Suffolk County and Riverhead Town property record for 857 Ostrander Ave, Riverhead, NY 11901
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,404 sqft · built 1964 |
| Lot Size | 0.44 acres (19,166 sqft) |
| Owner | Company Name on File |
| Last Sale | $112,000 (Oct 1999) |
| Tax Bill | $1,207 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 473000 107.-3-27 |
| Primary APN | 473000 107.-3-27 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,404 sqft Living Area |
| 1st Floor Area | 1,040 sqft |
| Basement Area | 364 sqft |
| Finished Basement | 364 sqft |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Raised Ranch |
| Exterior Material | Wood |
| Lot Area | 19,166 sqft (0.44 acres) |
| Lot Dimensions | 250 ft deep x 76 ft wide |
| View / Lot | Waterfront |
| Garage Type | Basement |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Water Source | Commercial |
| Account Number | 04 |
|---|---|
| Street Address | 857 OSTRANDER AVE |
| City | RIVERHEAD |
| State | NY |
| Zip | 11901-2617 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 03 |
| Legal Description | *1231 PCL ADJN ON WMERITSN25OFL11&S50OFL12BLK A&864 0000 3 |
| Legal Block | 3 |
| Legal Lot Number | 27 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | RIVERHEAD |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 169800 |
857 Ostrander Ave is owned by a company that bought it in October 1999.
Source: Suffolk County and Riverhead Town records, as of August 11, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1401 MAIN ST, PORT JEFFERSON, NY 11777-2225 |
| Owner Type | Company |
| Vesting | Company |
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 | Oct 29, 1999 · Amount on File |
| Deed Sale | Oct 29, 1999 · Amount on File |
| Deed Book / Page | 11997 / 787 |
| 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 | $42,000 Land $13,900 Building $28,100 | $514,706 Land $170,343 Building $344,363 | |
| 2024 | $1,207.00 | ||
| 2023 | $42,000 Land $13,900 Building $28,100 | $452,099 Land $149,623 Building $302,476 |
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 857 Ostrander Ave in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1979.
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 17 policies |
| Nearby Flood Policies | 17 in force |
| Nearby Flood Claims | 4 (1979–2005) |
| Claims Outside the SFHA | 3 of 4 |
| Most Recent Claim | Oct 2005 · rainfall accumulation |
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 857 Ostrander Ave is low, with less than 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 94% of the US · lower than 91% of New York |
|---|---|
| Wildfire Likelihood | Under 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 317 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: Verizon.
5G (outdoors only) and 4G LTE
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