Dane County property record for 640 Knickerbocker St, Madison, WI 53711
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 2,194 sqft · built 1925 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $385,000 (Apr 2018) |
| Tax Bill | $10,005 (2024) |
| Deeds & Mortgages | Jan 2021 Mortgage Apr 2018 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-281-0726-2 |
| Primary APN | 0709-281-0726-2 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,194 sqft Living Area |
| 1st Floor Area | 996 sqft |
| 2nd Floor Area | 528 sqft |
| Basement Area | 816 sqft |
| Finished Basement | 670 sqft |
| Family Room | Family Room |
| Flooring | Wood |
| Interior Walls | Plaster |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1974 |
| Architectural Style | Bungalow |
| 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 | 180 sqft |
| Driveway | Driveway |
| Driveway Area | 285 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Enclosed Porch |
|---|---|
| Porch Area | 160 sqft |
| Deck Area | 180 sqft |
| Patio Area | 180 sqft |
| Cooling System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 640 KNICKERBOCKER ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53711-1849 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | TR-C2 |
| Legal Description | PLAT OF WINGRA, LOT 9, BLOCK 8 |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 28 |
| Legal Subdivision | PLAT OF WINGRA |
| Legal Block | 8 |
| Legal Lot Number | 9 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 1000 |
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 | Individual Name on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 640 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jan 13, 2021 | Deed of Trust, Mortgage · Conventional Mortgage NATIONSTAR MORTGAGE |
| Apr 18, 2018 | Deed, Transfer · Conventional Mortgage HOMESERVICES LENDING LLC |
| Nov 4, 2017 | Deed of Trust, Mortgage · Line of Credit UW CU |
| May 6, 2017 | Deed of Trust, Mortgage · Line of Credit UW CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 18, 2018 · Amount on Record |
| Deed Sale | Apr 18, 2018 · Amount on Record |
| Prior Sale | May 23, 2008 · Amount on Record |
| Deed Document Number | 5402706 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 640 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0005683492 |
|---|---|
| Date | Jan 13, 2021 |
| Instrument | 5683492 |
| Name | NATIONSTAR MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Feb 1, 2051 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Apr 18, 2018 |
| Property Address | 640 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Document Number | 0005402706 |
| Instrument Date | Apr 16, 2018 |
| Instrument | 5402706 |
| Transaction Type | Transfer |
| Record Updated | Jun 14, 2021 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,155.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 640 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Document Number | 0005402707 |
|---|---|
| Date | Apr 18, 2018 |
| Instrument | 5402707 |
| Name | HOMESERVICES LENDING LLC |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 640 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Document Number | 0005373048 |
| Instrument Date | Nov 4, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Dec 7, 2017 |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 640 KNICKERBOCKER ST MADISON WI 537111849, MADISON, WI 53711-1849 |
| Document Number | 0005373048 |
|---|---|
| Date | Nov 20, 2017 |
| Instrument | 5373048 |
| Name | UW CU |
|---|---|
| Type | Credit Union |
| Address | MADISON, WI 53744 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 19, 2047 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 640 KNICKERBOCKER ST, MADISON, WI 53711-1849 |
| Document Number | 0005325767 |
| Instrument Date | May 6, 2017 |
| Transaction Type | Mortgage |
| Record Updated | May 30, 2017 |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 640 KNICKERBOCKER ST MADISON WI 537111849, MADISON, WI 53711-1849 |
| Document Number | 0005325767 |
|---|---|
| Date | May 16, 2017 |
| Instrument | 5325767 |
| Name | UW CU |
|---|---|
| Type | Credit Union |
| Address | MADISON, WI 53744 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | May 15, 2047 |
| Rate Type | Adjustable 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 | $585,100 (+1%) Land $173,800 Building $411,300 | ||
| 2024 | $10,005.00 (+8.31%) | $585,100 | |
| 2023 | $531,900 Land $139,000 Building $392,900 | ||
| 2022 | $9,237.00 |
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 · 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 | 1 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 92% of Wisconsin |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 410 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| LiteWire Fixed Wireless | 100 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures