Shiawassee County property record for 523 E Mason St, Owosso, MI 48867 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.22 acres (9,583 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $35,000 (Mar 2012) |
| Tax Bill | $2,546 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 050-668-000-033-00 |
| Primary APN | 050-668-000-033-00 |
|---|
| Lot Area | 9,583 sqft (0.22 acres) |
|---|
| Street Address | 523 E MASON ST |
|---|---|
| City | OWOSSO |
| State | MI |
| Zip | 48867-3035 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | E 12 LOT 25 & W 14 LOT 26 AL & BO WILLIAMS SUBDIV OUTLOTS 8 & 9 |
| Legal Subdivision | WILLIAMS SUBDIV |
| Legal Lot Number | 25-26 |
| Jurisdiction | SHIAWASSEE MI |
| Township / Civil Division | OWOSSO |
| Census Block Group | 3 |
| Census Block | 3016 |
| Census Tract | 30500 |
Source: Shiawassee County records · APN 050-668-000-033-00
Assessment roll updated July 16, 2026 · Last verified July 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 | 523 E MASON ST, OWOSSO, MI 48867-3035 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 26, 2012 · Amount on Record |
| Deed Sale | Mar 26, 2012 · Amount on Record |
| Prior Sale | Jun 13, 2011 · Amount on Record |
| Deed Book / Page | 1169 / 570 |
| Record Updated | Sep 20, 2026 |
Source: Shiawassee County records · Assessment roll updated July 16, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Michigan |
| County | Shiawassee County |
| Municipality | Owosso City |
| Unified School District | Owosso Public Schools (KG - 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 |
|---|---|---|---|
| 2026 | $100,100 (+12.98%) | $200,200 (+12.98%) | |
| 2025 | $2,546.00 (+11.08%) Homeowner's exemption | $88,600 (+27.85%) | $177,200 (+27.85%) |
| 2023 | $2,292.00 Homeowner's exemption | $69,300 | $138,600 |
Source: FEMA National Flood Hazard Layer, Shiawassee County (26155C), updated April 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 471 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Frontier | Fiber | 5,000 / 5,000 |
| DayStarr | Fiber | 2,500 / 2,500 |
| Spectrum | Cable | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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