21637 High Bluff Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21637 High Bluff Rd, Diamond Bar, CA 91765 · Last verified June 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,378 sqft · built 1978
Lot Size	1.99 acres (86,860 sqft)
Owner	2 Individual Names on File
Last Sale	$820,000 (Jul 2018)
Tax Bill	$11,940 (2025)
Deeds & Mortgages	Jan 2026 Mortgage Dec 2017 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`8714-008-021`

Property Details

APN / Parcel Number

Primary APN	`8714-008-021`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,378 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1978
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	86,860 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	21637 HIGH BLUFF RD
City	DIAMOND BAR
State	CA
Zip	91765-3835
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	*TR=33602 LOT 1
Legal Subdivision	33602
Legal Tract	33602
Legal Block	2
Legal Lot Number	1
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 · APN 8714-008-021

Assessment roll updated May 21, 2026 · Last verified June 2026

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

Owner of Record	2 Individual Names on File
Mailing Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jan 07, 2026	Deed of Trust, Mortgage · Commercial Mortgage SLOAN FAMILY TRUST
Dec 13, 2017	Deed of Trust, Mortgage · Line of Credit CATHAY BANK
Aug 31, 2020	Deed of Trust, Mortgage · Conventional Mortgage NMSI INC
Sep 17, 2019	Deed of Trust, Mortgage · Conventional Mortgage ACG FUNDING INC
Jul 13, 2018	Grant Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 13, 2018 · Amount on Record
Deed Sale	Jul 13, 2018 · Amount on Record
Prior Sale	Mar 02, 2004 · Amount on Record
Deed Document Number	2018701206
Prior Transfer Date	Apr 18, 2008
Prior Transfer Doc	0000724871
Record Updated	Sep 20, 2026

January 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Transaction Type	Mortgage
Record Updated	Jan 16, 2026
Title Company	ACCOMODATION, ACCOMMODATION

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3211 BENT TWIG LN, DIAMOND BAR, CA 91765-3810

Mortgage

Document Number	0000016158
Date	Jan 07, 2026
Instrument	26-0016158

Lender

Name	SLOAN FAMILY TRUST
Type	Private Party
Address	1651 SANDALWOOD AVE, FULLERTON, CA 92835

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

December 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Transaction Type	Mortgage
Record Updated	Feb 05, 2021
Title Company	CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0001446252
Date	Dec 13, 2017
Instrument	17-1446252

Lender

Name	CATHAY BANK
Type	Bank
Address	EL MONTE, CA 91731

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Transaction Type	Mortgage
Record Updated	Feb 05, 2021
Title Company	WESTMINSTER TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835

Mortgage

Document Number	0001027044
Date	Aug 31, 2020
Instrument	20-1027044

Lender

Name	NMSI INC
Type	Mortgage Company
Address	LOS ANGELES, CA 90010

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 01, 2050

September 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Document Number	0000997836
Instrument Date	Sep 17, 2019
Transaction Type	Mortgage
Record Updated	Oct 03, 2019
Title Company	WESTMINISTER TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	21637 HIGH BLUFF RD DIAMOND BAR CA 917653835, DIAMOND BAR, CA 91765-3835

Mortgage

Document Number	0000997836
Date	Sep 24, 2019
Instrument	997836

Lender

Name	ACG FUNDING INC
Type	Bank
Address	17590 COLIMA RD, ROWLAND HEIGHTS, CA 91748-1752

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Sep 23, 2049

July 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jul 13, 2018
Property Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835
Document Number	0000701206
Map Reference	MB 895 PG 67&68
Instrument Date	May 31, 2018
Instrument	18-0701206
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	WFG NATIONAL TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
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
Address	21637 HIGH BLUFF RD, DIAMOND BAR, CA 91765-3835

Mortgage

Document Number	0000701207
Date	Jul 13, 2018
Instrument	18-0701207

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 01, 2048

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 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

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

Year	Tax Bill	Assessed Value
2025	$11,940.00 (+8.54%)	$914,720 (+4.04%) Land $446,205 Building $468,515
2023	$11,001.00 (+2.53%)	$879,202 Land $428,879 Building $450,323
2022	$10,730.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No

Wildfire

Wildfire Risk	High above 80% of the US · above 58% of California
Wildfire Likelihood	About 1 in 238 per year
Exposure	Direct burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 234 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Spectrum	Cable	1,000 / 1,000
T-Mobile USA	Fixed Wireless	100 / 20

May also be available at this address: Frontier, Verizon, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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