West Haven City property record for 166 William St, West Haven, CT 06516
| Property Type | Triplex |
|---|---|
| Details | 3 bd · 3 ba · 2,717 sqft · built 1921 |
| Lot Size | 0.18 acres (7,841 sqft) |
| Owner | Individual Name on File |
| Last Sale | $121,500 (Aug 1998) |
| Tax Bill | $10,016 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | WHAV M:0027 B:0393 L:0000 |
| Primary APN | WHAV M:0027 B:0393 L:0000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Units | 3 Units |
| Stories | 3 Stories |
| Building Area | 2,717 sqft Living Area |
| Gross Area | 4,277 sqft |
| 1st Floor Area | 1,004 sqft |
| Basement Area | 1,004 sqft |
| Unfinished Basement | 1,004 sqft |
| Year Built | Built 1921 |
|---|---|
| Effective Year Built | Effective 1921 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 7,841 sqft (0.18 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 1087 |
|---|---|
| Street Address | 166 WILLIAM ST |
| City | WEST HAVEN |
| State | CT |
| Zip | 06516-6090 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | R3 |
| Legal Block | 393 |
| Jurisdiction | WEST HAVEN CT |
| Township / Civil Division | WEST HAVEN |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 155000 |
166 William St, a triplex, is owned and occupied by an individual who bought it in August 1998.
Source: West Haven City records, as of September 25, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 166 WILLIAM ST, WEST HAVEN, CT 06516-6090 |
| Occupancy | Owner Occupied |
| 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 | Aug 27, 1998 · Amount on File |
| Deed Sale | Aug 27, 1998 · Amount on File |
| Deed Book / Page | 1066 / 124 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 166 William St was $10,016.
Source: West Haven City assessment roll, as of September 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | West Haven City |
| Unified School District | West Haven School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $10,016.00 | $290,080 Land $63,070 Building $227,010 | $414,400 Land $90,100 Building $324,300 |
| 2024 | $10,016.00 (+14.8%) | ||
| 2023 | $8,725.00 (+1.99%) | $187,600 (-) Land $43,680 Building $143,920 | |
| 2022 | $8,555.00 | $187,600 Land $43,680 Building $143,920 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 166 William St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective January 25, 2026
| 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 166 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 | REGIONAL WATER AUTHORITY serves 418,900 people · EPA ID CT0930011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2024 |
| 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 | 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 629 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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