Suffolk County and Islip Town property record for 51 Monell Ave, Islip, NY 11751
| Property Type | Single Family Home |
|---|---|
| Details | 2,047 sqft · built 1886 |
| Lot Size | 0.14 acres (6,098 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $245,000 (May 2002) |
| Tax Bill | $12,516 (2024) |
| Deeds & Mortgages | Oct 2020 Sale Mar 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 370.-4-14 |
| Primary APN | 472889 370.-4-14 |
|---|---|
| Alternative APNs |
|
| Building Area | 2,047 sqft Living Area |
|---|---|
| 1st Floor Area | 819 sqft |
| Year Built | Built 1886 |
|---|---|
| Effective Year Built | Effective 1886 |
| Lot Area | 6,098 sqft (0.14 acres) |
| Lot Width | 50 ft Width |
| Account Number | 040759 |
|---|---|
| Street Address | 51 MONELL AVE |
| City | ISLIP |
| State | NY |
| Zip | 11751-3903 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | B |
| Legal Description | X2217717Y183769 T059H00000000H |
| Legal Block | 0004 |
| Legal Lot Number | 400 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 147402 |
51 Monell Ave is owned and occupied by two individuals who bought it in May 2002.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 51 MONELL AVE, ISLIP, NY 11751-3903 |
| 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 |
|---|---|
| Oct 21, 2020 | Deed, Transfer |
| Mar 23, 2017 | Deed of Trust, Mortgage · Conventional Mortgage TD BK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 24, 2002 · Amount on File |
| Deed Sale | May 24, 2002 · Amount on File |
| Prior Sale | May 11, 1999 · Amount on File |
| Deed Book / Page | 12187 / 843 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Oct 21, 2020 |
| Property Address | 51 MONELL AVE, ISLIP, NY 11751-3903 |
| Document Number | 0130750110 |
| Book / Page | 13075 / 110 |
| Instrument Date | Aug 31, 2020 |
| Transaction Type | Transfer |
| Record Updated | Aug 20, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 152 N WELLWOOD AVE, LINDENHURST, NY 11757-4046 |
| Investor | Possibly a Property Investor |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 51 MONELL AVE, ISLIP, NY 11751-3903 |
| Document Number | 0228070481 |
| Book / Page | 022807 / 000481 |
| Instrument Date | Mar 23, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 1, 2017 |
| Name | Verified Name |
|---|---|
| Address | 51 MONELL AVE ISLIP NY 117513903, ISLIP, NY 11751-3903 |
| Document Number | 0228070481 |
|---|---|
| Date | Apr 12, 2017 |
| Book Page | 022807/000481 |
| Name | TD BK NA |
|---|---|
| Type | Bank |
| Address | PORTLAND, ME 04101 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 11, 2047 |
Source: Suffolk County and Islip Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Islip Town |
| Unified School District | Islip Union Free School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $37,900 Land $10,400 Building $27,500 | $533,803 (-) Land $146,479 Building $387,324 | |
| 2024 | $12,516.00 | $533,803 (+2.54%) Land $146,479 Building $387,324 | |
| 2023 | $37,900 Land $10,400 Building $27,500 | $520,604 Land $142,857 Building $377,747 |
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 51 Monell Ave in Zone X, an area of minimal flood risk, though there have been 75 flood claims nearby since 1978.
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 53 policies |
| Nearby Flood Policies | 53 in force |
| Nearby Flood Claims | 75 (1978–2021) |
| Claims Outside the SFHA | 44 of 75 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
| 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 51 Monell Ave 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 | 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 421 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 | 2,300 / 2,300 |
| T-Mobile Fixed Wireless | 100 / 20 |
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