LaSalle County property record for 402 Mason St, Ottawa, IL 61350
| Property Type | Single Family Home |
|---|---|
| Details | 900 sqft · built 1969 |
| Lot Size | 0.2 acres (8,712 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $4,139 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 22-13-300-016 |
| Primary APN | 22-13-300-016 |
|---|---|
| Alternative APN |
|
| Plumbing Fixtures | 5 Plumbing Fixtures |
|---|---|
| Stories | 1 Story |
| Building Area | 900 sqft Total Area |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Lot Area | 8,712 sqft (0.2 acres) |
| Street Address | 402 MASON ST |
|---|---|
| City | OTTAWA |
| State | IL |
| Zip | 61350-4042 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MASON'S ADD TO OTTAWA, LT 16 BLK 2 SEC 13-33-3 |
| Legal Range | 03 |
| Legal Township | 33 |
| Legal Section | 13 |
| Legal Subdivision | MASONS ADD |
| Legal Block | 2 |
| Legal Lot Number | 16 |
| Jurisdiction | LASALLE IL |
| Township / Civil Division | SOUTH OTTAWA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 963500 |
402 Mason St is owned and occupied by an individual.
Source: LaSalle County records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 402 MASON ST, OTTAWA, IL 61350-4042 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 402 Mason St was $4,139, up 432% from the year before.
Source: LaSalle County assessment roll, as of June 29, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | LaSalle County |
| County Subdivision | South Ottawa Township |
| Municipality | Ottawa City |
| Elementary School District | Ottawa Elementary School District 141 (PK - 08) |
| Secondary School District | Ottawa Township High School District 140 (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,139.00 (+432.01%) | $47,105 Land $8,767 Building $38,338 | $141,315 Land $26,301 Building $115,014 |
| 2024 | $778.00 | ||
| 2023 | $39,926 (+12.62%) Land $7,431 Building $32,495 | $119,778 (+12.62%) Land $22,293 Building $97,485 | |
| 2022 | $35,452 Land $7,149 Building $28,303 | $106,356 Land $21,447 Building $84,909 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 402 Mason St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective March 29, 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.
Wildfire risk around 402 Mason St is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 71% of Illinois |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | OTTAWA serves 18,097 people · EPA ID IL0990800 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2025 |
| Lead | Under 1 ppb (2026–2028) action level 15 ppb |
| Water Quality | Radium resolved · Jul 2023 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 5 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 555 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Surf Internet Fiber | 1,000 / 1,000 |
| Mediacom Xtream Cable · Fixed Wireless · Fiber in parts of the area | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
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