23029 Rio Lobos Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23029 Rio Lobos Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,089 sqft · built 1986
Lot Size	0.225 acres (9,802 sqft)
Owner	Company Name on Record
Last Sale	$975,000 (Nov 2021)
Tax Bill	$12,995 (2025)
Deeds & Mortgages	Nov 2021 Sale & Mortgage Jun 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8717-030-097`

Property Details

APN / Parcel Number

Primary APN	`8717-030-097`
Alternative APN	`8717030001`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	2,089 sqft Living Area

Exterior

Year Built	Built 1986
Effective Year Built	Effective 2004
Construction Type	Wood
Lot Area	9,802 sqft (0.225 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	23029 RIO LOBOS RD
City	DIAMOND BAR
State	CA
Zip	91765-4198
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR3800025
Legal Description	TR=32457 LOT 4
Legal Subdivision	32457
Legal Tract	32457
Legal Block	2
Legal Lot Number	4
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2006
Census Tract	403319

Owner

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

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

Owner of Record	Company Name on Record
Mailing Address	23029 RIO LOBOS RD, DIAMOND BAR, CA 91765-4198
Owner Type	Company
Vesting	Limited Liability Partnership

Deeds, Mortgages & Sale History

Date	Document
Nov 9, 2021	Grant Deed, Transfer · Conventional Mortgage SPEC HOME LOANS
Jun 1, 2018	Grant Deed, Transfer · Conventional Mortgage GRAND CASTLE INC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 9, 2021 · Amount on Record
Deed Sale	Nov 9, 2021 · Amount on Record
Prior Sale	Jun 1, 2018 · Amount on Record
Deed Document Number	20211673154
Last Transfer Date	Jun 25, 2024
Transfer Doc	0000433455
Record Updated	Oct 29, 2026

November 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 9, 2021
Property Address	23029 RIO LOBOS RD, DIAMOND BAR, CA 91765-4198
Document Number	0001673154
Map Reference	MB 989 PG 12-14
Instrument Date	Oct 22, 2021
Instrument	21-1673154
Transaction Type	Transfer
Record Updated	Jul 20, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	23029 RIO LOBOS RD, DIAMOND BAR, CA 91765-4198

Mortgage

Document Number	0001673155
Date	Nov 9, 2021
Instrument	21-1673155

Lender

Name	SPEC HOME LOANS
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2051

June 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 1, 2018
Property Address	23029 RIO LOBOS RD, DIAMOND BAR, CA 91765-4198
Document Number	0000545034
Instrument Date	May 30, 2018
Instrument	545034
Transaction Type	Transfer
Record Updated	Jun 11, 2018
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$797.50
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	23029 RIO LOBOS RD DIAMOND BAR CA 917654198, DIAMOND BAR, CA 91765-4198

Mortgage

Document Number	545035
Date	Jun 1, 2018
Instrument	545035

Lender

Name	GRAND CASTLE INC
Address	667 BREA CANYON RD # 24, WALNUT, CA 91789-3011

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 31, 2048

Tax Assessment & Valuation

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		$1,055,368 (+2%) Land $773,396 Building $281,972
2025	$12,995.00 (+7.2%)	$1,034,676 (+4.04%) Land $758,232 Building $276,444
2023	$12,122.00 (+2.11%)	$994,500 Land $728,790 Building $265,710
2022	$11,871.00

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

Flood

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

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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