Benton County property record for 307 4th Ave, Keystone, IA 52249
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,441 sqft · built 1920 |
| Lot Size | 0.162 acres (7,100 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $235,000 (Jun 2022) |
| Tax Bill | $2,810 (2024) |
| Deeds & Mortgages | Jun 2022 Mortgage Jun 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 09015000 |
| Primary APN | 09015000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,441 sqft Living Area |
| 1st Floor Area | 416 sqft |
| Basement Area | 710 sqft |
| Finished Basement | 325 sqft |
| Flooring | Hardwood |
| Interior Walls | Plaster |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1920 |
|---|---|
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Foundation Type | Block |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 7,100 sqft (0.162 acres) |
| Lot Dimensions | 142 ft deep x 50 ft wide |
| Garage Type | Detached |
| Garage Area | 1,464 sqft |
| Parking Spaces | 6 Parking Spaces |
| Porch | Enclosed Porch |
| Porch Area | 80 sqft |
| Deck Area | 336 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 307 4TH AVE |
|---|---|
| City | KEYSTONE |
| State | IA |
| Zip | 52249-9509 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | F HAMANNS 1ST ADD LOT 1 BLK 3 |
| Legal Subdivision | HAMMANS |
| Legal Block | 3 |
| Legal Lot Number | 1 |
| Jurisdiction | BENTON IA |
| Township / Civil Division | KANE |
| Census Block Group | 3 |
| Census Block | 3057 |
| Census Tract | 960600 |
Source: Benton County records, as of September 29, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 307 4TH AVE, KEYSTONE, IA 52249-9509 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jun 29, 2022 | Deed of Trust, Mortgage · Conventional Mortgage GREENSTATE CU |
| Jun 29, 2022 | Warranty Deed, Transfer · Conventional Mortgage GREENSTATE CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 29, 2022 · Amount on Record |
| Deed Sale | Jun 29, 2022 · Amount on Record |
| Prior Sale | Oct 3, 2005 · Amount on Record |
| Deed Document Number | 22-2988 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BENTON IA |
| Property Address | 307 4TH AVE, KEYSTONE, IA 52249-9509 |
| Transaction Type | Mortgage |
| Record Updated | Oct 17, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0000222990 |
|---|---|
| Date | Jun 29, 2022 |
| Instrument | 22-2990 |
| Name | GREENSTATE CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 120 Months |
| Due | Jul 5, 2032 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BENTON IA |
| Recording Date | Jun 29, 2022 |
| Property Address | 307 4TH AVE, KEYSTONE, IA 52249-9509 |
| Document Number | 0000222988 |
| Instrument Date | Jun 17, 2022 |
| Instrument | 22-2988 |
| Transaction Type | Transfer |
| Record Updated | Jun 1, 2023 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $375.20 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 307 4TH AVE, KEYSTONE, IA 52249-9509 |
| Document Number | 0000222989 |
|---|---|
| Date | Jun 29, 2022 |
| Instrument | 22-2989 |
| Name | GREENSTATE CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 5, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Jul 5, 2032 |
| Change Frequency | Annually |
| Min Rate At Change | 5.38% |
| Max Rate At Change | 5.38% |
| Index | 1-Year CMT |
Source: Benton County assessment roll, as of May 1, 2025
| Type | Name |
|---|---|
| State | Iowa |
| County | Benton County |
| Municipality | Keystone City |
| Unified School District | Benton Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $237,500 (+1.24%) Land $14,300 Building $223,200 | $237,500 (+1.24%) Land $14,300 Building $223,200 | |
| 2024 | $2,810.00 (+51.56%) | ||
| 2023 | $234,600 (+55.98%) Land $14,000 Building $220,600 | $234,600 (+55.98%) Land $14,000 Building $220,600 | |
| 2022 | $1,854.00 Homeowner's exemption | $150,400 Land $11,200 Building $139,200 | |
| 2021 | $150,400 Land $11,200 Building $139,200 |
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 22, 2023
| 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 | Not rated no burnable land within 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 | KEYSTONE WATER SUPPLY serves 599 people · EPA ID IA0640030 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2026 |
| Lead | 6 ppb (2022–2024) action level 15 ppb |
| Water Quality | Treatment failure resolved · May 2021 Nitrite resolved · Apr 2021 |
|---|---|
| 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 212 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| Keystone Communications Fiber | 250 / 250 |
| GigFire Fixed Wireless | 150 / 130 |
| T-Mobile Fixed Wireless | 100 / 20 |
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