23010 Rio Lobos Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23010 Rio Lobos Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,078 sqft · built 1986
Lot Size	0.19 acres (8,263 sqft)
Owner	2 Individual Names on File
Tax Bill	$4,703 (2025)
Deeds & Mortgages	Sep 2021 Mortgage Apr 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8717-030-054`

Property Details

APN / Parcel Number

Primary APN	`8717-030-054`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	2,078 sqft Living Area

Exterior

Year Built	Built 1986
Effective Year Built	Effective 1986
Construction Type	Wood
Lot Area	8,263 sqft (0.19 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	23010 RIO LOBOS RD
City	DIAMOND BAR
State	CA
Zip	91765-4197
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR3800025
Legal Description	*TR=32457 LOT 30
Legal Subdivision	32457
Legal Tract	32457
Legal Block	2
Legal Lot Number	30
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2009
Census Tract	403319

Owner

23010 Rio Lobos Rd is owned and occupied by two individuals who acquired it in June 1997.

Source: Los Angeles County records, as of August 25, 2026

Owner of Record	2 Individual Names on File
Mailing Address	23010 RIO LOBOS RD, DIAMOND BAR, CA 91765-4197
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

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

Date	Document
Sep 15, 2021	Deed of Trust, Mortgage · Conventional Mortgage RATE ONE FINANCIAL INC
Apr 13, 2020	Deed of Trust, Mortgage · Conventional Mortgage RATE ONE
Aug 7, 2019	Deed of Trust, Mortgage · Conventional Mortgage RATE ONE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jun 30, 1997
Transfer Doc	0001283550
Record Updated	Oct 29, 2026

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23010 RIO LOBOS RD, DIAMOND BAR, CA 91765-4197
Transaction Type	Mortgage
Record Updated	Sep 22, 2021
Title Company	FIRST AMERICAN TITLE COMPANY GLENDALE, FIRST AMER TTL CO GLENDALE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	23010 RIO LOBOS RD, DIAMOND BAR, CA 91765-4197

Mortgage

Document Number	0001410859
Date	Sep 15, 2021
Instrument	21-1410859

Lender

Name	RATE ONE FINANCIAL INC
Type	Mortgage Company
Address	SIERRA MADRE, CA 91024

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2051

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23010 RIO LOBOS RD, DIAMOND BAR, CA 91765-4197
Document Number	0000439567
Instrument Date	Apr 13, 2020
Transaction Type	Mortgage
Record Updated	May 12, 2020
Title Company	FIRST AMERICAN TITLE COMPANY GLENDALE, FIRST AMERICAN TITLE CO GLENDA

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	23010 RIO LOBOS RD DIAMOND BAR CA 917654197, DIAMOND BAR, CA 91765-4197

Mortgage

Document Number	0000439567
Date	Apr 21, 2020
Instrument	439567

Lender

Name	RATE ONE
Address	PASADENA, CA 91101

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 20, 2050

August 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23010 RIO LOBOS RD, DIAMOND BAR, CA 91765-4197
Document Number	0000806265
Instrument Date	Aug 7, 2019
Transaction Type	Mortgage
Record Updated	Aug 19, 2019
Title Company	FIRST AMERICAN TITLE-LA

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	23010 RIO LOBOS RD DIAMOND BAR CA 917654197, DIAMOND BAR, CA 91765-4197

Mortgage

Document Number	0000806265
Date	Aug 13, 2019
Instrument	806265

Lender

Name	RATE ONE
Address	PASADENA, CA 91101

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Aug 12, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 23010 Rio Lobos Rd was $4,703 with a homeowner's exemption.

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Diamond Bar City
Unified School District	Walnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$342,490 (+2%) Land $136,992 Building $205,498
2025	$4,703.00 Homeowner's exemption	$335,775 Land $134,306 Building $201,469
2023	$4,304.00 (+2.18%) Homeowner's exemption	$322,739 Land $129,092 Building $193,647
2022	$4,212.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 23010 Rio Lobos Rd in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 30, 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.

Wildfire

Wildfire risk around 23010 Rio Lobos Rd is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 98% of the US · lower than 98.4% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 System	WALNUT VALLEY WATER DISTRICT serves 100,941 people · EPA ID CA1910234
Water Source	Purchased surface water from several systems
Last State Inspection	Jun 2023
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 464 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
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks.

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