Westchester County and Mamaroneck Town property record for 321 Fenimore Rd, Mamaroneck, NY 10543
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,659 sqft · built 1911 |
| Lot Size | 0.11 acres (4,792 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $515,000 (Nov 2006) |
| Tax Bill | $15,988 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 553203 9-2-157 |
| Primary APN | 553203 9-2-157 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 2 Stories |
| Building Area | 1,659 sqft Total Area |
| 1st Floor Area | 1,021 sqft |
| 2nd Floor Area | 638 sqft |
| Year Built | Built 1911 |
|---|---|
| Effective Year Built | Effective 1911 |
| Architectural Style | Traditional |
| Exterior Material | Brick |
| Lot Area | 4,792 sqft (0.11 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Type | Carport |
| Garage Area | 360 sqft |
| Carport | Carport |
| Carport Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Slab |
|---|---|
| Porch Area | 120 sqft |
| Patio Area | 232 sqft |
| Canopy | 232 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 608600 |
|---|---|
| Street Address | 321 FENIMORE RD |
| City | MAMARONECK |
| State | NY |
| Zip | 10543-2520 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R-5 |
| Legal Subdivision | MAP OF FIRST SUBDIVISION OF GRAND PARK |
| Legal Block | 157 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | MAMARONECK |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 7200 |
321 Fenimore Rd, a duplex, is owned and occupied by two individuals who bought it in November 2006.
Source: Westchester County and Mamaroneck Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 321 FENIMORE RD, MAMARONECK, NY 10543-2520 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants with Right of Survivorship |
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 |
|---|---|
| Last Sale | Nov 8, 2006 · Amount on File |
| Deed Sale | Nov 8, 2006 · Amount on File |
| Prior Sale | Jun 7, 2000 · Amount on File |
| Deed Document Number | 2006462840007 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 321 Fenimore Rd was $15,988, up 40.5% from the year before.
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 | $15,988.00 (+40.48%) | ||
| 2025 | $11,381.00 | $726,000 (+4.01%) Land $124,000 Building $602,000 | $726,000 (+4.01%) Land $124,000 Building $602,000 |
| 2024 | $698,000 (+4.96%) Land $124,000 Building $574,000 | $698,000 (+4.96%) Land $124,000 Building $574,000 | |
| 2023 | $665,000 Land $124,000 Building $541,000 | $665,000 Land $124,000 Building $541,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 321 Fenimore 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 |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 34 units insured incl. 27 condo units |
| Nearby Flood Claims | 23 (1979–2023) |
| Claims Outside the SFHA | 10 of 23 |
| 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.
The area around 321 Fenimore Rd has no burnable land within ember reach, so its wildfire risk is not rated.
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 505 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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