Dane County property record for 1133 Williamson St, Madison, WI 53703
| Property Type | Commercial |
|---|---|
| Details | 4.5 ba · 2,410 sqft · built 1894 |
| Lot Size | 0.1 acres (4,356 sqft) |
| Owner | Company Name on File |
| Last Sale | $302,000 (May 2019) |
| Tax Bill | $7,216 (2025) |
| Deeds & Mortgages | Jun 2021 Mortgage Oct 2018 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-131-2530-2 |
| Primary APN | 0709-131-2530-2 |
|---|
| Full Baths | 4.5 Baths |
|---|---|
| Half Baths | 3 Half Baths |
| Stories | 2 Stories |
| Building Area | 2,410 sqft Gross Area |
| 1st Floor Area | 1,205 sqft |
| Basement Area | 825 sqft |
| Flooring | Wood |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1894 |
|---|---|
| Effective Year Built | Effective 1900 |
| Exterior Material | Aluminum/Vinyl |
| Foundation Type | Concrete |
| Roof Type | Gable |
| Roof Material | Other |
| Lot Area | 4,356 sqft (0.1 acres) |
| View / Lot | Traffic |
| Driveway | Asphalt Driveway |
| Driveway Area | 112 sqft |
| Cooling System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1133 WILLIAMSON ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53703-3752 |
| Property Category | Commercial |
| Property Type | Commercial > Retail |
| Local Zoning Code | TSS |
| Legal Description | ORIGINAL PLAT, AKA FARWELLS REPLAT, BLKS 182 & 183, SW 1/2 OF LOT 6. |
| Legal Range | 09E |
| Legal Township | 07N |
| Legal Section | 13 |
| Legal Quarter | 1 |
| Legal Subdivision | ORIGINAL PLAT, AKA FARWELLS REPLAT, BLKS |
| Legal Block | 182,1 |
| Legal Lot Number | 6 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 3 |
| Census Block | 3019 |
| Census Tract | 1901 |
1133 Williamson St, a commercial property, is owned by a company that bought it in May 2019.
Source: Dane County records, as of April 20, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 513 S BROOKS ST, MADISON, WI 53715-1603 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jun 8, 2021 | Deed of Trust, Mortgage · Commercial Mortgage SUMMIT CU |
| Oct 10, 2018 | Deed of Trust, Mortgage · Commercial Mortgage STARION FINANCIAL |
| May 30, 2019 | Warranty Deed, Transfer · Commercial Mortgage STARION FINANCIAL |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 30, 2019 · Amount on File |
| Deed Sale | May 30, 2019 · Amount on File |
| Deed Document Number | 20195491839 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 1133 WILLIAMSON ST, MADISON, WI 53703-3752 |
| Transaction Type | Mortgage |
| Record Updated | Jun 23, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0005737216 |
|---|---|
| Date | Jun 8, 2021 |
| Instrument | 5737216 |
| Name | SUMMIT CU |
|---|---|
| Type | Credit Union |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 1133 WILLIAMSON ST, MADISON, WI 53703-3752 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0005446814 |
|---|---|
| Date | Oct 10, 2018 |
| Instrument | 5446814 |
| Name | STARION FINANCIAL |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | May 30, 2019 |
| Property Address | 1133 WILLIAMSON ST, MADISON, WI 53703-3752 |
| Document Number | 0005491839 |
| Instrument Date | May 30, 2019 |
| Instrument | 5491839 |
| Transaction Type | Transfer |
| Record Updated | Jun 14, 2021 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $906.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 513 S BROOKS ST, MADISON, WI 53715-1603 |
| Document Number | 0005491840 |
|---|---|
| Date | May 30, 2019 |
| Instrument | 5491840 |
| Name | STARION FINANCIAL |
|---|
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
The 2025 property tax bill for 1133 Williamson St was $7,216, up 10.7% from the year before.
Source: Dane County assessment roll, as of March 16, 2026
| 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 | $7,216.00 (+10.69%) | $391,700 Land $75,000 Building $316,700 | |
| 2024 | $6,519.00 | $373,000 (+7.51%) | |
| 2023 | $345,000 Land $75,000 Building $270,000 | $346,943 | |
| 2022 | $6,058.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1133 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 | 5 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 1133 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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