Riverside County property record for 9570 Mason St, Riverside, CA 92503
| Property Type | Home Plus Accessory Dwelling Unit |
|---|---|
| Details | 4 bd · 2 ba · 1,814 sqft · built 1951 |
| Lot Size | 0.189 acres (8,276 sqft) |
| Owner | Owner Name on Record |
| Last Sale | $225,000 (Aug 2008) |
| Tax Bill | $3,279 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 145-290-041 |
| Primary APN | 145-290-041 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,814 sqft Living Area |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Construction Type | Tilt-Up Concrete |
| Roof Material | Wood Shingle |
| Lot Area | 8,276 sqft (0.189 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Carport Area | 742 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Connected |
| Account Number | 145290041 |
|---|---|
| Street Address | 9570 MASON ST |
| City | RIVERSIDE |
| State | CA |
| Zip | 92503-3611 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home Plus Accessory Dwelling Unit |
| Local Zoning Code | R2 |
| Legal Description | LOT 34 MB 008/026 VAN BUREN PK RESUB OF |
| Legal Subdivision | THE RESUBDIVISION OF VAN BUREN PARK |
| Legal Lot Number | 34 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 31602 |
Source: Riverside County records, as of October 13, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on Record |
|---|---|
| Mailing Address | 6709 CALLE PONTE BELLA, RANCHO SANTA FE, CA 92091-0213 |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 29, 2008 · Amount on Record |
| Deed Sale | Aug 29, 2008 · Amount on Record |
| Prior Sale | Jul 28, 2008 · Amount on Record |
| Deed Document Number | 2008-0479622 |
| Record Updated | Jun 7, 2026 |
Source: Riverside County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Riverside County |
| Municipality | Riverside City |
| Unified School District | Riverside Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $3,279.00 (+3.8%) | $289,724 (+4.04%) Land $115,887 Building $173,837 |
| 2023 | $3,159.00 (+1.87%) | $278,476 Land $111,388 Building $167,088 |
| 2022 | $3,101.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026
| 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.
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 | CITY OF RIVERSIDE serves 302,776 people · EPA ID CA3310031 |
|---|---|
| Water Source | Groundwater influenced by surface water |
| Lead | 1 ppb (2023–2025) 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 575 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures