Riverside County property record for 6539 Mount Diablo Ave, Riverside, CA 92506
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,584 sqft · built 1952 |
| Lot Size | 0.24 acres (10,454 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $637,000 (Jul 2025) |
| Tax Bill | $4,010 (2025) |
| Deeds & Mortgages | Apr 2026 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 225-322-002 |
| Primary APN | 225-322-002 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,584 sqft Living Area |
| Gross Area | 2,185 sqft |
| 1st Floor Area | 1,584 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 10,454 sqft (0.24 acres) |
| Garage Type | Attached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Connected |
| Old Parcel Number | 042400224 |
|---|---|
| Street Address | 6539 MOUNT DIABLO AVE |
| City | RIVERSIDE |
| State | CA |
| Zip | 92506-3908 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1065 |
| Legal Description | LOT 216 MB 025/004 SUN GOLD TERRACE UNIT 4 |
| Legal Subdivision | SUN GOLD TERRACE UNIT 4 |
| Legal Lot Number | 216 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 31100 |
6539 Mount Diablo Ave is owned and occupied by two individuals who bought it in July 2025.
Source: Riverside County records, as of July 29, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 6539 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3908 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Jul 11, 2025 · Amount on File |
| Deed Sale | Jul 11, 2025 · Amount on File |
| Prior Sale | May 28, 2004 · Amount on File |
| Deed Document Number | 2025213344 |
| Prior Transfer Date | Nov 7, 2007 |
| Prior Transfer Doc | 0000750971 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | RIVERSIDE CA |
| Recording Date | Apr 10, 2026 |
| Property Address | 6539 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3908 |
| Document Number | 0000108978 |
| Instrument Date | Apr 10, 2026 |
| Instrument | 2026108978 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Relationship | Community Property, 149 |
| Address | 6539 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3908 |
| Document Number | 0000108978, |
|---|---|
| Date | Apr 10, 2026 |
| Instrument | 2026108978 |
| Name | FIRST COLONY MORTGAGE CORPORATION |
|---|
| Type | VA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
The 2025 property tax bill for 6539 Mount Diablo Ave was $4,010, up 3.4% from the year before.
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 | $637,000 (+79.23%) Land $191,100 Building $445,900 | ||
| 2025 | $4,010.00 (+3.38%) | $355,419 Land $78,183 Building $277,236 | |
| 2024 | $3,879.00 (+0.44%) | ||
| 2023 | $3,862.00 (+1.87%) | $341,619 Land $75,148 Building $266,471 | |
| 2022 | $3,791.00 | ||
| 2021 | $443,250 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 6539 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 6539 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.
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