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6578 Mount Diablo Ave, Riverside, CA 92506 Property Records

Riverside County property record for 6578 Mount Diablo Ave, Riverside, CA 92506

Property Summary

Property TypeSingle Family Home
Details2 bd · 1.75 ba · 1,370 sqft · built 1952
Lot Size0.2 acres (8,712 sqft)
Owner2 Trust Names on File
Last Sale$128,000 (Dec 1995)
Tax Bill$2,425 (2025)
Deeds & MortgagesFeb 2026 Transfer
Oct 2025 Sale
+ 1 more
Flood ZoneZone X (minimal risk)
APN225-323-016

Property Details

APN / Parcel Number

Primary APN225-323-016
Alternative APN
  • 042400248

Interior

Bedrooms2 Beds
Full Baths1.75 Baths
Half Baths1 Half Bath
Stories1 Story
Building Area1,370 sqft Living Area
Gross Area1,482 sqft
1st Floor Area1,370 sqft

Exterior

Year BuiltBuilt 1952
Effective Year BuiltEffective 1952
Construction TypeWood
Roof MaterialGravel
Lot Area8,712 sqft (0.2 acres)
Garage TypeDetached
Garage Area360 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
Heating FuelGas
SewerConnected

Location & Zoning

Old Parcel Number042400248
Street Address6578 MOUNT DIABLO AVE
CityRIVERSIDE
StateCA
Zip92506-3913
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1065
Legal DescriptionLOT 240 MB 025/004 SUN GOLD TERRACE UNIT 4
Legal SubdivisionSUN GOLD TERRACE UNIT 4
Legal Block2
Legal Lot Number240
JurisdictionRIVERSIDE CA
Township / Civil DivisionRIVERSIDE
Census Block Group2
Census Block2000
Census Tract31100

Owner

6578 Mount Diablo Ave is held in a trust since August 1997.

Source: Riverside County records, as of July 29, 2026

Owner of Record2 Trust Names on File
Mailing Address23363 MARGUERITE CIR, MORENO VALLEY, CA 92557
Owner TypeCompany
VestingTrust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Feb 6, 2026Intrafamily Transfer, Transfer
Oct 15, 2025Executor's Deed, Transfer
Jul 30, 2021Deed of Trust, Mortgage · Conventional Mortgage
UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 22, 1995 · Amount on File
Deed SaleDec 22, 1995 · Amount on File
Deed Document Number1995425117
Last Transfer DateAug 5, 1997
Transfer Doc0000346639
Record UpdatedOct 29, 2026

February 2026: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionRIVERSIDE CA
Recording DateFeb 6, 2026
Property Address6578 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3913
Document Number0000039268
Map ReferenceMB 25 PG 4
Instrument DateFeb 3, 2026
Instrument2026-0039268
Transaction TypeTransfer
Record UpdatedFeb 19, 2026

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address23363 MERRYGROVE CIR, MORENO VALLEY, CA 92553-5989

October 2025: Executor's Deed, Transfer

Document TypeExecutor's Deed
JurisdictionRIVERSIDE CA
Recording DateOct 15, 2025
Property Address6578 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3913
Document Number0000316484
Map ReferenceMB 25 PG 4
Instrument DateOct 10, 2025
Instrument2025-0316484
Transaction TypeTransfer
Record UpdatedOct 28, 2025

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address23633 MARGUERITE CIR, MORENO VALLEY, CA 92557-2853

July 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionRIVERSIDE CA
Property Address6578 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3913
Transaction TypeMortgage
Record UpdatedAug 13, 2021
Title CompanyCHICAGO TITLE-INLAND EMPIRE, CHICAGO TITLE INLAND EMPIRE

Transferred To (Grantee/Buyer)

NameVerified Name
Address6578 MOUNT DIABLO AVE, RIVERSIDE, CA 92506-3913

Mortgage

Document Number0000457458
DateJul 30, 2021
Instrument2021-0457458
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
AddressPONTIAC, MI 48341
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term181 Months
DueAug 1, 2036

Tax Assessment & Valuation

The 2025 property tax bill for 6578 Mount Diablo Ave was $2,425.

Source: Riverside County assessment roll, as of July 29, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyRiverside County
MunicipalityRiverside City
Unified School DistrictRiverside Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$216,855 (+2%) Land $59,285 Building $157,570
2025$2,425.00$212,605 Land $58,125 Building $154,480
2023$2,337.00 (+1.87%)$204,351 Land $55,869 Building $148,482
2022$2,294.00
2021$443,070

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 6578 Mount Diablo Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 14, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 6578 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 RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemCITY OF RIVERSIDE
serves 302,776 people · EPA ID CA3310031
Water SourceGroundwater influenced by surface water
Lead1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 440 locations within half a mile, as of December 31, 2025

ProviderMax 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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