Dane County property record for 509 Island Dr, Deforest, WI 53532
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.396 acres (17,250 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $9,798 (2025) |
| Deeds & Mortgages | Jun 2022 Mortgage Oct 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 0910-183-6661-0 |
| Primary APN | 0910-183-6661-0 |
|---|
| Lot Area | 17,250 sqft (0.396 acres) |
|---|
| Street Address | 509 ISLAND DR |
|---|---|
| City | DEFOREST |
| State | WI |
| Zip | 53532-3220 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUNNYBROOK LOT 81 |
| Legal Range | 10 |
| Legal Township | 09 |
| Legal Section | 18 |
| Legal Subdivision | SUNNYBROOK |
| Legal Block | 66 |
| Legal Lot Number | 81 |
| Jurisdiction | DANE WI |
| Township / Civil Division | DEFOREST |
| Census Block Group | 2 |
| Census Block | 2025 |
| Census Tract | 13302 |
509 Island Dr is owner-occupied and held in a trust since October 2017.
Source: Dane County records, as of January 22, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 509 ISLAND DR, DEFOREST, WI 53532-3220 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jun 16, 2022 | Deed of Trust, Mortgage · Conventional Mortgage DMB COMMUNITY BANK |
| Oct 5, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Oct 5, 2017 |
| Transfer Doc | 0005362525 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Property Address | 509 ISLAND DR, DEFOREST, WI 53532-3220 |
| Transaction Type | Mortgage |
| Record Updated | May 1, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0005841405 |
|---|---|
| Date | Jun 16, 2022 |
| Instrument | 5841405 |
| Name | DMB COMMUNITY BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Oct 5, 2017 |
| Property Address | 509 ISLAND DR, DEFOREST, WI 53532-3220 |
| Document Number | 0005362525 |
| Instrument Date | Sep 25, 2017 |
| Instrument | 5362525 |
| Transaction Type | Transfer |
| Record Updated | Oct 31, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
The 2025 property tax bill for 509 Island Dr was $9,798 with a homeowner's exemption.
Source: Dane County assessment roll, as of January 1, 2025
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Dane County |
| Municipality | DeForest Village |
| Unified School District | DeForest Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $9,798.00 Homeowner's exemption | $573,100 Land $99,500 Building $473,600 | $622,800 |
| 2023 | $514,200 Land $94,200 Building $420,000 | $544,800 | |
| 2022 | $8,693.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 509 Island 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 | 3 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 509 Island 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 | DEFOREST WATERWORKS serves 10,500 people · EPA ID WI1130221 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Dec 2023 |
| Lead | 6 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 150 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 1,000 / 1,000 |
| Spectrum Cable | 1,000 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Bertram Communications, LiteWire.
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