Dane County property record for 644 Science Dr, Madison, WI 53711
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 56,427 sqft · built 1994 |
| Lot Size | 6.34 acres (276,258 sqft) |
| Owner | Company Name on Record |
| Last Sale | $87,723 (Apr 1994) |
| Tax Bill | $139,495 (2024) |
| Deeds & Mortgages | Jul 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 0709-301-0710-1 |
| Primary APN | 0709-301-0710-1 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 56,427 sqft |
| 1st Floor Area | 18,809 sqft |
| 2nd Floor Area | 18,809 sqft |
| Year Built | Built 1994 |
|---|---|
| Lot Area | 276,258 sqft (6.34 acres) |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 644 SCIENCE DR |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53711-1073 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Local Zoning Code | SE |
| Legal Description | UNIVERSITY RESEARCH PARK 1ST ADDITION, LOT 20, PRT OF LOTS 18 & 19 DESC AS FOL: BEG NW COR LOT 20, TH S 69 DEG 28 MIN 18 SEC |
| Legal Range | 09 |
| Legal Township | 07 |
| Legal Section | 30 |
| Legal Subdivision | UNIVERSITY RESEARCH PARK 1ST ADDITION |
| Legal Lot Number | 20 19 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 402 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 505 S ROSA RD STE 201, 201, MADISON, WI 53719-1277 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 1, 1994 · Amount on Record |
| Deed Sale | Apr 1, 1994 · Amount on Record |
| Deed Document Number | 0028174006 |
| Record Updated | Jun 8, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Jul 1, 2019 |
| Property Address | 644 SCIENCE DR, MADISON, WI 53711-1073 |
| Instrument Date | Jun 27, 2019 |
| Instrument | 5500112 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 510 CHARMANY DR #250 MADISON WI 537191267, 250, MADISON, WI 53719-1267 |
| Document Number | 0005500112 |
|---|---|
| Date | Jul 1, 2019 |
| Instrument | 5500112 |
| Name | FIRST BUSN BK |
|---|---|
| Type | Bank |
| Address | 401 CHARMANY DR, MADISON, WI 53719-1272 |
| 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 | $7,884,500 (-) Land $1,460,000 Building $6,424,500 | ||
| 2024 | $139,495.00 (-6.47%) | $7,884,500 | |
| 2023 | $7,884,500 Land $1,460,000 Building $6,424,500 | ||
| 2022 | $149,144.00 |
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
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 97.9% of Wisconsin |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 39 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 |
| LiteWire Fixed Wireless · Fiber in parts of the area | 100 / 25 |
| AT&T Fixed Wireless · Fiber, DSL in parts of the area | 100 / 20 |
May also be available: Four Lakes Broadband, T-Mobile, TDS Telecom, Verizon.
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