Suffolk County and Islip Town property record for 21 Elm St, Central Islip, NY 11722
| Property Type | Single Family Home |
|---|---|
| Details | 1,196 sqft · built 1991 |
| Lot Size | 0.13 acres (5,663 sqft) |
| Owner | Individual Name on File |
| Last Sale | $529,000 (Aug 2025) |
| Deeds & Mortgages | Aug 2025 Sale & Mortgage Jul 2018 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 164.-3-58.2 |
| Primary APN | 472889 164.-3-58.2 |
|---|---|
| Alternative APNs |
|
| Building Area | 1,196 sqft Living Area |
|---|---|
| 1st Floor Area | 552 sqft |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Lot Area | 5,663 sqft (0.13 acres) |
| Lot Dimensions | 97.5 ft deep x 60 ft wide |
| Garage Type | Attached |
| Garage Area | 264 sqft |
| Account Number | 791693 |
|---|---|
| Street Address | 21 ELM ST |
| City | CENTRAL ISLIP |
| State | NY |
| Zip | 11722-4146 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RRD |
| Legal Description | EDZ T024H00000000 |
| Legal Block | 4000 |
| Legal Lot Number | 300 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 146203 |
21 Elm St is owned and occupied by an individual who bought it in August 2025.
Source: Suffolk County and Islip Town records, as of August 11, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21 ELM ST, CENTRAL ISLIP, NY 11722-4146 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Individual(s) |
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 |
|---|---|
| Aug 4, 2025 | Deed, Transfer · Stand-Alone First Mortgage CONTOUR MORTGAGE CORP |
| Jul 10, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Oct 13, 2017 | Grant Deed, Transfer LAND BARON ABSTRACT COMPANY INC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 4, 2025 · Amount on File |
| Deed Sale | Aug 4, 2025 · Amount on File |
| Deed Book / Page | 13303 / 941 |
| Prior Transfer Date | Apr 16, 2018 |
| Prior Transfer Doc | 0129680871 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Aug 4, 2025 |
| Property Address | 21 ELM ST, CENTRAL ISLIP, NY 11722-4146 |
| Document Number | 0133030941 |
| Book / Page | 13303 / 941 |
| Instrument Date | Apr 24, 2025 |
| Transaction Type | Transfer |
| Record Updated | Apr 21, 2026 |
| Title Company | STEWART TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 21 ELM ST, CENTRAL ISLIP, NY 11722-4146 |
| Document Number | 0023674277 |
|---|---|
| Date | Aug 4, 2025 |
| Instrument | 23674/277 |
| Name | CONTOUR MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Stand-Alone First Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2055 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Jul 10, 2018 |
| Property Address | 21 ELM ST, CENTRAL ISLIP, NY 11722-4146 |
| Document Number | 0129680871 |
| Book / Page | 012968 / 000871 |
| Instrument Date | Apr 16, 2018 |
| Transaction Type | Transfer |
| Record Updated | Sep 6, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 42 SMITHS LN COMMACK NY 117253525, COMMACK, NY 11725-3525 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Oct 13, 2017 |
| Property Address | 21 ELM ST, CENTRAL ISLIP, NY 11722-4146 |
| Document Number | 0129330646 |
| Book / Page | 012933 / 000646 |
| Instrument Date | Sep 19, 2017 |
| Transaction Type | Transfer |
| Record Updated | Nov 15, 2017 |
| Title Company | LAND BARON ABSTRACT COMPANY INC |
| Amount | Amount on Record |
|---|---|
| Tax | $948.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 42 SMITHS LN COMMACK NY 117253525, COMMACK, NY 11725-3525 |
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 | Central Islip Union Free School District (PK - 12) |
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2025 | $23,800 Land $4,000 Building $19,800 | |
| 2024 | $335,211 (+2.54%) Land $56,338 Building $278,873 | |
| 2023 | $23,800 Land $4,000 Building $19,800 | $326,923 Land $54,945 Building $271,978 |
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 21 Elm St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1979.
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 |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 3 (1979–1980) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Mar 1980 · tidal / storm surge |
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 21 Elm St is low, with less than 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 96% of the US · lower than 95% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 202 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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