Suffolk County and Brookhaven Town property record for 21 Triangle Dr, Setauket, NY 11733
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,248 sqft · built 1966 |
| Lot Size | 0.28 acres (12,197 sqft) |
| Owner | Company Name on File |
| Tax Bill | $11,901 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0200-109.00-04.00-005.000 |
| Primary APN | 0200-109.00-04.00-005.000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,248 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 1966 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Lot Area | 12,197 sqft (0.28 acres) |
| View / Lot | Waterfront |
| Garage Type | Basement |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|
| Account Number | 434590 |
|---|---|
| Street Address | 21 TRIANGLE DR |
| City | SETAUKET |
| State | NY |
| Zip | 11733-1431 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | DAWN ESTS 1658 3 13 S 50 FT 14 EXC |
| Legal Subdivision | DAWN ESTATES |
| Legal Block | 9000 |
| Legal Lot Number | 400 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | BROOKHAVEN |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 158016 |
Source: Suffolk County and Brookhaven Town assessment roll, 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 | Company Name on File |
|---|---|
| Mailing Address | 21 TRIANGLE DR, SETAUKET, NY 11733-1431 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Feb 27, 2014 |
| Transfer Doc | 0127710969 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Brookhaven Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Brookhaven Town |
| Unified School District | Three Village Central School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,850 (-) Land $300 Building $3,550 | $802,083 (+11,149.41%) Land $56,604 Building $669,811 | |
| 2024 | $11,901.00 | ||
| 2023 | $3,850 Land $300 Building $3,550 | $7,130 Land $556 Building $6,574 |
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 |
| Nearby Flood Policies | 8 in force |
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 | 0.02% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2024 |
| Lead | 1 ppb (2025–2027) action level 15 ppb |
| Water Quality | Asbestos resolved · Jul 2020 |
|---|---|
| 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 173 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Communications Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures