Dane County property record for 646 Knickerbocker St, Madison, WI 53711 · Last verified February 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,598 sqft · built 1930 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | 2 Owner Names on File |
| Last Sale | $254,100 (Jul 2009) |
| Tax Bill | $10,467 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-281-0724-6 |
| Primary APN | 0709-281-0724-6 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,598 sqft Living Area |
| 1st Floor Area | 834 sqft |
| 2nd Floor Area | 764 sqft |
| Basement Area | 676 sqft |
| Flooring | Wood |
| Interior Walls | Plaster |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Traditional |
| Exterior Material | Aluminum/Vinyl |
| Foundation Type | Concrete |
| Roof Material | Asphalt |
| Lot Area | 4,800 sqft (0.11 acres) |
| Lot Dimensions | 120 ft deep x 40 ft wide |
| Garage Type | Detached |
| Garage Area | 360 sqft |
| Driveway | Driveway |
| Driveway Area | 130 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 96 sqft |
| Cooling System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 646 KNICKERBOCKER ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53711-1849 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PLAT OF WINGRA, LOT 11, BLOCK 8 |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 28 |
| Legal Subdivision | PLAT OF WINGRA |
| Legal Block | 8 |
| Legal Lot Number | 11 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 1000 |
Source: Dane County records · APN 0709-281-0724-6
Assessment roll updated January 1, 2025 · Last verified February 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Owner Names on File |
|---|---|
| Mailing Address | 646 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Occupancy | Owner Occupied |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 30, 2009 · Amount on Record |
| Deed Sale | Jul 30, 2009 · Amount on Record |
| Deed Document Number | 4579816 |
| Record Updated | Jun 08, 2026 |
Source: Dane County records · Assessment roll updated January 1, 2025 · Last verified February 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Dane County |
| Municipality | Madison City |
| Unified School District | Madison Metropolitan School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $611,200 (+10.01%) Land $171,500 Building $439,700 | ||
| 2024 | $10,467.00 (+7.51%) | $611,200 | |
| 2023 | $555,600 Land $137,200 Building $418,400 | ||
| 2022 | $9,736.00 |
Source: FEMA National Flood Hazard Layer, Dane County (55025C), updated September 20, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 550250010002, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 410 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Spectrum | Cable | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 300 / 20 |
| ResTech Services | Fixed Wireless (unlicensed) | 100 / 25 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: AT&T, Spectrum. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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