Warren County property record for 3911 Irwin Simpson Rd, Mason, OH 45040
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,217 sqft · built 1979 |
| Lot Size | 0.228 acres (9,947 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $75,600 (Sep 1986) |
| Tax Bill | $4,656 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-21-302-008-0 |
| Primary APN | 16-21-302-008-0 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Plumbing Fixtures | 10 Plumbing Fixtures |
| Stories | 1 Story |
| Building Area | 1,217 sqft Living Area |
| 1st Floor Area | 90 sqft |
| Basement Area | 546 sqft |
| Finished Basement | 546 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Foundation Type | Concrete |
| Lot Area | 9,947 sqft |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 287 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Heat Pump |
| Heating Fuel | Electric |
| Account Number | 922803 |
|---|---|
| Old Parcel Number | 1621302008 |
| Street Address | 3911 IRWIN SIMPSON RD |
| City | MASON |
| State | OH |
| Zip | 45040-9754 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WOODFIELD SOUTH LOT# 64 |
| Legal Subdivision | WOODFIELD SOUTH |
| Legal Block | 302 |
| Legal Lot Number | 64 |
| Jurisdiction | WARREN OH |
| Township / Civil Division | DEERFIELD |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 32006 |
Source: Warren County records, as of February 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3911 IRWIN SIMPSON RD, MASON, OH 45040-9754 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 4, 1986 · Amount on Record |
| Deed Sale | Sep 4, 1986 · Amount on Record |
| Deed Document Number | 0000321777 |
| Record Updated | Jun 8, 2026 |
Source: Warren County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | Ohio |
| County | Warren County |
| County Subdivision | Deerfield Township |
| Unified School District | Kings Local School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,656.00 (+11.84%) | $90,797 (+26.78%) Land $24,500 Building $66,297 | $259,420 (+26.78%) Land $70,000 Building $189,420 |
| 2023 | $4,163.00 (+2.76%) Homeowner's exemption | $71,617 (-) Land $12,915 Building $58,702 | |
| 2022 | $4,051.00 Homeowner's exemption | $71,617 Land $12,915 Building $58,702 | $204,620 (-) Land $36,900 Building $167,720 |
| 2021 | $204,620 Land $36,900 Building $167,720 |
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 June 25, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 1 (2014) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jun 2014 · 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 |
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 | WARREN COUNTY serves 99,000 people · EPA ID OH8301512 |
|---|---|
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 405 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| altafiber Network Solutions Fiber | 3,000 / 3,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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