21175 Running Branch Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21175 Running Branch Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,544 sqft · built 1981
Lot Size	0.245 acres (10,650 sqft)
Owner	Individual Name on File
Last Sale	$1,350,000 (May 2022)
Tax Bill	$17,889 (2025)
Deeds & Mortgages	May 2022 Sale & Mortgage Jan 2022 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8714-012-015`

Property Details

APN / Parcel Number

Primary APN	`8714-012-015`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	14 Rooms
Stories	2 Stories
Building Area	2,544 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1981
Effective Year Built	Effective 1981
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Tile
Lot Area	10,650 sqft (0.245 acres)
Lot Depth	140 ft Depth

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	21175 RUNNING BRANCH RD
City	DIAMOND BAR
State	CA
Zip	91765-3777
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR19000*
Legal Description	*TR=29053 LOT 15
Legal Subdivision	29053
Legal Tract	29053
Legal Block	2
Legal Lot Number	15
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2013
Census Tract	403325

Owner

21175 Running Branch Rd is owned and occupied by an individual who bought it in May 2022.

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

Owner of Record	Individual Name on File
Mailing Address	21175 RUNNING BRANCH RD, DIAMOND BAR, CA 91765-3777
Occupancy	Owner Occupied
Owner Type	Individual

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
May 2, 2022	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Jan 21, 2022	Grant Deed, Transfer TICOR TITLE SAN DIEGO BR, TICOR TITLE SAN DIEGO BRANCH
Aug 12, 2021	Deed of Trust, Mortgage · Line of Credit BBVA USA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 2, 2022 · Amount on File
Deed Sale	May 2, 2022 · Amount on File
Prior Sale	Jan 21, 2022 · Amount on File
Deed Document Number	2022475556
Prior Transfer Date	Oct 5, 2011
Prior Transfer Doc	0001385216
Record Updated	Oct 29, 2026

May 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	May 2, 2022
Property Address	21175 RUNNING BRANCH RD, DIAMOND BAR, CA 91765-3777
Document Number	0000475556
Map Reference	MB 909 PG 9-13
Instrument Date	Apr 18, 2022
Instrument	22-0475556
Transaction Type	Transfer
Record Updated	May 10, 2022
Title Company	TICOR TITLE SAN DIEGO BR, TICOR TITLE SAN DIEGO BRANCH

Transaction

Amount	Amount on Record
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
Address	21175 RUNNING BRANCH RD, DIAMOND BAR, CA 91765-3777

Mortgage

Document Number	0000475557
Date	May 2, 2022
Instrument	22-0475557

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 1, 2052

January 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 21, 2022
Property Address	21175 RUNNING BRANCH RD, DIAMOND BAR, CA 91765-3777
Document Number	0000081091
Map Reference	MB 909 PG 9-13
Instrument Date	Nov 17, 2021
Instrument	22-0081091
Transaction Type	Transfer
Record Updated	Jan 28, 2022
Title Company	TICOR TITLE SAN DIEGO BR, TICOR TITLE SAN DIEGO BRANCH

Transaction

Amount	Amount 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
Address	2611 INTERNET BLVD STE 201, 201, FRISCO, TX 75034-9093

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21175 RUNNING BRANCH RD, DIAMOND BAR, CA 91765-3777
Transaction Type	Mortgage
Record Updated	Aug 23, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21175 RUNNING BRANCH RD, DIAMOND BAR, CA 91765-3777

Mortgage

Document Number	0001239328
Date	Aug 12, 2021
Instrument	21-1239328

Lender

Name	BBVA USA
Type	Bank
Address	ONTARIO, CA 91762

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	59 Months
Due	Jul 2, 2026

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

The 2025 property tax bill for 21175 Running Branch Rd was $17,889.

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		$1,461,280 (+2%) Land $821,348 Building $639,932
2025	$17,889.00	$1,432,629 Land $805,244 Building $627,385
2023	$16,611.00 (+56.05%)	$1,377,000 Land $773,976 Building $603,024
2022	$10,645.00

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

Flood

FEMA maps place 21175 Running Branch 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 21175 Running Branch Rd is high, ranking above 71% of the US, with a 0.3% annual chance of wildfire.

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

Wildfire Risk	High above 71% of the US · above 46% of California
Wildfire Likelihood	0.3% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 565 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	100 / 20

May also be available: Frontier, Verizon.

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