Dane County property record for 1001 Williamson St, Madison, WI 53703
| Property Type | Quadplex |
|---|---|
| Details | 11,094 sqft · built 1991 |
| Lot Size | 0.35 acres (15,246 sqft) |
| Owner | Company Name on File |
| Last Sale | $62,000 (Dec 1990) |
| Tax Bill | $199 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-134-0211-4 |
| Primary APN | 0709-134-0211-4 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 11,094 sqft |
| 1st Floor Area | 3,698 sqft |
| 2nd Floor Area | 3,698 sqft |
| Year Built | Built 1991 |
|---|---|
| Exterior Material | Wood |
| Lot Area | 15,246 sqft (0.35 acres) |
| Total Buildings | 2 Buildings |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 1001 WILLIAMSON ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53703-4514 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Local Zoning Code | PD |
| Legal Description | ORIGINAL PLAT, AKA FARWELLS REPLAT, BLK 175, LOT 2, & NW 3/4 OF LOT 1 |
| Legal Block | 175 |
| Legal Lot Number | 1-2 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 4 |
| Census Block | 4004 |
| Census Tract | 1901 |
1001 Williamson St, a quadplex, is owned by a company that bought it in December 1990.
Source: Dane County records, as of January 22, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1501 WILLIAMSON ST, MADISON, WI 53703-3728 |
| Owner Type | Company |
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 | Dec 1, 1990 · Amount on File |
| Deed Sale | Dec 1, 1990 · Amount on File |
| Deed Document Number | 0015183018 |
| Record Updated | Jun 8, 2026 |
Source: Dane County assessment roll, as of January 1, 2024
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Dane County |
| Municipality | Madison City |
| Unified School District | Madison Metropolitan School District (PK - 12) |
| Year | Tax Bill |
|---|---|
| 2024 | $199.00 |
| 2022 | $211.00 |
FEMA maps place 1001 Williamson St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 20, 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 1001 Williamson 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 | MADISON WATER UTILITY serves 272,000 people · EPA ID WI1130224 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Apr 2023 |
| Lead | 2 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory Oct 2024 |
| Monitoring and Reporting | 1 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 427 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| LiteWire Fixed Wireless · Fiber in parts of the area | 100 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
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