Suffolk County and Southampton Town property record for 11 Mill Rd, Riverhead, NY 11901 · Last verified August 2026
| Property Type | Public Works > Public School (Administration, Campus, Dorns, Instruction) |
|---|---|
| Year Built | Built 1996 |
| Square Footage | 15,084 sqft Gross Area |
| Lot Size | 10.2 acres |
Source: Suffolk County and Southampton Town records · APN 0900-368.00-04.00-072.000
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 | Company Name on File |
|---|---|
| Mailing Address | PO BOX 900, REMSENBURG, NY 11960-0900 |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Refreshed | Sep 20, 2026 |
Source: Suffolk County and Southampton Town records · Assessment roll updated August 11, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Southampton Town |
| Unified School District | Remsenburg-Speonk Union Free School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $16,726,500 (-) Land $1,178,700 Building $15,547,800 | |
| 2024 | $26,550,000 (+10.32%) Land $1,870,952 Building $24,679,048 | |
| 2023 | $16,726,500 Land $1,178,700 Building $15,547,800 | $24,066,906 Land $1,695,971 Building $22,370,935 |
Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| 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; lenders make the official flood determination.
| Primary APN | 0900-368.00-04.00-072.000 |
|---|---|
| Alternative APNs |
|
| Building Area | 15,084 sqft Gross Area |
|---|
| Year Built | Built 1996 |
|---|---|
| Effective Year Built | Effective 1996 |
| Lot Area | 446,490 sqft |
| Total Buildings | 2 Total Buildings |
| View | Inferior View |
| Sewage | Sewage Connected |
|---|---|
| Water Source | Yes (Unknown Type) Water Source |
| Street Address | 11 MILL RD |
|---|---|
| City | RIVERHEAD |
| State | NY |
| Zip | 11901 |
| Property Usage | Land which may be one of the following: Public spaces (i.e. parks and beaches), public buildings (i.e. schools, hospitals, courthouse), public services (i.e. water treatment, electrical grid/product, dams) Property Usage |
| Type | Public Works > Public School (Administration, Campus, Dorns, Instruction) |
| Legal Description | BLD IMP +8000/LD EQ -8000 |
| Legal Block | 4 |
| Legal Lot Number | 72 |
| Jurisdiction | SUFFOLK NY |
| Minor Civil Division | SOUTHAMPTON |
| Census Blockgroup | 3 |
| Census Block | 3004 |
| Census Tract | 190503 |
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