Butler County property record for 21457 Walnut Ave, Shell Rock, IA 50670
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,832 sqft · built 2004 |
| Lot Size | 2.1 acres (91,476 sqft) |
| Owner | Individual Name on File |
| Last Sale | $245,000 (Apr 2010) |
| Tax Bill | $5,474 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0835151005 |
| Primary APN | 0835151005 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,832 sqft Living Area |
| Basement Area | 1,832 sqft |
| Finished Basement | 1,200 sqft |
| Unfinished Basement | 632 sqft |
| Flooring | Hardwood |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2004 |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 91,476 sqft (2.1 acres) |
| Garage Type | Mixed |
| Garage Area | 1,552 sqft |
| Parking Spaces | 5 Parking Spaces |
| Porch | Slab |
| Porch Area | 392 sqft |
| Patio Area | 240 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Septic |
| Water Source | Well |
| Street Address | 21457 WALNUT AVE |
|---|---|
| City | SHELL ROCK |
| State | IA |
| Zip | 50670-9716 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | RIVERFRONT TRAIL SUB- DIV LOT 5 35 92 15 |
| Legal Range | 15W |
| Legal Township | 92N |
| Legal Section | 35 |
| Legal Subdivision | RIVERFRONT TRAIL |
| Legal Lot Number | 5 |
| Jurisdiction | BUTLER IA |
| Township / Civil Division | BUTLER |
| Census Block Group | 2 |
| Census Block | 2148 |
| Census Tract | 70100 |
21457 Walnut Ave is owned and occupied by an individual who bought it in April 2010.
Source: Butler County records, as of September 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21457 WALNUT AVE, SHELL ROCK, IA 50670-9716 |
| 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 Sale | Apr 16, 2010 · Amount on File |
| Deed Sale | Apr 16, 2010 · Amount on File |
| Deed Document Number | 20101425 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 21457 Walnut Ave was $5,474 with a homeowner's exemption, up 7.8% from the year before.
Source: Butler County assessment roll, as of April 30, 2026
| Type | Name |
|---|---|
| State | Iowa |
| County | Butler County |
| Unified School District | Waverly-Shell Rock Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,474.00 (+7.76%) Homeowner's exemption | $476,650 Land $76,900 Building $399,750 | $476,650 Land $76,900 Building $399,750 |
| 2024 | $5,080.00 | ||
| 2023 | $426,330 (+16.76%) Land $54,400 Building $371,930 | $426,330 Land $54,400 Building $371,930 | |
| 2022 | $4,708.00 Homeowner's exemption | $365,140 Land $54,400 Building $310,740 | |
| 2021 | $365,140 Land $54,400 Building $310,740 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21457 Walnut Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective December 16, 2020 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 24 (1998–2018) |
| Claims Outside the SFHA | 8 of 24 |
| Most Recent Claim | Sep 2018 · rainfall accumulation |
| Claims by Event |
|
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 21457 Walnut Ave is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 49% of Iowa |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 8 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Butler-Bremer Mutual Telephone Company Fiber | 1,000 / 1,000 |
| GigFire Fixed Wireless | 150 / 130 |
5G and 4G LTE (outdoors only)
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