Dane County property record for 939 Derby Dr, Sun Prairie, WI 53590
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,288 sqft · built 1973 |
| Lot Size | 0.304 acres (13,242 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $6,897 (2025) |
| Deeds & Mortgages | Jul 2026 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 0811-041-4915-8 |
| Primary APN | 0811-041-4915-8 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,288 sqft Living Area |
| 1st Floor Area | 1,392 sqft |
| 2nd Floor Area | 896 sqft |
| Basement Area | 1,056 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 1973 |
| Architectural Style | Colonial |
| Lot Area | 13,242 sqft (0.304 acres) |
| Garage Type | Attached |
| Garage Area | 482 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Patio Area | 240 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Connected |
| Water Source | Commercial |
| Street Address | 939 DERBY DR |
|---|---|
| City | SUN PRAIRIE |
| State | WI |
| Zip | 53590-2407 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | SR4 |
| Legal Description | CARRIAGE HILL EAST LOT 155 |
| Legal Range | 11E |
| Legal Township | 08N |
| Legal Section | 04 |
| Legal Subdivision | CARRIAGE HILL EAST |
| Legal Block | 49 |
| Legal Lot Number | 155 |
| Jurisdiction | DANE WI |
| Township / Civil Division | SUN PRAIRIE |
| Census Block Group | 4 |
| Census Block | 4018 |
| Census Tract | 11600 |
939 Derby Dr is owned and occupied by an individual who acquired it in July 2026.
Source: Dane County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 939 DERBY DR, SUN PRAIRIE, WI 53590-2407 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 Transfer Date | Jul 23, 2026 |
| Transfer Doc | 0006115084 |
| Record Updated | Sep 20, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Jul 24, 2026 |
| Property Address | 939 DERBY DR, SUN PRAIRIE, WI 53590-2407 |
| Document Number | 0006115084 |
| Instrument Date | Jul 23, 2026 |
| Instrument | 20266115084 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
The 2025 property tax bill for 939 Derby Dr was $6,897.
Source: Dane County assessment roll, as of March 16, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Dane County |
| Municipality | Sun Prairie City |
| Unified School District | Sun Prairie Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $6,897.00 Homeowner's exemption | $349,700 Land $77,000 Building $272,700 | $396,600 |
| 2023 | $349,700 Land $77,000 Building $272,700 | $349,700 Land $77,000 Building $272,700 | |
| 2022 | $5,959.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 939 Derby Dr in Zone X, an area of minimal flood risk.
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 | 2 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.
Wildfire risk around 939 Derby 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 96% of the US · lower than 90% 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 | SUN PRAIRIE UTILITIES serves 39,300 people · EPA ID WI1130258 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2026 |
| Lead | 3 ppb (2023) action level 15 ppb |
| Water Quality | Fluoride resolved · Jan 2023 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 386 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 8,000 / 8,000 |
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| LiteWire Fixed Wireless | 100 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
| Bertram Communications Fixed Wireless | 100 / 20 |
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