Darien Town property record for 17 William St, Darien, CT 06820
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,812 sqft · built 1916 |
| Lot Size | 0.12 acres (5,227 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $206,500 (Jun 1996) |
| Tax Bill | $9,425 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | DARI M:23 B:55 |
| Primary APN | DARI M:23 B:55 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,812 sqft Living Area |
| 1st Floor Area | 972 sqft |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1916 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 5,227 sqft (0.12 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Oil |
| Account Number | 7312 |
|---|---|
| Street Address | 17 WILLIAM ST |
| City | DARIEN |
| State | CT |
| Zip | 06820-4029 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15 |
| Legal Block | 55 |
| Jurisdiction | DARIEN CT |
| Township / Civil Division | DARIEN |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 30500 |
Source: Darien Town records, as of June 25, 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 | 17 WILLIAM ST, DARIEN, CT 06820-4029 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 10, 1996 · Amount on Record |
| Deed Sale | Jun 10, 1996 · Amount on Record |
| Prior Sale | Aug 18, 1992 · Amount on Record |
| Deed Book / Page | 800 / 502 |
| Record Updated | Sep 20, 2026 |
Source: Darien Town assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision | Darien Town |
| Unified School District | Darien School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $9,425.00 | $608,860 (+15.91%) Land $378,700 Building $230,160 | $426,202 Land $265,090 Building $161,112 |
| 2024 | $9,425.00 (+1.89%) | ||
| 2023 | $9,250.00 (+2.2%) | $525,280 (-) Land $360,640 Building $164,640 | |
| 2022 | $9,051.00 | $525,280 Land $360,640 Building $164,640 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 55% of Connecticut |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 333 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 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
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