1638 Bears Den Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 1638 Bears Den Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,643 sqft · built 1978
Lot Size	0.25 acres (10,883 sqft)
Owner	2 Company Names on File
Tax Bill	$4,587 (2025)
Deeds & Mortgages	Jun 2026 Sale Apr 2026 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8702-012-043`

Property Details

APN / Parcel Number

Primary APN	`8702-012-043`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	1 Room
Stories	1 Story
Building Area	1,643 sqft Living Area

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1978
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	10,883 sqft (0.25 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	1638 BEARS DEN RD
City	DIAMOND BAR
State	CA
Zip	91765-2607
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18000*
Legal Description	*TR=25096 LOT 31
Legal Subdivision	25096
Legal Tract	25096
Legal Block	3
Legal Lot Number	31
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3011
Census Tract	403324

Owner

1638 Bears Den Rd is owned by a company that acquired it in November 2015.

Source: Los Angeles County records, as of August 25, 2026

Owner of Record	2 Company Names on File
Mailing Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607
Owner Type	Company
Vesting	Life Tenant

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jun 16, 2026	Deed, Transfer NONE LISTED ON DOCUMENT
Apr 15, 2026	Affidavit of Death of Trustee, Transfer
Apr 15, 2026	Grant Deed, Transfer NONE LISTED ON DOCUMENT

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Nov 23, 2015
Transfer Doc	0001507617
Record Updated	Oct 29, 2026

June 2026: Deed, Transfer

Document Type	Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 16, 2026
Property Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607
Document Number	0000440142
Instrument Date	Jun 3, 2026
Instrument	2026440142
Transaction Type	Transfer
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Life Tenant
Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607

April 2026: Affidavit of Death of Trustee, Transfer

Document Type	Affidavit of Death of Trustee
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 15, 2026
Property Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607
Document Number	0000265796
Instrument Date	Apr 8, 2026
Instrument	2026265796
Transaction Type	Transfer
Record Updated	Aug 27, 2026

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607

April 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 15, 2026
Property Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607
Document Number	0000265797
Instrument Date	Mar 15, 2026
Instrument	2026265797
Transaction Type	Transfer
Record Updated	Aug 27, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	1638 BEARS DEN RD, DIAMOND BAR, CA 91765-2607

Tax Assessment & Valuation

The 2025 property tax bill for 1638 Bears Den Rd was $4,587, up 7.2% from the year before.

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		$321,100 (+2%) Land $113,928 Building $207,172
2025	$4,587.00 (+7.25%) Homeowner's exemption	$314,805 Land $111,695 Building $203,110
2024	$4,277.00 (+4.75%)
2023	$4,083.00 (+2.15%) Homeowner's exemption	$302,582 Land $107,358 Building $195,224
2022	$3,997.00

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

Flood

FEMA maps place 1638 Bears Den Rd in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 30, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

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.

Wildfire

Wildfire risk around 1638 Bears Den Rd is low, with a 0.05% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 62% of the US · lower than 77% of California
Wildfire Likelihood	0.05% annual chance
Exposure	None beyond 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 501 locations within half a mile, as of December 31, 2025

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

May also be available: GeoLinks, T-Mobile, Verizon.

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