Warren County property record for 3870 Irwin Simpson Rd, Mason, OH 45040
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,422 sqft · built 1984 |
| Lot Size | 0.271 acres (11,825 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $301,500 (Jun 2024) |
| Tax Bill | $4,328 (2025) |
| Deeds & Mortgages | Jul 2022 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-21-305-015-0 |
| Primary APN | 16-21-305-015-0 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Plumbing Fixtures | 8 Plumbing Fixtures |
| Building Area | 1,422 sqft Living Area |
| Gross Area | 1,734 sqft |
| 1st Floor Area | 18 sqft |
| Basement Area | 468 sqft |
| Finished Basement | 468 sqft |
| Family Room | Family Room |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | Split Level |
| Exterior Material | Combination |
| Construction Type | Frame |
| Lot Area | 11,825 sqft (0.271 acres) |
| Garage Type | Attached |
| Garage Area | 312 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Patio Area | 120 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Heat Pump |
| Heating Fuel | Electric |
| Account Number | 929417 |
|---|---|
| Street Address | 3870 IRWIN SIMPSON RD |
| City | MASON |
| State | OH |
| Zip | 45040-9474 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRAILS 3 LOT 113 |
| Legal Range | 2 |
| Legal Township | 4 |
| Legal Section | 21 |
| Legal Subdivision | TRAILS 3 |
| Legal Block | 17 |
| Legal Lot Number | 113 |
| Jurisdiction | WARREN OH |
| Township / Civil Division | DEERFIELD |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 32003 |
Source: Warren County records · APN 16-21-305-015-0
Assessment roll updated February 9, 2026 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3870 IRWIN SIMPSON RD, MASON, OH 45040-9474 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Remainderman |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 25, 2024 · Amount on Record |
| Deed Sale | Jun 25, 2024 · Amount on Record |
| Prior Sale | Aug 29, 2001 · Amount on Record |
| Deed Document Number | 202413531 |
| Prior Transfer Date | Aug 14, 2006 |
| Prior Transfer Doc | 0042660702 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WARREN OH |
| Property Address | 3870 IRWIN SIMPSON RD, MASON, OH 45040-9474 |
| Transaction Type | Mortgage |
| Record Updated | Aug 15, 2022 |
| Name | Verified Name |
|---|---|
| Address | 3870 IRWIN SIMPSON RD, MASON, OH 45040-9474 |
| Document Number | 0000024530 |
|---|---|
| Date | Jul 28, 2022 |
| Instrument | 2022-024530 |
| Name | 1ST NATIONAL BANK |
|---|---|
| Type | Bank |
| Address | LEBANON, OH 45036 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 362 Months |
| Due | Sep 01, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
Source: Warren County records · Assessment roll updated February 9, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | Ohio |
| County | Warren County |
| County Subdivision | Deerfield Township |
| Unified School District | Kings Local School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,328.00 (+11.86%) | $83,810 (+47.69%) Land $24,500 Building $59,310 | $239,460 (+47.7%) Land $70,000 Building $169,460 |
| 2024 | $3,869.00 (+16.64%) | ||
| 2023 | $3,317.00 (+85.93%) Homeowner's exemption | $56,746 (-) Land $12,915 Building $43,831 | |
| 2022 | $1,784.00 Homeowner's exemption | $56,746 Land $12,915 Building $43,831 | $162,130 (-) Land $36,900 Building $125,230 |
| 2021 | $162,130 Land $36,900 Building $125,230 |
Source: FEMA National Flood Hazard Layer as of June 25, 2025 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 9 in force |
| Wildfire Risk | Low lower than 96% of the US · lower than 81% of Ohio |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Cincinnati Bell Fiber | 3,000 / 3,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Based on FCC filings for 405 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | WARREN COUNTY serves 99,000 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2025 |
| Lead | 1 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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