21123 Willow Heights Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21123 Willow Heights Dr, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	5 bd · 4 ba · 3,312 sqft · built 2015
Lot Size	0.112 acres (4,890 sqft)
Owner	2 Company Names on Record
Last Sale	$1,375,000 (Oct 2015)
Tax Bill	$20,086 (2025)
Deeds & Mortgages	Nov 2022 Transfer Jan 2020 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8714-031-044`

Property Details

APN / Parcel Number

Primary APN	`8714-031-044`

Interior

Bedrooms	5 Beds
Full Baths	4 Baths
Building Area	3,312 sqft Living Area

Exterior

Year Built	Built 2015
Effective Year Built	Effective 2015
Construction Type	Wood
Lot Area	4,890 sqft (0.112 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	21123 WILLOW HEIGHTS DR
City	DIAMOND BAR
State	CA
Zip	91765-3794
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR17500-R
Legal Description	TR=72295 LOT 40
Legal Subdivision	LOT OF TRACT NO. 72295 AS SHOWN ON
Legal Tract	72295
Legal Block	2
Legal Lot Number	40
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2017
Census Tract	403325

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	2 Company Names on Record
Mailing Address	21123 WILLOW HEIGHTS DR, DIAMOND BAR, CA 91765-3794
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 4, 2022	Intrafamily Transfer, Transfer
Jan 17, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Dec 19, 2019	Intrafamily Transfer, Transfer · Conventional Mortgage US BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 29, 2015 · Amount on Record
Deed Sale	Oct 29, 2015 · Amount on Record
Deed Document Number	20151328758
Last Transfer Date	Dec 23, 2019
Transfer Doc	0000064206
Record Updated	Oct 29, 2026

November 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 4, 2022
Property Address	21123 WILLOW HEIGHTS DR, DIAMOND BAR, CA 91765-3794
Document Number	0001049393
Map Reference	MB 1380 PG 18-28
Instrument Date	Nov 4, 2022
Instrument	22-1049393
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	Living Trust
Address	21123 WILLOW HEIGHTS DR, DIAMOND BAR, CA 91765-3794

January 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 17, 2020
Property Address	21123 WILLOW HEIGHTS DR, DIAMOND BAR, CA 91765-3794
Document Number	0000064206
Instrument Date	Dec 23, 2019
Instrument	64206
Transaction Type	Transfer
Record Updated	Feb 20, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21123 WILLOW HEIGHTS DR DIAMOND BAR CA 917653794, DIAMOND BAR, CA 91765-3794

December 2019: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 19, 2019
Property Address	21123 WILLOW HEIGHTS DR, DIAMOND BAR, CA 91765-3794
Document Number	0001421859
Map Reference	MB 1380 PG 18-28
Instrument Date	Oct 8, 2019
Instrument	19-1421859
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	PACIFIC COAST TITLE COMPANY

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
Address	21123 WILLOW HEIGHTS DR, DIAMOND BAR, CA 91765-3794

Mortgage

Document Number	0001421860
Date	Dec 19, 2019
Instrument	19-1421860

Lender

Name	US BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Type Change Date	Jan 1, 2030
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	8.25%
Index	1-Year CMT
Max Rate	8.25%

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		$1,660,284 (+2%) Land $694,308 Building $965,976
2025	$20,086.00 (+7.13%)	$1,627,731 (+4.04%) Land $680,695 Building $947,036
2023	$18,749.00 (+2.11%)	$1,564,526 Land $654,264 Building $910,262
2022	$18,362.00

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 80% of the US · lower than 88% of California
Wildfire Likelihood	0.02% annual chance
Exposure	Indirect 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 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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