Stamford City property record for 9 William St, Stamford, CT 06902
| Property Type | Duplex |
|---|---|
| Details | 7 bd · 4 ba · 3,440 sqft · built 1920 |
| Lot Size | 0.158 acres (6,897 sqft) |
| Owner | Individual Name on File |
| Last Sale | $360,000 (May 2013) |
| Tax Bill | $12,543 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 000-6509 |
| Primary APN | 000-6509 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 13 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 3,440 sqft Living Area |
| Gross Area | 5,620 sqft |
| 1st Floor Area | 1,492 sqft |
| Basement Area | 1,444 sqft |
| Unfinished Basement | 1,444 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,897 sqft (0.158 acres) |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Account Number | 6509 |
|---|---|
| Street Address | 9 WILLIAM ST |
| City | STAMFORD |
| State | CT |
| Zip | 06902-4010 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R5 |
| Legal Block | 6509 |
| Jurisdiction | STAMFORD CT |
| Township / Civil Division | STAMFORD |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 22101 |
9 William St, a duplex, is owned by an individual who bought it in May 2013.
Source: Stamford City records, as of June 25, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 225 NEW CANAAN RD, WILTON, CT 06897-3319 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 8, 2013 · Amount on File |
| Deed Sale | May 8, 2013 · Amount on File |
| Prior Sale | Jun 29, 1999 · Amount on File |
| Deed Document Number | 20131 |
| Deed Book / Page | 10738 / 156 |
| Transfer Doc | 10283-196 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 9 William St was $12,543.
Source: Stamford City assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | Stamford City |
| Unified School District | Stamford School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $12,543.00 | $524,380 Land $199,480 Building $324,900 | $367,066 Land $139,636 Building $227,430 |
| 2024 | $12,543.00 (-5.23%) | ||
| 2023 | $13,235.00 (+12.35%) | $524,380 (+20.94%) Land $199,480 Building $324,900 | |
| 2022 | $11,780.00 | $433,580 Land $144,580 Building $289,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 9 William St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 9 William St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | AQUARION-EASTERN FAIRFIELD COUNTY private · serves 351,756 people · EPA ID CT0150011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2025 |
| Lead | Under 1 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 24 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 246 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Frontier Fiber | 7,000 / 7,000 |
May also be available: Verizon.
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