21505 Ambushers St, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21505 Ambushers St, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,752 sqft · built 1978
Lot Size	0.22 acres (9,572 sqft)
Owner	2 Trust Names on File
Last Sale	$930,000 (Jun 2021)
Tax Bill	$12,549 (2025)
Deeds & Mortgages	Jan 2024 Second Mortgage Apr 2023 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`8714-003-010`

Property Details

APN / Parcel Number

Primary APN	`8714-003-010`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,752 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1978
Architectural Style	Contemporary
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	9,572 sqft (0.22 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	21505 AMBUSHERS ST
City	DIAMOND BAR
State	CA
Zip	91765-3806
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR19000*
Legal Description	*TR=33205 LOT 1
Legal Subdivision	33205
Legal Tract	33205
Legal Block	2
Legal Lot Number	1
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2023
Census Tract	403325

Owner

21505 Ambushers St is owner-occupied and held in a trust since April 2023.

Source: Los Angeles County records, as of October 20, 2026

Owner of Record	2 Trust Names on File
Mailing Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806
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
Jan 16, 2024	Deed of Trust, Mortgage · Stand-Alone Second Mortgage LOS ANGELES FCU
Apr 25, 2023	Intrafamily Transfer, Transfer
Jun 7, 2021	Grant Deed, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Aug 28, 2020	Deed of Trust, Mortgage · Conventional Mortgage MK LENDING CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 7, 2021 · Amount on File
Deed Sale	Jun 7, 2021 · Amount on File
Prior Sale	Jun 25, 2014 · Amount on File
Deed Document Number	2021897499
Last Transfer Date	Apr 14, 2023
Transfer Doc	0000265152
Record Updated	Oct 29, 2026

January 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806
Transaction Type	Mortgage
Record Updated	Jan 24, 2024
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806

Mortgage

Document Number	0000031075
Date	Jan 16, 2024
Instrument	24-0031075

Lender

Name	LOS ANGELES FCU
Type	Credit Union
Address	SANDY, UT 84070

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount on Record
Term	180 Months
Due	Jan 26, 2039

April 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 25, 2023
Property Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806
Document Number	0000265152
Map Reference	MB 878 PG 94-98
Instrument Date	Apr 14, 2023
Instrument	23-0265152
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	Family Trust
Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806

June 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 7, 2021
Property Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806
Document Number	0000897499
Map Reference	MB 878 PG 94-98
Instrument Date	May 23, 2021
Instrument	21-0897499
Transaction Type	Transfer
Record Updated	Jun 16, 2021
Title Company	NOT AVAILABLE, PROVIDENT TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806

Mortgage

Document Number	0000897500
Date	Jun 7, 2021
Instrument	21-0897500

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2051

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	PROVIDENT TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21505 AMBUSHERS ST, DIAMOND BAR, CA 91765-3806

Mortgage

Document Number	0001015636
Date	Aug 28, 2020
Instrument	20-1015636

Lender

Name	MK LENDING CORP
Type	Mortgage Company
Address	NORTH HOLLYWOOD, CA 91601

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 21505 Ambushers St was $12,549 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		$1,026,793 (+2%) Land $736,973 Building $289,820
2025	$12,549.00 Homeowner's exemption	$1,006,661 Land $722,523 Building $284,138
2023	$11,712.00 (+2.13%) Homeowner's exemption	$967,572 Land $694,467 Building $273,105
2022	$11,468.00

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

Flood

FEMA maps place 21505 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 21505 Ambushers St is moderate, ranking above 44% of the US, with a 0.06% annual chance of wildfire.

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

Wildfire Risk	Moderate above 44% of the US · lower than 74% of California
Wildfire Likelihood	0.06% 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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