Dane County property record for 505 Science Dr, Madison, WI 53711
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 9,502 sqft · built 1988 |
| Lot Size | 10.9 acres (477,461 sqft) |
| Owner | Company Name on File |
| Last Sale | $7,970,000 (Jun 1997) |
| Tax Bill | $298,671 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-301-0608-8 |
| Primary APN | 0709-301-0608-8 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 9,502 sqft Total Area |
| 1st Floor Area | 73,323 sqft |
| Year Built | Built 1988 |
|---|---|
| Exterior Material | Brick |
| Lot Area | 477,461 sqft (10.9 acres) |
| Total Buildings | 7 Buildings |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 505 SCIENCE DR |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53711-1093 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Local Zoning Code | SE |
| Legal Description | CERTIFIED SURVEY MAP NO 14651 AS RECORDED IN DANE COUNTY REGISTER OF DEEDS IN VO L 101 PAGE 295 OF CERTIFIED SURVEYS, LOT 1 |
| Legal Range | 09E |
| Legal Township | 07N |
| Legal Section | 30 |
| Legal Lot Number | 1 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 402 |
505 Science Dr, a commercial property, is owned by a company that bought it in June 1997 and is owner-occupied.
Source: Dane County records, as of January 22, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 505 S ROSA RD STE 201, 201, MADISON, WI 53719-1277 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 1, 1997 · Amount on File |
| Deed Sale | Jun 1, 1997 · Amount on File |
| Deed Document Number | 0092866493 |
| Record Updated | Jun 8, 2026 |
Source: Dane County assessment roll, as of January 1, 2024
| 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 |
|---|---|---|---|
| 2024 | $298,671.00 | $16,876,000 (-) Land $2,280,000 Building $14,596,000 | $16,876,000 |
| 2023 | $16,876,000 Land $2,280,000 Building $14,596,000 | ||
| 2022 | $332,387.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 505 Science Dr in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 505 Science Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 94% 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 496 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| LiteWire Fixed Wireless | 100 / 25 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Four Lakes Broadband.
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