Suffolk County and Babylon Town property record for 521 Commack Rd, Islip, NY 11751 · Last verified August 2026
| Property Type | Industrial > General Industrial |
|---|---|
| Year Built | Built 1976 |
| Square Footage | 84,000 sqft Building Perimeter |
| Lot Size | 4.6 acres |
| Last Sale | $3,911,572 (2000) |
| Tax Bill | $800.00 (2024) |
| Primary APN | 472089 45.-1-5.3 |
|---|---|
| Alternative APNs |
|
| Building Area | 84,000 sqft Building Perimeter |
|---|
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1976 |
| Lot Area | 200,376 sqft |
| Account Number | 20251109001 |
|---|---|
| Street Address | 521 COMMACK RD |
| City | ISLIP |
| State | NY |
| Zip | 11751 |
| Property Usage | Industrial Property Usage |
| Type | Industrial > General Industrial |
| Legal Description | N-NICHOLS RD E-KRINSKY S-LI AVE W-COMMACK RD |
| Legal Block | 1 |
| Legal Lot Number | 5 |
| Jurisdiction | SUFFOLK NY |
| Minor Civil Division | BABYLON |
| Census Blockgroup | 2 |
| Census Block | 2000 |
| Census Tract | 122707 |
Source: Suffolk County and Babylon Town records · APN 472089 45.-1-5.3
Assessment roll updated August 11, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 575 UNDERHILL BLVD, 200, SYOSSET, NY 11791-3416 |
| Owner Type | Owner is a Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Sep 06, 2022 | Deed of Trust, Mortgage · Second Mortgage to Cover Down Payment NEW YORK COMMUNITY BANK |
| Jul 17, 2019 | Deed of Trust, Mortgage BLACKSTONE MTG TR INC |
| Jul 17, 2019 | Loan Modification, Consolidation and Extension, Mortgage BLACKSTONE MTG |
| Jul 13, 2018 | Deed, Transfer |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 06, 2000 · Amount on Record |
| Deed Sale | Dec 06, 2000 · Amount on Record |
| Prior Sale | Nov 30, 1998 · Amount on Record |
| Deed Book / Page | 12088 / 824 |
| Last Transfer Date | Sep 30, 2002 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 521 COMMACK RD, DEER PARK, NY 11729-3803 |
| Transaction Type | Mortgage |
| Record Updated | Dec 19, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0234540749 |
|---|---|
| Date | Sep 06, 2022 |
| Book Page | 23454/749 |
| Name | NEW YORK COMMUNITY BANK |
|---|---|
| Type | Bank |
| Type | Second Mortgage to Cover Down Payment |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 521 COMMACK RD, DEER PARK, NY 11729-3803 |
| Document Number | 0231000714 |
| Instrument Date | Jul 17, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Mar 10, 2020 |
| Title Company | NOT AVAILABLE |
| Additional |
|
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 575 UNDERHILL BLVD #200 SYOSSET NY 117913416, 200, SYOSSET, NY 11791-3416 |
| Document Number | 0231000714 |
|---|---|
| Date | Jan 28, 2020 |
| Book Page | 023100/000714 |
| Name | BLACKSTONE MTG TR INC |
|---|---|
| Address | 345 PARK AVE, NEW YORK, NY 10154-0004 |
| Amount | Amount Recorded |
|---|
| Document Type | Loan Modification, Consolidation and Extension |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 521 COMMACK RD, DEER PARK, NY 11729-3803 |
| Document Number | 0231000715 |
| Instrument Date | Jul 17, 2019 |
| Transaction Type | Mortgage |
| Record Updated | May 13, 2020 |
| Title Company | NOT AVAILABLE |
| Additional |
|
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 575 UNDERHILL BLVD #200 SYOSSET NY 117913416, 200, SYOSSET, NY 11791-3416 |
| Document Number | 0231000715 |
|---|---|
| Date | Jan 28, 2020 |
| Book Page | 023100/000715 |
| Name | BLACKSTONE MTG |
|---|---|
| Type | Mortgage Company |
| Address | 345 PARK AVE, NEW YORK, NY 10154-0004 |
| Amount | Amount Recorded |
|---|
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Jul 13, 2018 |
| Property Address | 521 COMMACK RD, DEER PARK, NY 11729-3803 |
| Document Number | 0129690548 |
| Book / Page | 12969 / 548 |
| Instrument Date | May 09, 2018 |
| Transaction Type | Transfer |
| Record Updated | Aug 20, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
Source: Suffolk County and Babylon Town records · Assessment roll updated August 11, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Babylon Town |
| Unified School District | Deer Park Union Free School District (PK - 12) |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $49,280 (-) Land $14,040 Building $35,240 | $8,352,542 (+11,255.97%) Land $2,379,661 Building $5,972,881 | |
| 2024 | $800.00 | $73,552 (-1.49%) Land $20,955 Building $52,597 | |
| 2023 | $49,280 Land $14,040 Building $35,240 | $74,667 Land $21,273 Building $53,394 |
Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), updated September 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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