Westchester County and Mamaroneck Town property record for 128 Prospect Ave, Mamaroneck, NY 10543
| Property Type | Commercial Vacant Land |
|---|---|
| Lot Size | 0.07 acres (3,049 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $1,880 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 553203 9-13-280 |
| Primary APN | 553203 9-13-280 |
|---|---|
| Alternative APNs |
|
| Units | 5 Units |
|---|
| Lot Area | 3,049 sqft (0.07 acres) |
|---|---|
| Lot Dimensions | 50 ft deep x 56 ft wide |
| Heating Fuel | Oil |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 951895 |
|---|---|
| Street Address | 128 PROSPECT AVE |
| City | MAMARONECK |
| State | NY |
| Zip | 10543-3657 |
| Property Category | Commercial |
| Property Type | Vacant Land > Commercial |
| Local Zoning Code | C2 |
| Legal Block | 280 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MAMARONECK |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 7200 |
Source: Westchester County and Mamaroneck Town records, as of October 21, 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 Record |
|---|---|
| Mailing Address | 136 PROSPECT AVE, MAMARONECK, NY 10543-3617 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Westchester County and Mamaroneck Town assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | Mamaroneck Town |
| Municipality | Mamaroneck Village |
| Unified School District | Mamaroneck Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,880.00 (+944.44%) Additional exemption filed | ||
| 2025 | $180.00 | $290,000 (-) Land $290,000 | $290,000 (-) Land $290,000 |
| 2024 | Additional exemption filed | $290,000 (-) Land $290,000 | $290,000 (-) Land $290,000 |
| 2023 | $290,000 Land $290,000 | $290,000 Land $290,000 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 123 units insured incl. 114 condo units |
| Nearby Flood Claims | 16 (1979–2023) |
| Claims Outside the SFHA | 2 of 16 |
| Most Recent Claim | Sep 2023 · Severe Storm And Flooding |
| 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 | Not rated no burnable land within 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 | WESTCHESTER JOINT WATER WORKS serves 59,629 people · EPA ID NY5903435 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Mar 2025 |
| Lead | 3 ppb (2026–2028) action level 15 ppb |
| Water Quality | Failure to filter currently in violation since Jun 1993 Haloacetic acids resolved · Jul 2019 |
|---|---|
| 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 334 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| T-Mobile Fixed Wireless | 100 / 20 |
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