Suffolk County and Riverhead Town property record for 439 Ostrander Ave, Riverhead, NY 11901
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,653 sqft · built 1938 |
| Lot Size | 0.4 acres (17,424 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $8,509 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 473000 127.-1-9 |
| Primary APN | 473000 127.-1-9 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,653 sqft Living Area |
| Gross Area | 2,533 sqft |
| 1st Floor Area | 879 sqft |
| 2nd Floor Area | 774 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Architectural Style | Old Style |
| Exterior Material | Composition/Composite |
| Lot Area | 17,424 sqft (0.4 acres) |
| Lot Dimensions | 219 ft deep x 80 ft wide |
| View / Lot | Canal |
| Garage Type | Detached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Screened Porch |
| Porch Area | 968 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Water Source | Commercial |
| Account Number | 04 |
|---|---|
| Street Address | 439 OSTRANDER AVE |
| City | RIVERHEAD |
| State | NY |
| Zip | 11901-4613 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 03 |
| Legal Description | *391 OSTRANDER ESTS S 30FT OF LOT 14& LOT 15 671 0000 3 |
| Legal Block | 1 |
| Legal Lot Number | 9 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | RIVERHEAD |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 169800 |
Source: Suffolk County and Riverhead 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 Individual Names on Record |
|---|---|
| Mailing Address | 439 OSTRANDER AVE, RIVERHEAD, NY 11901-4613 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Jan 11, 1997 |
| Transfer Doc | 1181000592 |
| 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 | $44,000 (-) Land $7,800 Building $36,200 | $539,216 (+13.85%) Land $95,588 Building $443,627 | |
| 2024 | $8,509.00 | ||
| 2023 | $44,000 Land $7,800 Building $36,200 | $473,627 Land $83,961 Building $389,666 |
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 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.
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 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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