Suffolk County and Riverhead Town property record for 317 Osborn Ave, Riverhead, NY 11901
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,601 sqft · built 1895 |
| Lot Size | 0.12 acres (5,227 sqft) |
| Owner | Individual Name on File |
| Last Sale | $181,000 (May 2011) |
| Tax Bill | $7,145 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 473000 128.-1-19 |
| Primary APN | 473000 128.-1-19 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,601 sqft Living Area |
| Gross Area | 1,804 sqft |
| 1st Floor Area | 1,137 sqft |
| 2nd Floor Area | 464 sqft |
| Year Built | Built 1895 |
|---|---|
| Effective Year Built | Effective 1895 |
| Architectural Style | Old Style |
| Exterior Material | Wood |
| Foundation Type | No Foundation |
| Lot Area | 5,227 sqft (0.12 acres) |
| View / Lot | Canal |
| Garage Type | Detached |
| Garage Area | 288 sqft |
| Porch | Screened Porch |
| Porch Area | 203 sqft |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Oil |
| Water Source | Commercial |
| Account Number | 04 |
|---|---|
| Street Address | 317 OSBORN AVE |
| City | RIVERHEAD |
| State | NY |
| Zip | 11901-3053 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 08 |
| Legal Description | 27 0000 3 |
| Legal Block | 1 |
| Legal Lot Number | 19 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | RIVERHEAD |
| Census Block Group | 4 |
| Census Block | 4014 |
| Census Tract | 169800 |
317 Osborn Ave is owned and occupied by an individual who bought it in May 2011.
Source: Suffolk County and Riverhead Town records, as of August 11, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 7470 SOUND AVE, MATTITUCK, NY 11952-3134 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 27, 2011 · Amount on File |
| Deed Sale | May 27, 2011 · Amount on File |
| Deed Book / Page | 12661 / 192 |
| Prior Transfer Date | Nov 9, 1993 |
| Prior Transfer Doc | 1165000090 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Riverhead Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Riverhead Town |
| Unified School District | Riverhead Central School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $32,100 Land $5,600 Building $26,500 | $393,382 Land $68,627 Building $324,755 | |
| 2024 | $7,145.00 | ||
| 2023 | $32,100 Land $5,600 Building $26,500 | $345,533 Land $60,280 Building $285,253 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 317 Osborn Ave in Zone X, an area of minimal flood risk, though there have been 46 flood claims nearby since 1978.
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 File median of 22 policies |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 46 (1978–2020) |
| Claims Outside the SFHA | 21 of 46 |
| Most Recent Claim | Apr 2020 · other causes |
| 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.
Wildfire risk around 317 Osborn Ave is low, with a 0.01% annual chance of wildfire.
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 | None beyond ember reach |
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 | RIVERHEAD WATER DISTRICT serves 35,000 people · EPA ID NY5103705 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2025 |
| Lead | 2 ppb (2025–2027) action level 15 ppb |
| Water Quality | Nitrite resolved · Jul 2023 |
|---|---|
| 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 171 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 |
May also be available: T-Mobile.
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