Suffolk County and Smithtown Town property record for 21 Dehan St, Smithtown, NY 11787
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.25 acres (10,890 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $775,000 (Feb 2026) |
| Tax Bill | $11,024 (2024) |
| Deeds & Mortgages | Feb 2026 Sale & Mortgage Dec 2018 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 473489 32.-4-74 |
| Primary APN | 473489 32.-4-74 |
|---|---|
| Alternative APNs |
|
| Lot Area | 10,890 sqft (0.25 acres) |
|---|
| Account Number | S100566 |
|---|---|
| Street Address | 21 DEHAN ST |
| City | SMITHTOWN |
| State | NY |
| Zip | 11787-1013 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 15-599901 TC-62 *117 LOTS 24 TO 27 INRAPALLO PARK BLK 18 |
| Legal Subdivision | RAPPALLO PARK |
| Legal Block | 4 |
| Legal Lot Number | 74 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | SMITHTOWN |
| Census Block Group | 1 |
| Census Block | 1026 |
| Census Tract | 134902 |
21 Dehan St is owned by two individuals who bought it in February 2026.
Source: Suffolk County and Smithtown Town records, as of August 11, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 365 ROUTE 111, A2, SMITHTOWN, NY 11787-4741 |
| Owner Type | Individual |
| Vesting | Husband and Wife |
| Date | Document |
|---|---|
| Feb 3, 2026 | Deed, Transfer INTERSTATE HOME LOAN CENTER INC |
| Dec 3, 2018 | Grant Deed, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 3, 2026 · Amount on File |
| Deed Sale | Feb 3, 2026 · Amount on File |
| Prior Sale | Dec 3, 2018 · Amount on File |
| Deed Book / Page | 13324 / 902 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Feb 3, 2026 |
| Property Address | 21 DEHAN ST, SMITHTOWN, NY 11787-1013 |
| Document Number | 0133240902 |
| Book / Page | 13324 / 902 |
| Instrument Date | Dec 17, 2025 |
| Transaction Type | Transfer |
| Record Updated | Mar 18, 2026 |
| Title Company | MARATHON ABSTRACT |
| 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 | 365 ROUTE 111 APT A2, A2, SMITHTOWN, NY 11787-4741 |
| Document Number | 0023710708 |
|---|---|
| Date | Feb 3, 2026 |
| Instrument | 23710/708 |
| Name | INTERSTATE HOME LOAN CENTER INC |
|---|---|
| Type | Lending Institution |
| Amount | Amount on Record |
|---|---|
| Term | 361 Months |
| Due | Mar 1, 2056 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Recording Date | Dec 3, 2018 |
| Property Address | 21 DEHAN ST, SMITHTOWN, NY 11787-1013 |
| Document Number | 0129900342 |
| Book / Page | 012990 / 000342 |
| Instrument Date | Nov 8, 2018 |
| Transaction Type | Transfer |
| Record Updated | Jan 7, 2019 |
| Amount | Amount on Record |
|---|---|
| Tax | $1,916.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 9 CLANCY DR NORTHPORT NY 117681522, NORTHPORT, NY 11768-1522 |
Source: Suffolk County and Smithtown Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Smithtown Town |
| Unified School District | Kings Park Central School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,060 (-) Land $300 Building $3,760 | $507,500 (+7.5%) Land $37,500 Building $470,000 | |
| 2024 | $11,024.00 | $4,060 (-) Land $300 Building $3,760 | $472,093 (+10,015.56%) Land $34,884 Building $437,209 |
| 2023 | $4,060 Land $300 Building $3,760 | $4,667 Land $345 Building $4,322 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 21 Dehan St in Zone X, an area of minimal flood risk, though there have been 5 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 |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 5 (1978–2021) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Sep 2021 · Remnants Of Hurricane Ida |
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 Dehan 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 99.1% of the US · lower than 99.2% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | SMITHTOWN WATER DISTRICT serves 19,635 people · EPA ID NY5105656 |
|---|---|
| Water Source | Purchased groundwater from SUFFOLK COUNTY WATER AUTHORITY |
| Last State Inspection | Dec 2025 |
| Lead | 1 ppb (2025–2027) action level 15 ppb |
| 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, 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 533 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 2,300 / 2,300 |
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