Ingham County property record for 521 Okemos St, Mason, MI 48854 · Last verified July 2026
| Property Type | Office Building |
|---|---|
| Details | 5,032 sqft · built 1992 |
| Lot Size | 1.46 acres (63,598 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $280,000 (Nov 2006) |
| Tax Bill | $15,057 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 33-19-10-04-177-002 |
| Primary APN | 33-19-10-04-177-002 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 5,032 sqft Total Area |
| 1st Floor Area | 5,032 sqft |
| Flooring | Ceramic Tile |
| Interior Walls | Wood |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 2000 |
| Exterior Material | Brick Veneer |
| Fire Resistance | Wood or Wood & Steel Frame |
| Roof Material | Composition Shingle |
| Lot Area | 63,598 sqft (1.46 acres) |
| Heating System | HVAC |
|---|---|
| Sewer | Municipal |
| Street Address | 521 OKEMOS ST |
|---|---|
| City | MASON |
| State | MI |
| Zip | 48854-1224 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Legal Description | BEG AT PT ON EW 1/4 LN 1392.FT E OF W 1/4 COR OF SEC 4, N 300 FT, E 100 FT,S 150 FT, E 100 FT, S 50 FT, E PLL WITH EW 1/4 |
| Legal Range | 01W |
| Legal Township | 02N |
| Legal Section | 04 |
| Legal Subdivision | OKEMOS |
| Jurisdiction | INGHAM MI |
| Township / Civil Division | MASON |
| Census Block Group | 5 |
| Census Block | 5001 |
| Census Tract | 6301 |
Source: Ingham County records · APN 33-19-10-04-177-002
Assessment roll updated July 14, 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 | PO BOX 316, MASON, MI 48854-0316 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 02, 2006 · Amount on Record |
| Deed Sale | Nov 02, 2006 · Amount on Record |
| Deed Document Number | 200655682 |
| Deed Book / Page | 3242 / 821 |
| Record Updated | Sep 20, 2026 |
Source: Ingham County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Michigan |
| County | Ingham County |
| Municipality | Mason City |
| Unified School District | Mason 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 | $270,460 (+9.01%) Land $79,500 Building $190,960 | $540,920 (+9.01%) Land $159,000 Building $381,920 | |
| 2025 | $15,057.00 (+9.63%) | $248,110 (+14.81%) Land $79,500 Building $168,610 | $496,220 (+14.81%) Land $159,000 Building $337,220 |
| 2023 | $216,110 Land $63,600 Building $152,510 | $432,220 Land $127,200 Building $305,020 | |
| 2021 | $13,734.00 |
Source: FEMA National Flood Hazard Layer, Ingham County (26065C), updated July 2, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 260650063015, refreshed September 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 |
| Nearby Flood Policies | 2 in force |
| 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; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 145 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Surf Air Wireless | Fiber | 8,000 / 8,000 |
| Xfinity | Cable | 2,000 / 250 |
| WOW Internet, Cable & Phone | Cable | 1,200 / 50 |
| Mercury Broadband | Fixed Wireless (licensed-by-rule) | 150 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: Verizon, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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