Riverside County property record for 6640 Mount Diablo Ave, Riverside, CA 92506
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.75 ba · 1,319 sqft · built 1952 |
| Lot Size | 0.2 acres (8,712 sqft) |
| Owner | Individual Name on File |
| Last Sale | $525,000 (Sep 2025) |
| Tax Bill | $1,756 (2025) |
| Deeds & Mortgages | Sep 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 225-323-022 |
| Primary APN | 225-323-022 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,319 sqft Living Area |
| Gross Area | 1,367 sqft |
| 1st Floor Area | 1,319 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 8,712 sqft (0.2 acres) |
| Garage Type | Detached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Old Parcel Number | 042400242 |
|---|---|
| Street Address | 6640 MOUNT DIABLO AVE |
| City | RIVERSIDE |
| State | CA |
| Zip | 92506-3925 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1065 |
| Legal Description | LOT 234 MB 025/004 SUN GOLD TERRACE UNIT 4 |
| Legal Subdivision | SUN GOLD TERRACE UNIT 4 |
| Legal Lot Number | 234 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 31100 |
6640 Mount Diablo Ave is owned and occupied by an individual who bought it in September 2025.
Source: Riverside County records, as of July 29, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 6640 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3925 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Man |
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 |
|---|---|
| Last Sale | Sep 26, 2025 · Amount on File |
| Deed Sale | Sep 26, 2025 · Amount on File |
| Deed Document Number | 2025296450 |
| Prior Transfer Date | Jul 14, 2025 |
| Prior Transfer Doc | 0000221368 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | RIVERSIDE CA |
| Recording Date | Sep 26, 2025 |
| Property Address | 6640 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3925 |
| Document Number | 0000296450 |
| Map Reference | MB 25 PG 4 |
| Instrument Date | Sep 4, 2025 |
| Instrument | 2025-0296450 |
| Transaction Type | Transfer |
| Record Updated | Oct 8, 2025 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,155.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 6640 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3925 |
| Document Number | 0000296451 |
|---|---|
| Date | Sep 26, 2025 |
| Instrument | 2025-0296451 |
| Name | SECURE CHOICE LENDING |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2055 |
The 2025 property tax bill for 6640 Mount Diablo Ave was $1,756.
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 | $525,000 (+244.63%) Land $157,501 Building $367,499 | ||
| 2025 | $1,756.00 | $152,336 Land $45,689 Building $106,647 | |
| 2023 | $1,693.00 (+1.8%) | $146,422 Land $43,916 Building $102,506 | |
| 2022 | $1,663.00 | ||
| 2021 | $577,260 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 6640 Mount Diablo Ave in Zone X, an area of minimal flood risk.
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.
The area around 6640 Mount Diablo Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 440 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 Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: GeoLinks, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures