Dane County property record for 421 Sidney St, Madison, WI 53703
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,663 sqft · built 1917 |
| Lot Size | 0.091 acres (3,999 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $541,000 (Apr 2022) |
| Tax Bill | $9,876 (2024) |
| Deeds & Mortgages | Apr 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-124-0517-7 |
| Primary APN | 0709-124-0517-7 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,663 sqft Living Area |
| 1st Floor Area | 812 sqft |
| 2nd Floor Area | 851 sqft |
| Attic Area | 80 sqft |
| Basement Area | 851 sqft |
| Family Room | Family Room |
| Flooring | Wood |
| Interior Walls | Plaster |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1917 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Traditional |
| Exterior Material | Stucco |
| Foundation Type | Concrete |
| Roof Material | Asphalt |
| Lot Area | 3,999 sqft (0.091 acres) |
| Lot Dimensions | 100 ft deep x 40 ft wide |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Driveway | Driveway |
| Driveway Area | 109 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 378 sqft |
| Cooling System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 421 SIDNEY ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53703-1723 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | TR-C3 |
| Legal Description | NORTH SIDE SUBDIVISION, BLK 2, LOT 27 |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 12 |
| Legal Subdivision | NORTH SIDE SUBDIVISION |
| Legal Block | 2 |
| Legal Lot Number | 27 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 1802 |
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 | 421 SIDNEY ST, MADISON, WI 53703-1723 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 1, 2022 · Amount on Record |
| Deed Sale | Apr 1, 2022 · Amount on Record |
| Prior Sale | Aug 12, 2015 |
| Deed Document Number | 5823129 |
| Record Updated | Jun 8, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Apr 1, 2022 |
| Property Address | 421 SIDNEY ST, MADISON, WI 53703-1723 |
| Document Number | 0005823129 |
| Instrument Date | Mar 31, 2022 |
| Instrument | 5823129 |
| Transaction Type | Transfer |
| Record Updated | Apr 20, 2022 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,623.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 421 SIDNEY ST, MADISON, WI 53703-1723 |
| Document Number | 0005823130 |
|---|---|
| Date | Apr 1, 2022 |
| Instrument | 5823130 |
| Name | THOMPSON KANE & CO LLC |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $577,800 (+8%) Land $135,700 Building $442,100 | ||
| 2024 | $9,876.00 (+4.33%) | $577,800 | |
| 2023 | $535,000 Land $135,700 Building $399,300 | ||
| 2022 | $9,466.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 1 (2008) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jun 2008 · Severe Storms, Tornadoes, And Flooding |
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 | 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 449 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| LiteWire Fixed Wireless | 100 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
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