21538 Ambushers St, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21538 Ambushers St, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,712 sqft · built 1978
Lot Size	0.256 acres (11,148 sqft)
Owner	2 Trust Names on File
Last Sale	$278,000 (Nov 1995)
Tax Bill	$6,549 (2025)
Deeds & Mortgages	Nov 2018 Transfer Oct 2018 Line of Credit + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8714-010-007`

Property Details

APN / Parcel Number

Primary APN	`8714-010-007`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,712 sqft Living Area

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1978
Architectural Style	Contemporary
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	11,148 sqft (0.256 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	21538 AMBUSHERS ST
City	DIAMOND BAR
State	CA
Zip	91765-3805
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR19000*
Legal Description	*TR=33205 LOT 98
Legal Subdivision	33205
Legal Tract	33205
Legal Block	2
Legal Lot Number	98
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2024
Census Tract	403325

Owner

21538 Ambushers St is owner-occupied and held in a trust since October 2018.

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

Owner of Record	2 Trust Names on File
Mailing Address	21538 AMBUSHERS ST, DIAMOND BAR, CA 91765-3805
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

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
Nov 9, 2018	Quit Claim Deed, Transfer Quitclaim
Oct 26, 2018	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA
Sep 28, 2018	Affidavit of Death, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 13, 1995 · Amount on File
Deed Sale	Nov 13, 1995 · Amount on File
Deed Document Number	19951820689
Last Transfer Date	Oct 30, 2018
Transfer Doc	0001137721
Record Updated	Oct 29, 2026

November 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 9, 2018
Property Address	21538 AMBUSHERS ST, DIAMOND BAR, CA 91765-3805
Document Number	0001137721
Instrument Date	Oct 30, 2018
Instrument	1137721
Transaction Type	Transfer
Record Updated	Nov 27, 2018

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	21538 AMBUSHERS ST DIAMOND BAR CA 917653805, DIAMOND BAR, CA 91765-3805
Investor	Possibly a Property Investor

October 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21538 AMBUSHERS ST, DIAMOND BAR, CA 91765-3805
Document Number	0001130956
Instrument Date	Oct 26, 2018
Transaction Type	Mortgage
Record Updated	Nov 13, 2018
Title Company	WFG LENDER SERVICES, WFG LENDER SVCS

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21538 AMBUSHERS ST DIAMOND BAR CA 917653805, DIAMOND BAR, CA 91765-3805

Mortgage

Document Number	0001130956
Date	Nov 8, 2018
Instrument	1130956

Lender

Name	BANK OF AMERICA
Type	Bank
Address	TAMPA, FL 33634

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

September 2018: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	LOS ANGELES CA
Recording Date	Sep 28, 2018
Property Address	21538 AMBUSHERS ST, DIAMOND BAR, CA 91765-3805
Document Number	0000994996
Instrument Date	Jan 24, 2018
Instrument	994996
Transaction Type	Transfer
Record Updated	Oct 8, 2018

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21538 AMBUSHERS ST DIAMOND BAR CA 917653805, DIAMOND BAR, CA 91765-3805
Investor	Possibly a Property Investor

Tax Assessment & Valuation

The 2025 property tax bill for 21538 Ambushers St was $6,549 with a homeowner's exemption.

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		$504,948 (+2%) Land $193,831 Building $311,117
2025	$6,549.00 Homeowner's exemption	$495,048 Land $190,031 Building $305,017
2023	$6,169.00 (+2.14%) Homeowner's exemption	$475,826 Land $182,652 Building $293,174
2022	$6,040.00

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

Flood

FEMA maps place 21538 Ambushers St in Zone X, an area of minimal flood risk.

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

Wildfire risk around 21538 Ambushers St is moderate, ranking above 62% of the US, with a 0.2% annual chance of wildfire.

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

Wildfire Risk	Moderate above 62% of the US · lower than 62% of California
Wildfire Likelihood	0.2% annual chance
Exposure	Direct burnable vegetation

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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