Montgomery County property record for 643 Warren St, Dayton, OH 45409
| Property Type | Parking Garage, Parking Structure |
|---|---|
| Lot Size | 0.156 acres (6,830 sqft) |
| Owner | Owner Name on File |
| Last Sale | $125,500 (Jul 1999) |
| Tax Bill | $1,298 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | R72 01811 0054 |
| Primary APN | R72 01811 0054 |
|---|
| Lot Area | 6,830 sqft (0.156 acres) |
|---|
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 643 WARREN ST |
|---|---|
| City | DAYTON |
| State | OH |
| Zip | 45409-2934 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Parking Garage, Parking Structure |
| Legal Description | 2461 PT 30 YR TIF 100% 2023-2052 FT 2053 |
| Legal Lot Number | 54 |
| Jurisdiction | MONTGOMERY OH |
| Township / Civil Division | DAYTON |
| Census Block Group | 1 |
| Census Block | 1063 |
| Census Tract | 3404 |
The current owner of 643 Warren St bought it in July 1999.
Source: Montgomery County records, as of January 26, 2026
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 110 N MAIN ST STE 1250, 1250, DAYTON, OH 45402-3726 |
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 | Jul 7, 1999 · Amount on File |
| Deed Sale | Jul 7, 1999 · Amount on File |
| Deed Document Number | 99-0444A09 |
| Deed Book / Page | 99-0444 / A09 |
| Prior Transfer Date | Jul 6, 1999 |
| Prior Transfer Doc | 0000444A09 |
| Record Updated | Jun 8, 2026 |
Source: Montgomery County assessment roll, as of January 1, 2025
| Type | Name |
|---|---|
| State | Ohio |
| County | Montgomery County |
| Municipality | Dayton City |
| Unified School District | Dayton City School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $10,520 Land $10,520 | ||
| 2024 | $1,298.00 (+10.28%) | ||
| 2023 | $1,177.00 (-5%) | $10,520 (-) Land $10,520 | $30,050 Land $30,050 |
| 2022 | $1,239.00 | $10,520 Land $10,520 | |
| 2020 | $30,050 Land $30,050 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 643 Warren St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective June 21, 2024
| 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.
The area around 643 Warren St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | DAYTON PUBLIC WATER SYSTEM serves 141,407 people · EPA ID OH5703512 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2024 |
| Lead | 470 ppb (2024–2026) 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, 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 651 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| altafiber Network Solutions Fiber | 2,000 / 2,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · Fiber, DSL in parts of the area | 100 / 20 |
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