Suffolk County and Southampton Town property record for 366 Madison St, West Islip, NY 11795
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,861 sqft · built 1991 |
| Lot Size | 0.55 acres (23,958 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $2,400 (2024) |
| Deeds & Mortgages | Jul 2025 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 0903-007.00-02.00-019.000 |
| Primary APN | 0903-007.00-02.00-019.000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 2 Stories |
| Building Area | 2,861 sqft Living Area |
| 1st Floor Area | 2,861 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Architectural Style | Mobile Home |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 23,958 sqft (0.55 acres) |
| View / Lot | Below Average |
| Porch | Porch |
| Porch Area | 104 sqft |
| Shed | 1 Shed |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Sewer | Connected |
| Street Address | 366 MADISON ST |
|---|---|
| City | WEST ISLIP |
| State | NY |
| Zip | 11795 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | VILLA |
| Legal Description | 1987 LD EQ + 1500 |
| Legal Block | 2 |
| Legal Lot Number | 19 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | SOUTHAMPTON |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 190708 |
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 Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 366 MADISON ST, SAG HARBOR, NY 11963-3421 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Jun 18, 2025 |
| Transfer Doc | 0133000806 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Jul 9, 2025 |
| Property Address | 366 MADISON ST, SAG HARBOR, NY 11963-3421 |
| Document Number | 0133000806 |
| Book / Page | 13300 / 806 |
| Instrument Date | Jun 18, 2025 |
| Transaction Type | Transfer |
| Record Updated | Apr 21, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 366 MADISON ST, SAG HARBOR, NY 11963-3421 |
Source: Suffolk County and Southampton Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Southampton Town |
| Municipality | Sag Harbor Village |
| Unified School District | Sag Harbor Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,024,300 (-) Land $705,700 Building $318,600 | $1,625,873 (-) Land $1,120,159 Building $505,714 | |
| 2024 | $2,400.00 (-90.91%) | $1,625,873 (+10.32%) Land $1,120,159 Building $505,714 | |
| 2023 | $1,024,300 Land $705,700 Building $318,600 | $1,473,813 Land $1,015,396 Building $458,417 | |
| 2020 | $26,416.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 37 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 37 in force |
| Nearby Flood Claims | 86 (1978–2024) |
| Claims Outside the SFHA | 14 of 86 |
| Most Recent Claim | Aug 2024 · Severe Storm And Flooding |
| Claims by Event |
|
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 94% of the US · lower than 91% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2024 |
| Lead | 1 ppb (2025–2027) action level 15 ppb |
| Water Quality | Asbestos resolved · Jul 2020 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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.
Source: FCC Broadband Data Collection, based on 158 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
May also be available: T-Mobile, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures