Suffolk County and Southampton Town property record for 17 Walnut St, Central Islip, NY 11722
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,000 sqft · built 1991 |
| Lot Size | 0.29 acres (12,632 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $100,000 (Aug 1995) |
| Tax Bill | $11,327 (2020) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0900-005.00-04.00-016.000 |
| Primary APN | 0900-005.00-04.00-016.000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 1,000 sqft Living Area |
| 1st Floor Area | 1,000 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Architectural Style | Mobile Home |
| Exterior Material | Wood |
| Lot Area | 12,632 sqft (0.29 acres) |
| View / Lot | Below Average |
| Patio Area | 252 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Sewer | Connected |
| Street Address | 17 WALNUT ST |
|---|---|
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-4132 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10 |
| Legal Description | BLK L LOT 21-25 |
| Legal Subdivision | PINE NECK PARK |
| Legal Block | 4 |
| Legal Lot Number | 16 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | SOUTHAMPTON |
| Census Block Group | 1 |
| Census Block | 1044 |
| Census Tract | 190711 |
Source: Suffolk County and Southampton Town records, as of July 8, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | PO BOX 1957, NY |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 23, 1995 · Amount on Record |
| Deed Sale | Aug 23, 1995 · Amount on Record |
| Deed Book / Page | 11738 / 572 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Southampton Town assessment roll, as of July 8, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Southampton Town |
| Unified School District | Sag Harbor Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $588,200 (-) Land $443,700 Building $144,500 | ||
| 2024 | $933,651 (+10.32%) Land $704,286 Building $229,365 | ||
| 2023 | $588,200 Land $443,700 Building $144,500 | $846,331 Land $638,417 Building $207,914 | |
| 2020 | $11,327.00 |
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 191 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 191 in force |
| Nearby Flood Claims | 11 (1991–2024) |
| Claims Outside the SFHA | 3 of 11 |
| Most Recent Claim | Apr 2024 · tidal / storm surge |
| 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 395 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
5G (outdoors only) and 4G LTE
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