Dane County property record for 121 Nautilus Dr, Madison, WI 53705
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,452 sqft · built 1965 |
| Lot Size | 0.289 acres (12,576 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $570,000 (Jul 2024) |
| Tax Bill | $11,242 (2025) |
| Deeds & Mortgages | Sep 2026 Mortgage Mar 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 0708-244-0903-5 |
| Primary APN | 0708-244-0903-5 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,452 sqft Living Area |
| Gross Area | 3,987 sqft |
| 1st Floor Area | 1,752 sqft |
| Basement Area | 1,752 sqft |
| Finished Basement | 700 sqft |
| Unfinished Basement | 1,052 sqft |
| Family Room | Family Room |
| Flooring | Wood |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Foundation Type | Concrete |
| Roof Type | Flat |
| Roof Material | Composition Shingle |
| Lot Area | 12,576 sqft (0.289 acres) |
| Terrain | Wooded |
| View / Lot | Traffic |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Driveway | Concrete Driveway |
| Driveway Area | 304 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 320 sqft |
| Cooling System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 121 NAUTILUS DR |
|---|---|
| City | MADISON |
| State | WI |
| Zip | 53705-4329 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | SR-C1 |
| Legal Description | SIXTH ADDITION TO FAIRCREST, LOT 167. |
| Legal Range | 08E |
| Legal Township | 07N |
| Legal Section | 24 |
| Legal Quarter | 4 |
| Legal Subdivision | SIXTH ADDITION TO FAIRCREST |
| Legal Lot Number | 167 |
| Jurisdiction | DANE WI |
| Township / Civil Division | MADISON |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 202 |
121 Nautilus Dr is owned and occupied by two individuals who bought it in July 2024.
Source: Dane County records, as of October 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 121 NAUTILUS DR, MADISON, WI 53705-4329 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Husband and Wife |
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 |
|---|---|
| Sep 22, 2026 | Deed of Trust, Mortgage · Conventional Mortgage SUMMIT CREDIT UNION |
| Mar 13, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 23, 2024 · Amount on File |
| Deed Sale | Jul 23, 2024 · Amount on File |
| Deed Document Number | 20245975728 |
| Prior Transfer Date | Mar 10, 2017 |
| Prior Transfer Doc | 0005311594 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Sep 22, 2026 |
| Property Address | 121 NAUTILUS DR, MADISON, WI 53705-4329 |
| Document Number | 0006126948 |
| Instrument Date | Sep 4, 2026 |
| Instrument | 20266126948 |
| Transaction Type | Mortgage |
| Record Updated | Oct 5, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Name | Verified Name |
|---|---|
| Address | 121 NAUTILUS DR, MADISON, WI 53705-4329 |
| Document Number | 0006126948, |
|---|---|
| Date | Sep 22, 2026 |
| Instrument | 20266126948 |
| Name | SUMMIT CREDIT UNION |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 144 Months |
| Due | Sep 25, 2038 |
| Rate Type | Fixed Rate |
|---|---|
| Initial Type | Fixed Rate |
| Max Rate | -1% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | DANE WI |
| Recording Date | Mar 13, 2017 |
| Property Address | 121 NAUTILUS DR, MADISON, WI 53705-4329 |
| Document Number | 0005311594 |
| Instrument Date | Mar 10, 2017 |
| Instrument | 5311594 |
| Transaction Type | Transfer |
| Record Updated | Apr 4, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
The 2025 property tax bill for 121 Nautilus Dr was $11,242, up 16.4% from the year before.
Source: Dane County assessment roll, as of March 16, 2026
| 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 | $11,242.00 (+16.38%) Homeowner's exemption | $622,200 Land $169,600 Building $452,600 | |
| 2024 | $9,660.00 | $565,600 (+6.4%) | |
| 2023 | $528,600 Land $158,500 Building $370,100 | $531,577 | |
| 2022 | $8,666.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 121 Nautilus Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2018.
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 | 1 in force |
| Nearby Flood Claims | 2 (2018–2020) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Jul 2020 · rainfall accumulation |
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 121 Nautilus 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 231 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| LiteWire Fixed Wireless | 100 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
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