Suffolk County and Southampton Town property record for 354 Madison St, West Islip, NY 11795
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 1 ba · 5,507 sqft · built 2021 |
| Lot Size | 0.92 acres (40,075 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $13,319 (2024) |
| Deeds & Mortgages | Apr 2019 Sale Apr 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 0903-007.00-02.00-021.000 |
| Primary APN | 0903-007.00-02.00-021.000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 5,507 sqft Living Area |
| 1st Floor Area | 5,507 sqft |
| Year Built | Built 2021 |
|---|---|
| Effective Year Built | Effective 2021 |
| Architectural Style | Mobile Home |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 40,075 sqft (0.92 acres) |
| View / Lot | Below Average |
| Pool Area | 1,000 sqft |
|---|---|
| Porch | Porch |
| Porch Area | 35 sqft |
| Patio Area | 2,108 sqft |
| Canopy | 192 sqft |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Sewer | Connected |
| Street Address | 354 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 + 2800 |
| Legal Block | 2 |
| Legal Lot Number | 21 |
| 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 | Company Name on Record |
|---|---|
| Mailing Address | 354 MADISON ST, NY |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Apr 24, 2019 | Grant Deed, Transfer NOT AVAILABLE |
| Apr 20, 2017 | Quit Claim Deed, Transfer BRIDGE ABSTRACT LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Mar 17, 2017 |
| Transfer Doc | 0129090507 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Apr 24, 2019 |
| Property Address | 354 MADISON ST, SAG HARBOR, NY 11963-3442 |
| Document Number | 0130090650 |
| Book / Page | 013009 / 000650 |
| Instrument Date | Apr 5, 2019 |
| Transaction Type | Transfer |
| Record Updated | May 22, 2019 |
| Title Company | NOT AVAILABLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $5,600.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 203 BROOKVILLE RD GLEN HEAD NY 115453330, GLEN HEAD, NY 11545-3330 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Apr 20, 2017 |
| Property Address | 354 MADISON ST, SAG HARBOR, NY 11963-3442 |
| Document Number | 0129090507 |
| Book / Page | 012909 / 000507 |
| Instrument Date | Mar 17, 2017 |
| Transaction Type | Transfer |
| Record Updated | Aug 29, 2017 |
| Title Company | BRIDGE ABSTRACT LLC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4472 NOYAC RD SAG HARBOR NY 119632812, SAG HARBOR, NY 11963-2812 |
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 | $4,795,000 (-) Land $752,300 Building $4,042,700 | $7,611,111 (-) Land $1,194,127 Building $6,416,984 | |
| 2024 | $13,319.00 (-29.09%) | $7,611,111 (+10.32%) Land $1,194,127 Building $6,416,984 | |
| 2023 | $4,795,000 Land $752,300 Building $4,042,700 | $6,899,281 Land $1,082,446 Building $5,816,835 | |
| 2020 | $18,783.00 |
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 80% of the US · above 54% of New York |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 305 locations within half a mile, as of December 31, 2025
| Provider | Max 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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