Nassau County and Hempstead Town property record for 155 William St, Valley Stream, NY 11580
| Property Type | Duplex |
|---|---|
| Details | 3 ba · 2,445 sqft · built 1950 |
| Lot Size | 0.184 acres (8,000 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $774,500 (Oct 2019) |
| Tax Bill | $11,943 (2025) |
| Deeds & Mortgages | Oct 2019 Sale Jan 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 37-297-00-0159 |
| Primary APN | 37-297-00-0159 |
|---|---|
| Alternative APNs |
|
| Full Baths | 3 Baths |
|---|---|
| Total Rooms | 11 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 2,445 sqft Living Area |
| Gross Area | 2,581 sqft |
| 1st Floor Area | 1,321 sqft |
| Basement Area | 136 sqft |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Cape Cod |
| Exterior Material | Brick/Stone |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 8,000 sqft (0.184 acres) |
| Lot Dimensions | 100 ft deep x 80 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Oil |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 37297 01590 |
|---|---|
| Street Address | 155 WILLIAM ST |
| City | VALLEY STREAM |
| State | NY |
| Zip | 11580-3603 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | TOWN #1 SCH DIST 030 |
| Legal Subdivision | VALLEY STREAM |
| Legal Block | 297 |
| Legal Lot Number | 159-1 |
| Jurisdiction | NASSAU NY |
| Township / Civil Division | HEMPSTEAD |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 410300 |
Source: Nassau County and Hempstead Town records, as of June 17, 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 | 155 WILLIAM ST, VALLEY STREAM, NY 11580-3603 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Oct 30, 2019 | Grant Deed, Transfer NOT AVAILABLE |
| Jan 17, 2017 | Bargain and Sale Deed, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 30, 2019 · Amount on Record |
| Deed Sale | Oct 30, 2019 · Amount on Record |
| Prior Sale | Jan 17, 2017 · Amount on Record |
| Deed Document Number | 201995637 |
| Deed Book / Page | 13869 / 745 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | Oct 30, 2019 |
| Property Address | 155 WILLIAM ST, VALLEY STREAM, NY 11580-3603 |
| Document Number | 0138690745 |
| Book / Page | 013869 / 000745 |
| Instrument Date | Oct 21, 2019 |
| Instrument | 95637 |
| Transaction Type | Transfer |
| Record Updated | Nov 11, 2019 |
| Title Company | NOT AVAILABLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $3,098.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 341 GROVE ST #3L BROOKLYN NY 112375534, 3L, BROOKLYN, NY 11237-5534 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | NASSAU NY |
| Recording Date | Jan 17, 2017 |
| Property Address | 155 WILLIAM ST, VALLEY STREAM, NY 11580-3603 |
| Document Number | D134620836 |
| Book / Page | D13462 / 0836 |
| Map Reference | MAP 526 CASE 482 |
| Instrument Date | Jan 5, 2017 |
| Instrument | 201700005109 |
| Transaction Type | Transfer |
| Record Updated | May 14, 2021 |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,500.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 10 BARNES PL, 10, VALLEY STREAM, NY 11580-3702 |
| Name | Verified Name |
|---|---|
| Address | 10 BARNES PL, VALLEY STREAM, NY 11580-3702 |
Source: Nassau County and Hempstead Town assessment roll, as of June 17, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Nassau County |
| County Subdivision | Hempstead Town |
| Municipality | Valley Stream Village |
| Elementary School District | Valley Stream Union Free School District 30 (PK - 06) |
| Secondary School District | Valley Stream Central High School District (07 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $645 (+8.95%) Land $238 Building $407 | $645,000 (+8.95%) | |
| 2025 | $11,943.00 (-0.99%) | ||
| 2023 | $12,063.00 Additional exemption filed | $592 Land $238 Building $354 | $592,000 |
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.
Source: FEMA National Flood Hazard Layer, effective April 5, 2023 · 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 |
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 | 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 | LIBERTY UTILITIES NEW YORK - LYNBROOK private · serves 220,000 people · EPA ID NY2902835 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2023 |
| Lead | 5 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Corrosion control Jul 2025 |
| 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 993 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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