20640 E Oak Crest Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 20640 E Oak Crest Dr, Diamond Bar, CA 91765 · Last verified June 2026

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 3,453 sqft · built 1997
Lot Size	0.341 acres (14,846 sqft)
Owner	2 Company Names on File
Last Sale	$376,000 (Dec 1996)
Tax Bill	$8,397 (2025)
Deeds & Mortgages	Apr 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8269-090-003`

Property Details

APN / Parcel Number

Primary APN	`8269-090-003`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Building Area	3,453 sqft Living Area

Exterior

Year Built	Built 1997
Effective Year Built	Effective 1997
Construction Type	Wood
Lot Area	14,846 sqft (0.341 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	20640 E OAK CREST DR
City	DIAMOND BAR
State	CA
Zip	91765-4704
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TR=44478 LOT 3
Legal Subdivision	44478
Legal Tract	44478
Legal Block	3
Legal Lot Number	3
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3003
Census Tract	408703

Owner

Source: Los Angeles County records · APN 8269-090-003

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 Company Names on File
Mailing Address	20640 E OAK CREST DR, DIAMOND BAR, CA 91765-4704
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Dec 20, 1996 · Amount on Record
Deed Sale	Dec 20, 1996 · Amount on Record
Deed Document Number	19962059199
Record Updated	Sep 20, 2026

April 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 13, 2022
Property Address	20640 E OAK CREST DR, DIAMOND BAR, CA 91765-4704
Document Number	0000411067
Map Reference	MB 1211 PG 42-50
Instrument Date	Apr 11, 2022
Instrument	22-0411067
Transaction Type	Transfer
Record Updated	Jun 07, 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	Family Trust
Address	20640 E OAK CREST DR, DIAMOND BAR, CA 91765-4704

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	$8,397.00 (+10.17%) Homeowner's exemption	$612,362 (+4.04%) Land $221,489 Building $390,873
2023	$7,622.00 (+2.78%) Homeowner's exemption	$588,586 Land $212,890 Building $375,696
2022	$7,416.00

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
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	No

Wildfire

Wildfire Risk	Moderate above 46% of the US · above 27% of California
Wildfire Likelihood	About 1 in 1,316 per year
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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