Warren County property record for 101 Williams St, Mason, OH 45040
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2.5 ba · 1,624 sqft · built 1989 |
| Lot Size | 0.286 acres (12,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $11,000 (Mar 1988) |
| Tax Bill | $4,195 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-36-258-022-0 |
| Primary APN | 16-36-258-022-0 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Plumbing Fixtures | 10 Plumbing Fixtures |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,624 sqft Living Area |
| Gross Area | 2,196 sqft |
| 1st Floor Area | 1,624 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | Duplex Single |
| Exterior Material | Brick/Stone |
| Construction Type | Brick |
| Lot Area | 12,500 sqft (0.286 acres) |
| Lot Dimensions | 100 ft deep x 125 ft wide |
| Garage Type | Attached |
| Garage Area | 572 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 200 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Account Number | 1144987 |
|---|---|
| Street Address | 101 WILLIAMS ST |
| City | MASON |
| State | OH |
| Zip | 45040-1556 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | DILLEY LOT 12-16 |
| Legal Subdivision | DILLEY |
| Legal Block | 987 |
| Legal Lot Number | 12-16 |
| Jurisdiction | WARREN OH |
| Township / Civil Division | MASON |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 31908 |
Source: Warren County records · APN 16-36-258-022-0
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 | 3017 ASH CT, MASON, OH 45040-1400 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 01, 1988 · Amount on Record |
| Deed Sale | Mar 01, 1988 · Amount on Record |
| Prior Sale | Mar 01, 1988 · Amount on Record |
| Last Transfer Date | Apr 18, 2011 |
| Transfer Doc | 0053150129 |
| Record Updated | Jun 08, 2026 |
Source: Warren County records · Assessment roll updated February 9, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | Ohio |
| County | Warren County |
| Municipality | Mason City |
| Unified School District | Mason City School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,195.00 (-0.5%) | $101,480 (+43.74%) Land $49,220 Building $52,260 | $289,940 (+43.73%) Land $140,630 Building $149,310 |
| 2024 | $4,216.00 (+21.46%) | ||
| 2023 | $3,471.00 (+1.31%) | $70,602 (-) Land $24,217 Building $46,385 | |
| 2022 | $3,426.00 | $70,602 Land $24,217 Building $46,386 | $201,720 (-) Land $69,190 Building $132,530 |
| 2021 | $201,720 Land $69,190 Building $132,530 |
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 | 1 in force |
| Nearby Flood Claims | 2 (2018–2025) |
| Most Recent Claim | Apr 2025 · river or lake flooding |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 |
Based on FCC filings for 292 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 | CINCINNATI PUBLIC WATER SYSTEM serves 800,000 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2024 |
| Lead | 2 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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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