Dane County property record for 818 O'Sheridan St, Madison, WI 53715
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,418 sqft · built 1889 |
| Lot Size | 0.2 acres (8,712 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $455,000 (Jun 2023) |
| Tax Bill | $7,971 (2024) |
| Deeds & Mortgages | Jun 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-261-0118-3 |
| Primary APN | 0709-261-0118-3 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,418 sqft Living Area |
| 1st Floor Area | 739 sqft |
| 2nd Floor Area | 679 sqft |
| Basement Area | 740 sqft |
| Family Room | Family Room |
| Flooring | Wood |
| Interior Walls | Plaster |
| Year Built | Built 1889 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Traditional |
| Exterior Material | Wood |
| Construction Type | Wood |
| Foundation Type | Stone |
| Roof Material | Asphalt |
| Lot Area | 8,712 sqft (0.2 acres) |
| Lot Dimensions | 132 ft deep x 66 ft wide |
| Porch | Enclosed Porch |
| Porch Area | 585 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 818 OSHERIDAN ST |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53715-2026 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | TR-C2 |
| Legal Description | MONONA. LOT 23 |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 26 |
| Legal Subdivision | MONONA |
| Legal Lot Number | 23 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 1300 |
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 |
|---|---|
| Mailing Address | 818 OSHERIDAN ST, MADISON, WI 53715-2026 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 23, 2023 · Amount on Record |
| Deed Sale | Jun 23, 2023 · Amount on Record |
| Prior Sale | Jun 6, 2013 · Amount on Record |
| Deed Document Number | 5908881 |
| Record Updated | Jun 8, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Jun 23, 2023 |
| Property Address | 818 OSHERIDAN ST, MADISON, WI 53715-2026 |
| Document Number | 0005908881 |
| Instrument Date | Jun 16, 2023 |
| Instrument | 5908881 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2023 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,365.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 11 LAKESHORE CT, MADISON, WI 53715-2023 |
| Document Number | 0005908882 |
|---|---|
| Date | Jun 23, 2023 |
| Instrument | 5908882 |
| Name | CANOPY MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 1, 2053 |
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 | $455,000 (+2.18%) Land $110,500 Building $344,500 | ||
| 2024 | $7,971.00 (-1.41%) | $455,000 | |
| 2023 | $445,300 (+8%) Land $101,400 Building $343,900 | ||
| 2022 | $8,085.00 (+1.43%) | $412,300 Land $93,900 Building $318,400 | |
| 2021 | $7,971.00 |
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 | 4 in force |
| Nearby Flood Claims | 3 (1978–2018) |
| Claims Outside the SFHA | 2 of 3 |
| Most Recent Claim | Sep 2018 · Severe Storms, Tornadoes, Straight-line Winds, Flooding, And Landslides |
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 322 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| 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 |
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