20609 E Oak Crest Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 20609 E Oak Crest Dr, Diamond Bar, CA 91765 · Last verified June 2026

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 3,372 sqft · built 1997
Lot Size	0.187 acres (8,155 sqft)
Owner	2 Company Names on File
Last Sale	$350,000 (Dec 1996)
Tax Bill	$7,935 (2025)
Flood Zone	Zone X (minimal risk)
APN	`8269-090-040`

Property Details

APN / Parcel Number

Primary APN	`8269-090-040`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Building Area	3,372 sqft Living Area

Exterior

Year Built	Built 1997
Effective Year Built	Effective 1997
Construction Type	Wood
Lot Area	8,155 sqft (0.187 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	20609 E OAK CREST DR
City	DIAMOND BAR
State	CA
Zip	91765-4703
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TR=44478 LOT 69
Legal Subdivision	44478
Legal Tract	44478
Legal Block	3
Legal Lot Number	69
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3000
Census Tract	408703

Owner

Source: Los Angeles County records · APN 8269-090-040

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	20609 E OAK CREST DR, DIAMOND BAR, CA 91765-4703
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 17, 1996 · Amount on Record
Deed Sale	Dec 17, 1996 · Amount on Record
Deed Document Number	19962037961
Last Transfer Date	Jan 10, 2007
Transfer Doc	0000641735
Record Updated	Sep 20, 2026

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	$7,935.00 (+11.59%) Homeowner's exemption	$581,915 (+4.04%) Land $174,259 Building $407,656
2023	$7,111.00 (+2.14%) Homeowner's exemption	$559,321 Land $167,494 Building $391,827
2022	$6,962.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060374087033, refreshed September 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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	1 in force

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; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 257 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Frontier	Fiber	7,000 / 7,000
Spectrum	Cable	1,000 / 50
Verizon	Fixed Wireless	300 / 20
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	Fixed Wireless	100 / 20
Starlink	Satellite (low-earth orbit)	280 / 30

Availability varies by address; speeds are provider-advertised maximums, not measured.