortgage

Document Number0002354222
DateOct 12, 2023
Instrument23542/22
Lender
NameINVESTOR MTG FIN LLC
Agreement
TypeStand-Alone First Mortgage
AmountAmount Recorded
Term349 Months
DueNov 1, 2052

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$873,000 (-) Land $738,800 Building $134,200$1,385,714 (-) Land $1,172,698 Building $213,016
2024$2,425.00 (-80.24%)$1,385,714 (+10.32%) Land $1,172,698 Building $213,016
2023$873,000 Land $738,800 Building $134,200$1,256,116 Land $1,063,022 Building $193,094
2020$12,271.00

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 80% of the US · above 54% of New York
Wildfire Likelihood0.01% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fixed Wireless
300 / 20
Starlink
Satellite
280 / 30
T-Mobile
Fixed Wireless
100 / 20

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