21631 High Bluff Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21631 High Bluff Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,712 sqft · built 1978
Lot Size	0.866 acres (37,699 sqft)
Owner	2 Company Names on Record
Last Sale	$688,000 (May 2011)
Tax Bill	$11,657 (2025)
Deeds & Mortgages	Mar 2021 Mortgage Jun 2019 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8714-008-012`

Property Details

APN / Parcel Number

Primary APN	`8714-008-012`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	2,712 sqft Living Area

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1978
Construction Type	Wood
Lot Area	37,699 sqft (0.866 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	21631 HIGH BLUFF RD
City	DIAMOND BAR
State	CA
Zip	91765-3835
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR19000*
Legal Description	*TR=33205 LOT 22
Legal Subdivision	33205
Legal Tract	33205
Legal Block	2
Legal Lot Number	22
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2011
Census Tract	403325

Owner

Source: Los Angeles County records, as of May 21, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	21631 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 31, 2021	Deed of Trust, Mortgage · Conventional Mortgage PENNYMAC LOAN SERVICES LLC
Jun 26, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 12, 2011 · Amount on Record
Deed Sale	May 12, 2011 · Amount on Record
Deed Document Number	2011677176
Last Transfer Date	Jun 13, 2019
Transfer Doc	0000611174
Record Updated	Sep 20, 2026

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21631 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Transaction Type	Mortgage
Record Updated	Apr 8, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21631 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835

Mortgage

Document Number	0000502349
Date	Mar 31, 2021
Instrument	21-0502349

Lender

Name	PENNYMAC LOAN SERVICES LLC
Type	Mortgage Company
Address	WESTLAKE VILLAGE, CA 91361

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Apr 1, 2041

June 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 26, 2019
Property Address	21631 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Document Number	0000611174
Instrument Date	Jun 13, 2019
Instrument	611174
Transaction Type	Transfer
Record Updated	Jul 17, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	21631 HIGH BLUFF RD DIAMOND BAR CA 917653835, DIAMOND BAR, CA 91765-3835

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of May 21, 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
2025	$11,657.00 (+9.34%)	$888,030 (+4.04%) Land $384,346 Building $503,684
2023	$10,661.00 (+2.58%)	$853,548 Land $369,422 Building $484,126
2022	$10,393.00

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	High above 80% of the US · above 58% of California
Wildfire Likelihood	0.4% annual chance
Exposure	Direct burnable vegetation

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

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks, Verizon.

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