Dane County property record for 945 Williamson St, Madison, WI 53703
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1 ba · 1,134 sqft · built 1909 |
| Lot Size | 0.045 acres (1,978 sqft) |
| Owner | Owner Name on Record |
| Last Sale | $338,200 (Dec 2012) |
| Tax Bill | $5,537 (2024) |
| Deeds & Mortgages | Jun 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-134-0604-1 |
| Primary APN | 0709-134-0604-1 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,134 sqft Living Area |
| 1st Floor Area | 567 sqft |
| 2nd Floor Area | 567 sqft |
| Basement Area | 567 sqft |
| Flooring | Wood |
| Interior Walls | Plaster |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Traditional |
| Exterior Material | Wood |
| Construction Type | Wood |
| Foundation Type | Stone |
| Roof Material | Asphalt |
| Lot Area | 1,978 sqft (0.045 acres) |
| Lot Dimensions | 107 ft deep x 31 ft wide |
| Driveway | Driveway |
| Driveway Area | 60 sqft |
| Porch | Enclosed Porch |
| Porch Area | 59 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 945 WILLIAMSON ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53703-3549 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | HIS-TL, TR-V2 |
| Legal Description | ORIGINAL PLAT, BLK 154, SE 50 FT OF SW 1/2 OF LOT 8 & NE 4 FT OF NW 82 FT OF SW 1/2 OF LOT 8 |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 13 |
| Legal Subdivision | ORIGINAL PLAT, BLK 154, SE 50 FT OF SW |
| Legal Block | 154 |
| Legal Lot Number | 8 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 4 |
| Census Block | 4009 |
| Census Tract | 1901 |
Source: Dane County records, as of January 22, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on Record |
|---|---|
| Mailing Address | 1113 GRAEDEL CT, MADISON, WI 53704-1614 |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 3, 2012 · Amount on Record |
| Deed Sale | Dec 3, 2012 · Amount on Record |
| Deed Document Number | 4938047 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 945 WILLIAMSON ST, MADISON, WI 53703-3549 |
| Transaction Type | Mortgage |
| Record Updated | Sep 8, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0005602217 |
|---|---|
| Date | Jun 17, 2020 |
| Instrument | 5602217 |
| Name | UNION FEDERAL SAVINGS & LOAN |
|---|---|
| Type | Lending Institution |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Jul 1, 2045 |
| Rate Type | Fixed Rate |
|---|
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 | $317,500 (+7.99%) Land $110,000 Building $207,500 | ||
| 2024 | $5,537.00 (+2.31%) | $317,500 | |
| 2023 | $294,000 Land $110,000 Building $184,000 | ||
| 2022 | $5,412.00 |
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 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.
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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