Riverside County property record for 9528 Mason St, Riverside, CA 92503
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 884 sqft · built 1953 |
| Lot Size | 0.17 acres (7,405 sqft) |
| Owner | Individual Name on File |
| Last Sale | $73,000 (Jun 1998) |
| Tax Bill | $1,315 (2025) |
| Deeds & Mortgages | Mar 2024 Second Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 145-290-036 |
| Primary APN | 145-290-036 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 884 sqft Living Area |
| Gross Area | 1,054 sqft |
| 1st Floor Area | 884 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Construction Type | Wood |
| Roof Material | Gravel |
| Lot Area | 7,405 sqft (0.17 acres) |
| Garage Type | Detached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Old Parcel Number | 051800029 |
|---|---|
| Street Address | 9528 MASON ST |
| City | RIVERSIDE |
| State | CA |
| Zip | 92503-3611 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R2 |
| Legal Description | POR LOT 29 MB 008/026 VAN BUREN PK RESUB OF |
| Legal Subdivision | VAN BUREN PK RESUB OF |
| Legal Lot Number | 29 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 31602 |
Source: Riverside County assessment roll, as of July 29, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9528 MASON ST, RIVERSIDE, CA 92503-3611 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 5, 1998 · Amount on Record |
| Deed Sale | Jun 5, 1998 · Amount on Record |
| Deed Document Number | 1998231692 |
| Prior Transfer Date | Apr 14, 1998 |
| Prior Transfer Doc | 0000231692 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | RIVERSIDE CA |
| Property Address | 9528 MASON ST, RIVERSIDE, CA 92503-3611 |
| Transaction Type | Mortgage |
| Record Updated | Apr 11, 2024 |
| Title Company | NOT AVAILABLE, SOCAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 9528 MASON ST, RIVERSIDE, CA 92503-3611 |
| Document Number | 0000088561 |
|---|---|
| Date | Mar 27, 2024 |
| Instrument | 2024-0088561 |
| Name | ALTURA CU |
|---|---|
| Type | Credit Union |
| Address | RIVERSIDE, CA 92507 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 241 Months |
| Due | Mar 31, 2044 |
Source: Riverside County assessment roll, as of July 29, 2026
| Type | Name |
|---|---|
| State | California |
| County | Riverside County |
| Municipality | Riverside City |
| Unified School District | Riverside Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $114,785 (+2%) Land $56,982 Building $57,803 | ||
| 2025 | $1,315.00 (+3.71%) | $112,535 (+4.04%) Land $55,865 Building $56,670 | |
| 2023 | $1,268.00 (+1.85%) | $108,167 Land $53,697 Building $54,470 | |
| 2022 | $1,245.00 | ||
| 2021 | $286,740 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 |
|---|
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 USA Fixed Wireless | 100 / 20 |
May also be available: California Internet, Verizon.
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