Suffolk County and Brookhaven Town property record for 50 Knapp Rd, Mastic Beach, NY 11951
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.23 acres (10,019 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $4,104 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0200-978.90-09.00-011.000 |
| Primary APN | 0200-978.90-09.00-011.000 |
|---|---|
| Alternative APNs |
|
| Lot Area | 10,019 sqft (0.23 acres) |
|---|---|
| View / Lot | Waterfront |
| Account Number | 4722220 |
|---|---|
| Street Address | 50 KNAPP RD |
| City | MASTIC BEACH |
| State | NY |
| Zip | 11951-2610 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Block | 8900 |
| Legal Lot Number | 900 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | BROOKHAVEN |
| Census Block Group | 1 |
| Census Block | 1023 |
| Census Tract | 159516 |
50 Knapp Rd is owned and occupied by two individuals.
Source: Suffolk County and Brookhaven Town records, as of August 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 50 KNAPP RD, MASTIC BEACH, NY 11951-2610 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | 2 Names on Deed |
|---|---|
| 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 | William Floyd Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,600 Land $200 Building $1,400 | $333,334 Land $37,736 Building $264,151 | |
| 2024 | $4,104.00 | ||
| 2023 | $1,600 Land $200 Building $1,400 | $2,963 Land $370 Building $2,593 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 50 Knapp Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 14 policies |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 1 (2010) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 2010 · Severe Storms And Flooding |
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 50 Knapp Rd 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 99.1% of the US · lower than 99.2% 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 | 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 460 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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