Westchester County and North Castle Town property record for 4 Byram Brook Pl, Armonk, NY 10504
| Property Type | Single Family Home |
|---|---|
| Details | 2 ba · 1,118 sqft · built 1955 |
| Lot Size | 1 acres (43,560 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $540,000 (Jan 2017) |
| Tax Bill | $13,252 (2026) |
| Deeds & Mortgages | Jun 2018 Mortgage Jan 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 553800 108.03-3-8 |
| Primary APN | 553800 108.03-3-8 |
|---|---|
| Alternative APNs |
|
| Full Baths | 2 Baths |
|---|---|
| Stories | 1 Story |
| Building Area | 1,118 sqft Living Area |
| 1st Floor Area | 1,118 sqft |
| Basement Area | 411 sqft |
| Finished Basement | 411 sqft |
| Unfinished Basement | 411 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Ranch |
| Lot Area | 43,560 sqft (1 acres) |
| Garage Type | Attached |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Sewer | Septic |
|---|---|
| Water Source | Well |
| Account Number | R1A |
|---|---|
| Street Address | 4 BYRAM BROOK PL |
| City | ARMONK |
| State | NY |
| Zip | 10504-2316 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-1A |
| Legal Subdivision | BYRAM BROOK PLACE |
| Legal Block | 3 |
| Legal Lot Number | 8.000 |
| Jurisdiction | WESTCHESTER NY |
| Township / Civil Division | NORTH CASTLE |
| Census Block Group | 3 |
| Census Block | 3021 |
| Census Tract | 12303 |
4 Byram Brook Pl is owned and occupied by two individuals who bought it in January 2017.
Source: Westchester County and North Castle Town records, as of October 21, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4 BYRAM BROOK PL, ARMONK, NY 10504-2316 |
| 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.
| Date | Document |
|---|---|
| Jun 27, 2018 | Deed of Trust, Mortgage · Conventional Mortgage KEYBANK USA |
| Jan 4, 2017 | Bargain and Sale Deed, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 4, 2017 · Amount on File |
| Deed Sale | Jan 4, 2017 · Amount on File |
| Deed Document Number | 2017563573775 |
| Prior Transfer Date | Oct 23, 1998 |
| Prior Transfer Doc | 1219000147 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Property Address | 4 BYRAM BROOK PL, ARMONK, NY 10504-2316 |
| Document Number | 0581933031 |
| Instrument Date | Jun 27, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Aug 7, 2018 |
| Title Company | LENDER RECORDING SERVICES |
| Name | Verified Name |
|---|---|
| Address | 4 BYRAM BROOK PL ARMONK NY 105042316, ARMONK, NY 10504-2316 |
| Document Number | 0581933031 |
|---|---|
| Date | Jul 12, 2018 |
| Book Page | 058193/003031 |
| Name | KEYBANK USA |
|---|---|
| Type | Bank |
| Address | BROOKLYN, OH 44144 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | Jul 11, 2038 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | WESTCHESTER NY |
| Recording Date | Jan 4, 2017 |
| Property Address | 4 BYRAM BROOK PL, ARMONK, NY 10504-2316 |
| Document Number | 0563573775 |
| Instrument Date | Dec 22, 2016 |
| Instrument | 563573775 |
| Transaction Type | Transfer |
| Record Updated | May 6, 2022 |
| Amount | Amount on Record |
|---|---|
| Tax | $2,162.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 4 BYRAM PL, 4, ARMONK, NY 10504 |
| Name | Verified Name |
|---|---|
| Address | 463 16TH ST # 3, 3, BROOKLYN, NY 11215-5913 |
The 2026 property tax bill for 4 Byram Brook Pl was $13,252, down 61% from the year before.
Source: Westchester County and North Castle Town assessment roll, as of May 14, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Westchester County |
| County Subdivision | North Castle Town |
| Unified School District | Byram Hills Central School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $13,252.00 (-60.95%) | ||
| 2025 | $33,938.00 | $11,800 (-) Land $2,700 Building $9,100 | $728,395 (+11.11%) Land $166,667 Building $561,728 |
| 2024 | $11,800 (-) Land $2,700 Building $9,100 | $655,556 (-8.33%) Land $150,000 Building $505,556 | |
| 2023 | $11,800 Land $2,700 Building $9,100 | $715,151 Land $163,636 Building $551,515 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 4 Byram Brook Pl in Zone X, an area of minimal flood risk, though there have been 10 flood claims nearby since 1982.
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 |
| Flood Insurance Cost | Premium on File median of 20 policies |
| Nearby Flood Policies | 20 in force |
| Nearby Flood Claims | 10 (1982–2023) |
| Claims Outside the SFHA | 7 of 10 |
| Most Recent Claim | Sep 2023 · Severe Storm 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 4 Byram Brook Pl is low, with 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 80% of the US · above 54% of New York |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 104 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Optimum Cable | 940 / 35 |
| T-Mobile Fixed Wireless | 100 / 20 |
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