20311 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20311 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,320 sqft · built 1969
Lot Size	0.175 acres (7,638 sqft)
Owner	2 Individual Names on Record
Last Sale	$579,000 (May 2018)
Tax Bill	$8,491 (2025)
Deeds & Mortgages	Feb 2021 Mortgage Sep 2021 Mortgage + 5 more
Flood Zone	Zone X (minimal risk)
APN	`8762-030-037`

Property Details

APN / Parcel Number

Primary APN	`8762-030-037`
Alternative APN	`8762030030`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,320 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1969
Effective Year Built	Effective 1969
Construction Type	Wood
Lot Area	7,638 sqft (0.175 acres)

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	20311 FLINTGATE DR
City	WALNUT
State	CA
Zip	91789-3731
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18500*
Legal Description	TR=28258 EX OF ST LOT 75
Legal Subdivision	28258
Legal Tract	28258
Legal Block	1
Legal Lot Number	75
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1020
Census Tract	403326

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	20311 FLINTGATE DR, WALNUT, CA 91789-3731
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Feb 8, 2021	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC
Sep 22, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
Jan 28, 2022	Deed of Trust, Mortgage · Line of Credit CALIFORNIA CU
Mar 21, 2020	Deed of Trust, Mortgage · Conventional with PMI LOANDEPOT.COM LLC
May 16, 2018	Affidavit of Death, Transfer CORINTHIAN TITLE COMPANY
May 16, 2018	Grant Deed, Transfer · Conventional with PMI CALIFORNIA CU
May 16, 2018	Affidavit of Death, Transfer CORINTHIAN TITLE COMPANY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 16, 2018 · Amount on Record
Deed Sale	May 16, 2018 · Amount on Record
Deed Document Number	2018481367
Prior Transfer Date	Sep 5, 2014
Prior Transfer Doc	0000966623
Record Updated	Oct 29, 2026

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Transaction Type	Mortgage
Record Updated	Oct 25, 2022
Title Company	AMERICAN COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20311 FLINTGATE DR, WALNUT, CA 91789-3731

Mortgage

Document Number	0000216868
Date	Feb 8, 2021
Instrument	21-0216868

Lender

Name	LOANDEPOT.COM LLC
Type	Mortgage Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	359 Months
Due	Jan 1, 2051

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Transaction Type	Mortgage
Record Updated	Oct 25, 2022
Title Company	WFG LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20311 FLINTGATE DR, WALNUT, CA 91789-3731

Mortgage

Document Number	0001444634
Date	Sep 22, 2021
Instrument	21-1444634

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Oct 1, 2041

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Transaction Type	Mortgage
Record Updated	Oct 25, 2022
Title Company	CALIFORNIA MEMBERS TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20311 FLINGATE DR, WALNUT, CA 91789-3731

Mortgage

Document Number	0000110990
Date	Jan 28, 2022
Instrument	22-0110990

Lender

Name	CALIFORNIA CU
Type	Credit Union
Address	GLENDALE, CA 91209

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Jan 27, 2052

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Document Number	0000393959
Instrument Date	Mar 21, 2020
Transaction Type	Mortgage
Record Updated	Apr 17, 2020
Title Company	AMERICAN COAST TITLE COMPANY, AMERICAN COAST TITLE CO.

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	20311 FLINTGATE DR WALNUT CA 917893731, WALNUT, CA 91789-3731

Mortgage

Document Number	0000393959
Date	Apr 8, 2020
Instrument	393959

Lender

Name	LOANDEPOT.COM LLC
Type	Funding / Finance Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Apr 7, 2050

May 2018: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	LOS ANGELES CA
Recording Date	May 16, 2018
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Document Number	0000481366
Instrument Date	May 4, 2018
Instrument	481366
Transaction Type	Transfer
Record Updated	May 21, 2018
Title Company	CORINTHIAN TITLE COMPANY

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	7150 COTTAGE GROVE DR EASTVALE CA 928803494, EASTVALE, CA 92880-3494

May 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	May 16, 2018
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Document Number	0000481367
Instrument Date	Apr 16, 2018
Instrument	481367
Transaction Type	Transfer
Record Updated	May 21, 2018
Title Company	CORINTHIAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$636.90
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	20311 FLINTGATE DR WALNUT CA 917893731, WALNUT, CA 91789-3731

Mortgage

Document Number	481368
Date	May 16, 2018
Instrument	481368

Lender

Name	CALIFORNIA CU
Type	Credit Union
Address	GLENDALE, CA 91203

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	May 15, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.75%

May 2018: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	LOS ANGELES CA
Recording Date	May 16, 2018
Property Address	20311 FLINTGATE DR, DIAMOND BAR, CA 91789-3731
Document Number	0000481365
Instrument Date	Apr 16, 2018
Instrument	481365
Transaction Type	Transfer
Record Updated	May 21, 2018
Title Company	CORINTHIAN TITLE COMPANY

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	7150 COTTAGE GROVE DR EASTVALE CA 928803494, EASTVALE, CA 92880-3494

Tax Assessment & Valuation

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		$671,972 (+2%) Land $533,170 Building $138,802
2025	$8,491.00 (+7.35%)	$658,797 (+4.04%) Land $522,716 Building $136,081
2023	$7,910.00 (+2.12%)	$633,217 Land $502,419 Building $130,798
2022	$7,746.00

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

Flood

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

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

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% 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 458 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, GeoLinks, Verizon.

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