Riverside County property record for 9857 Diana Ave, Riverside, CA 92503
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 3.5 ba · 2,784 sqft · built 1978 |
| Lot Size | 0.3 acres (13,068 sqft) |
| Owner | Company Name on Record |
| Last Sale | $145,000 (Dec 1999) |
| Tax Bill | $2,561 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 234-121-019 |
| Primary APN | 234-121-019 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 2 Half Baths |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 2,784 sqft Living Area |
| Gross Area | 3,488 sqft |
| 1st Floor Area | 2,784 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Roof Material | Tile |
| Lot Area | 13,068 sqft (0.3 acres) |
| Garage Type | Attached |
| Garage Area | 704 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Street Address | 9857 DIANA AVE |
|---|---|
| City | RIVERSIDE |
| State | CA |
| Zip | 92503-4253 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R1 |
| Legal Description | LOT 16 MB 093/043 TR 8121 |
| Legal Tract | 8121 |
| Legal Lot Number | 16 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 31601 |
Source: Riverside County records, 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 | Company Name on Record |
|---|---|
| Mailing Address | 11142 BERMUDA ST, CERRITOS, CA 90703-1639 |
| Owner Type | Company |
| Vesting | Undivided Interest |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 29, 1999 · Amount on Record |
| Deed Sale | Dec 29, 1999 · Amount on Record |
| Deed Document Number | 1999560911 |
| Last Transfer Date | Dec 21, 2012 |
| Transfer Doc | 0000014548 |
| Record Updated | Oct 29, 2026 |
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 |
|---|---|---|
| 2026 | $227,288 (+2%) Land $70,530 Building $156,758 | |
| 2025 | $2,561.00 (+3.77%) | $222,833 (+4.04%) Land $69,148 Building $153,685 |
| 2023 | $2,468.00 (+1.82%) | $214,182 Land $66,464 Building $147,718 |
| 2022 | $2,424.00 |
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 358 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Verizon.
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