Dane County property record for 831 Williamson St, Madison, WI 53703
| Property Type | Warehouse, Storage |
|---|---|
| Details | 1,281 sqft · built 1875 |
| Lot Size | 0.3 acres (13,068 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $11,582 (2024) |
| Deeds & Mortgages | Jun 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-134-1408-6 |
| Primary APN | 0709-134-1408-6 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 1,281 sqft Total Area |
| 1st Floor Area | 1,281 sqft |
| 2nd Floor Area | 1,281 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1875 |
|---|---|
| Effective Year Built | Effective 1900 |
| Exterior Material | Brick |
| Foundation Type | Concrete |
| Roof Material | Asphalt |
| Lot Area | 13,068 sqft (0.3 acres) |
| Driveway | Driveway |
| Driveway Area | 148 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 831 WILLIAMSON ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53703-4440 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Local Zoning Code | HIS-TL, TSS |
| Legal Description | ORIGINAL PLAT, BLK 148, NE 1/2 OF LOT 5 AND ALL OF LOT 6 |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 13 |
| Legal Subdivision | ORIGINAL PLAT, BLK 148, NE 1/2 OF |
| Legal Block | 148 |
| Legal Lot Number | 5-6 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 1901 |
831 Williamson St, an industrial property, is owner-occupied and held in a trust since June 2017.
Source: Dane County records, as of January 22, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 831 WILLIAMSON ST, MADISON, WI 53703-4440 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Trust |
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 Transfer Date | Jun 21, 2017 |
| Transfer Doc | 0005335172 |
| Record Updated | Jun 8, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Jun 21, 2017 |
| Property Address | 831 WILLIAMSON ST, MADISON, WI 53703-4440 |
| Document Number | 0005335172 |
| Instrument Date | Jun 15, 2017 |
| Instrument | 5335172 |
| Transaction Type | Transfer |
| Record Updated | Jul 11, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
Source: Dane County assessment roll, as of January 1, 2025
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Dane County |
| Municipality | Madison City |
| Unified School District | Madison Metropolitan School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $659,000 Land $245,000 Building $414,000 | ||
| 2024 | $11,582.00 | $659,000 | |
| 2023 | $610,000 Land $245,000 Building $365,000 | ||
| 2022 | $11,328.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 831 Williamson St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 20, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 831 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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