Suffolk County and Smithtown Town property record for 21 Delaware Ave, Commack, NY 11725
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 982 sqft · built 1958 |
| Lot Size | 0.25 acres (10,890 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $395,000 (Oct 2016) |
| Tax Bill | $12,047 (2024) |
| Deeds & Mortgages | Nov 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 473489 144.-3-23 |
| Primary APN | 473489 144.-3-23 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 982 sqft Living Area |
| Gross Area | 1,257 sqft |
| 1st Floor Area | 982 sqft |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Ranch |
| Exterior Material | Composition/Composite |
| Lot Area | 10,890 sqft (0.25 acres) |
| View / Lot | Suburban |
| Garage Type | Attached |
| Garage Area | 275 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Area | 647 sqft |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Sewer | Connected |
| Water Source | Commercial |
| Street Address | 21 DELAWARE AVE |
|---|---|
| City | COMMACK |
| State | NY |
| Zip | 11725-5003 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 5-174826 TC-52 *2587 SEC 2 LOT 57 BIRCHWOOD GARDENS |
| Legal Subdivision | BIRCHWOOD GDNS |
| Legal Block | 3 |
| Legal Lot Number | 23 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | SMITHTOWN |
| Census Block Group | 1 |
| Census Block | 1026 |
| Census Tract | 135205 |
Source: Suffolk County and Smithtown Town records, as of August 11, 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 Record |
|---|---|
| Mailing Address | 21 DELAWARE AVE, COMMACK, NY 11725-5003 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 20, 2016 · Amount on Record |
| Deed Sale | Oct 20, 2016 · Amount on Record |
| Deed Book / Page | 12884 / 477 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SUFFOLK NY |
| Property Address | 21 DELAWARE AVE, COMMACK, NY 11725-5003 |
| Transaction Type | Mortgage |
| Record Updated | Mar 19, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0235460039 |
|---|---|
| Date | Nov 7, 2023 |
| Book Page | 23546/39 |
| Name | SECRETARY HOUSING URBAN DEVELOPMENT |
|---|---|
| Type | Government Agency |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 265 Months |
| Due | Dec 1, 2045 |
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 | Commack Union Free School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,635 (+6.92%) Land $300 Building $4,335 | $579,375 (+11,527.03%) Land $37,500 Building $541,875 | |
| 2024 | $12,047.00 | ||
| 2023 | $4,335 Land $300 Building $4,035 | $4,983 Land $345 Building $4,638 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
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 | 1 in force |
| Nearby Flood Claims | 4 (1980–1985) |
| Claims Outside the SFHA | 2 of 4 |
| Most Recent Claim | Aug 1985 · 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 97.9% 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 | 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 266 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber | 980 / 880 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures