Nassau County and Oyster Bay Town property record for 231 Cleft Rd, Mill Neck, NY 11765
| Property Type | Single Family Home |
|---|---|
| Details | 10.5 ba · 11,150 sqft · built 1916 |
| Lot Size | 13.3 acres (580,742 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $3,900,000 (Jul 1996) |
| Tax Bill | $80,508 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 29-00L-00-0659 |
| Primary APN | 29-00L-00-0659 |
|---|---|
| Alternative APNs |
|
| Full Baths | 10.5 Baths |
|---|---|
| Half Baths | 3 Half Baths |
| Total Rooms | 23 Rooms |
| Stories | 2 Stories |
| Building Area | 11,150 sqft Living Area |
| Gross Area | 13,564 sqft |
| 1st Floor Area | 4,568 sqft |
| Basement Area | 499 sqft |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1916 |
|---|---|
| Effective Year Built | Effective 1916 |
| Architectural Style | Mansion |
| Exterior Material | Brick |
| Lot Area | 580,742 sqft (13.3 acres) |
| Garage Type | Attached |
| Garage Area | 1,307 sqft |
| Parking Spaces | 5 Parking Spaces |
| Pool Area | 800 sqft |
|---|---|
| Porch | Slab |
| Porch Area | 197 sqft |
| Patio Area | 16 sqft |
| Tennis Court | Tennis Court |
| Total Buildings | 2 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 29 L 06590 |
|---|---|
| Street Address | 231 CLEFT RD |
| City | MILL NECK |
| State | NY |
| Zip | 11765-1003 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TOWN #3 SCH DIST 009 |
| Legal Block | L |
| Legal Lot Number | 659 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | OYSTER BAY |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 517801 |
Source: Nassau County and Oyster Bay Town records · APN 29-00L-00-0659
Assessment roll updated June 17, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 231 CLEFT RD, MILL NECK, NY 11765-1003 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 22, 1996 · Amount on Record |
| Deed Sale | Jul 22, 1996 · Amount on Record |
| Deed Book / Page | 10673 / 399 |
| Record Updated | Sep 20, 2026 |
Source: Nassau County and Oyster Bay Town records · Assessment roll updated June 17, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Oyster Bay Town |
| Municipality | Mill Neck Village |
| Unified School District | Oyster Bay-East Norwich Central School District (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $4,600 (-26.51%) Land $1,481 Building $3,119 | $4,600,000 (-26.51%) | |
| 2025 | $80,508.00 (-22.74%) | ||
| 2023 | $104,210.00 Additional exemption filed | $6,259 Land $2,141 Building $4,118 | $6,259,000 |
Source: FEMA National Flood Hazard Layer as of April 5, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 8 (1984–2021) |
| Claims Outside the SFHA | 5 of 8 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
| 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 |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 980 / 880 |
| Optimum Communications Cable | 940 / 35 |
Based on FCC filings for 22 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | LIBERTY UTILITIES NEW YORK - MILL NECK private · serves 280 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 ppb (2024–2026) action level 15 ppb |
| Copper | 1.6 mg/L (2015–2017) action level 1.3 mg/L |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ. The full violation and enforcement history is in the system's EPA record.
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