21402 Running River Ct, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21402 Running River Ct, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,268 sqft · built 1977
Lot Size	0.208 acres (9,064 sqft)
Owner	2 Company Names on File
Last Sale	$275,000 (Dec 2000)
Tax Bill	$5,646 (2025)
Deeds & Mortgages	Sep 2022 Transfer May 2021 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8292-020-026`

Property Details

APN / Parcel Number

Primary APN	`8292-020-026`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	2,268 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1977
Effective Year Built	Effective 1977
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	9,064 sqft (0.208 acres)
Lot Dimensions	118 ft deep x 71 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	21402 RUNNING RIVER CT
City	DIAMOND BAR
State	CA
Zip	91765-2753
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR1*
Legal Description	*TR=28579 LOT 77
Legal Subdivision	28579
Legal Tract	28579
Legal Block	2
Legal Lot Number	77
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2002
Census Tract	403328

Owner

21402 Running River Ct is owned by a company that acquired it in September 2022 and is owner-occupied.

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

Owner of Record	2 Company Names on File
Mailing Address	21402 RUNNING RIVER CT, DIAMOND BAR, CA 91765-2753
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

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 23, 2022	Intrafamily Transfer, Transfer
May 18, 2021	Deed of Trust, Mortgage · Conventional Mortgage CALIBER HOME LOANS INC
Nov 21, 2019	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 13, 2000 · Amount on File
Deed Sale	Dec 13, 2000 · Amount on File
Deed Document Number	20001935476
Last Transfer Date	Sep 16, 2022
Transfer Doc	0000934091
Record Updated	Oct 29, 2026

September 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Sep 23, 2022
Property Address	21402 RUNNING RIVER CT, DIAMOND BAR, CA 91765-2753
Document Number	0000934091
Map Reference	MB 862 PG 40-46
Instrument Date	Sep 16, 2022
Instrument	22-0934091
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Living Trust
Address	21402 RUNNING RIVER CT, DIAMOND BAR, CA 91765-2753

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21402 RUNNING RIVER CT, DIAMOND BAR, CA 91765-2753
Transaction Type	Mortgage
Record Updated	May 26, 2021
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN MORTGAGE SLN

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21402 RUNNING RIVER CT, DIAMOND BAR, CA 91765-2753

Mortgage

Document Number	0000791448
Date	May 18, 2021
Instrument	21-0791448

Lender

Name	CALIBER HOME LOANS INC
Type	Mortgage Company
Address	IRVINE, CA 92614

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	241 Months
Due	Jun 1, 2041

November 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21402 RUNNING RIVER CT, DIAMOND BAR, CA 91765-2753
Document Number	0001319798
Instrument Date	Nov 21, 2019
Transaction Type	Mortgage
Record Updated	Dec 9, 2019
Title Company	WFG LENDER SERVICES, WFG LENDER SVCS

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21402 RUNNING RIVER CT DIAMOND BAR CA 917652753, DIAMOND BAR, CA 91765-2753

Mortgage

Document Number	0001319798
Date	Dec 2, 2019
Instrument	1319798

Lender

Name	BANK OF AMERICA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 21402 Running River Ct was $5,646 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		$422,644 (+2%) Land $218,699 Building $203,945
2025	$5,646.00 Homeowner's exemption	$414,358 Land $214,411 Building $199,947
2023	$5,194.00 (+2.14%) Homeowner's exemption	$398,270 Land $206,086 Building $192,184
2022	$5,085.00

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

Flood

FEMA maps place 21402 Running River Ct 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

The area around 21402 Running River Ct 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.

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 441 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 35

May also be available: Frontier, T-Mobile, Verizon.

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