Danbury City property record for 23 William St, Danbury, CT 06810
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,520 sqft · built 1900 |
| Lot Size | 0.07 acres (3,049 sqft) |
| Owner | Company Name on File |
| Last Sale | $55,000 (Dec 2001) |
| Tax Bill | $4,907 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | DANB M:I15 L:92 |
| Primary APN | DANB M:I15 L:92 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,520 sqft Living Area |
| Gross Area | 2,875 sqft |
| 1st Floor Area | 824 sqft |
| Attic | Attic |
| Attic Area | 480 sqft |
| Basement Area | 824 sqft |
| Unfinished Basement | 824 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Conventional |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 3,049 sqft (0.07 acres) |
| Deck Area | Deck Area |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Oil |
| Sewer | Septic |
| Account Number | I15092 |
|---|---|
| Street Address | 23 WILLIAM ST |
| City | DANBURY |
| State | CT |
| Zip | 06810-7722 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RM12 |
| Legal Lot Number | 92 |
| Jurisdiction | DANBURY CT |
| Township / Civil Division | DANBURY |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 210600 |
23 William St is owned by a company that bought it in December 2001.
Source: Danbury City records, as of June 25, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 2361, DANBURY, CT 06813-2361 |
| Owner Type | Company |
| Vesting | Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 28, 2001 · Amount on File |
| Deed Sale | Dec 28, 2001 · Amount on File |
| Prior Sale | Mar 13, 2001 · Amount on File |
| Deed Book / Page | 1405 / 1171 |
| Transfer Doc | 1405001171 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 23 William St was $4,907.
Source: Danbury City assessment roll, as of June 25, 2026
| Type | Name |
|---|---|
| State | Connecticut |
| County Subdivision / Municipality | Danbury City |
| Unified School District | Danbury School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,907.00 | $196,350 Land $45,780 Building $150,570 | $137,445 Land $32,046 Building $105,399 |
| 2024 | $4,907.00 (+7.12%) | ||
| 2023 | $4,581.00 (+15.71%) | $196,350 (+39.95%) Land $45,780 Building $150,570 | |
| 2022 | $3,959.00 | $140,300 Land $46,200 Building $94,100 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 23 William St in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective November 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 23 William St is low, with a 0.01% annual chance of wildfire.
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 | 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 | DANBURY WATER DEPARTMENT serves 62,055 people · EPA ID CT0340011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2023 |
| Lead | Under 1 ppb (2026) action level 15 ppb |
| Water Quality | Turbidity resolved · Jul 2021 |
|---|---|
| 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 551 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| GoNetspeed Fiber | 2,000 / 2,000 |
| Xfinity Cable | 2,000 / 250 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile, Verizon.
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