Suffolk County and Riverhead Town property record for 400 Union Ave, Riverhead, NY 11901 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,606 sqft · built 1920 |
| Lot Size | 0.14 acres (6,098 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $6,331 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 473000 127.-1-25 |
| Primary APN | 473000 127.-1-25 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,606 sqft Living Area |
| Gross Area | 1,654 sqft |
| 1st Floor Area | 1,030 sqft |
| 2nd Floor Area | 576 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | Colonial |
| Exterior Material | Composition/Composite |
| Lot Area | 6,098 sqft (0.14 acres) |
| Lot Dimensions | 96 ft deep x 64 ft wide |
| View / Lot | Canal |
| Porch | Covered Porch |
| Porch Area | 48 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Water Source | Commercial |
| Account Number | 04 |
|---|---|
| Street Address | 400 UNION AVE |
| City | RIVERHEAD |
| State | NY |
| Zip | 11901-4646 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 768 WD UNION AV&13RR&L21MDW BNJMN NLY PT L20 5 |
| Legal Block | 1 |
| Legal Lot Number | 25 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | RIVERHEAD |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 169800 |
Source: Suffolk County and Riverhead Town records · APN 473000 127.-1-25
Assessment roll updated August 11, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 400 UNION AVE, RIVERHEAD, NY 11901-4646 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Dec 20, 2002 |
| Transfer Doc | 0122290221 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Riverhead Town records · Assessment roll updated August 11, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Riverhead Town |
| Unified School District | Riverhead Central School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $33,100 (-) Land $5,700 Building $27,400 | $405,637 (+13.85%) Land $69,853 Building $335,784 | |
| 2024 | $6,331.00 | ||
| 2023 | $33,100 Land $5,700 Building $27,400 | $356,297 Land $61,356 Building $294,941 |
Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 361031698004, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 22 individual NFIP policies nearby |
| 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 Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 244 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Optimum Communications | Fiber | 8,000 / 8,000 |
| Optimum Communications | Cable | 940 / 35 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Verizon, T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.
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