20503 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20503 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,867 sqft · built 1966
Lot Size	0.137 acres (5,965 sqft)
Owner	2 Company Names on Record
Last Sale	$345,000 (Apr 2010)
Tax Bill	$6,010 (2025)
Deeds & Mortgages	Oct 2020 Mortgage Jul 2018 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8762-034-023`

Property Details

APN / Parcel Number

Primary APN	`8762-034-023`
Alternative APN	`8762034004`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Building Area	1,867 sqft Living Area

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1966
Construction Type	Wood
Lot Area	5,965 sqft (0.137 acres)

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	20503 FLINTGATE DR
City	WALNUT
State	CA
Zip	91789-3736
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCRA06
Legal Description	TR=25391 EX OF ST LOT 21
Legal Subdivision	25391
Legal Tract	25391
Legal Block	1
Legal Lot Number	21
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 Company Names on Record
Mailing Address	201 FLYNN RD, CAMARILLO, CA 93012-8058
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Date	Document
Oct 29, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage NEW WAVE LENDING GROUP INC
Jul 10, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Nov 29, 2016	Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 8, 2010 · Amount on Record
Deed Sale	Apr 8, 2010 · Amount on Record
Prior Sale	Dec 16, 2009 · Amount on Record
Deed Document Number	2010479140
Last Transfer Date	Sep 11, 2024
Transfer Doc	0000758322
Record Updated	Oct 29, 2026

October 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Oct 29, 2020
Property Address	20503 FLINTGATE DR, DIAMOND BAR, CA 91789-3736
Document Number	0001359035
Map Reference	MB 731 PG 93-96
Instrument Date	Oct 16, 2020
Instrument	20-1359035
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	PROVIDENT TITLE COMPANY

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	Revocable Living Trust
Address	21102 WOODGLEN CT, WALNUT, CA 91789-5009

Mortgage

Document Number	0001359036
Date	Oct 29, 2020
Instrument	20-1359036

Lender

Name	NEW WAVE LENDING GROUP INC
Type	Non-Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2050

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jul 10, 2018
Property Address	20503 FLINTGATE DR, DIAMOND BAR, CA 91789-3736
Document Number	0000685750
Instrument Date	Jun 19, 2018
Instrument	685750
Transaction Type	Transfer
Record Updated	Jul 23, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	21102 WOODGLEN CT WALNUT CA 917895009, WALNUT, CA 91789-5009

November 2016: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20503 FLINTGATE DR, DIAMOND BAR, CA 91789-3736
Document Number	0000027983
Instrument Date	Nov 29, 2016
Transaction Type	Mortgage
Record Updated	Jan 16, 2017
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21102 WOODGLEN CT WALNUT CA 917895009, WALNUT, CA 91789-5009

Mortgage

Document Number	0000027983
Date	Jan 9, 2017
Instrument	27983

Lender

Name	BANK OF AMERICA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	240 Months
Due	Jan 8, 2037

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		$452,973 (+2%) Land $330,401 Building $122,572
2025	$6,010.00 (+5.81%)	$444,092 (+4.04%) Land $323,923 Building $120,169
2024	$5,680.00 (+2.36%)
2023	$5,549.00 (+2.14%)	$426,849 Land $311,346 Building $115,503
2022	$5,433.00

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	Not rated no burnable land 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 104 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
Starlink Satellite	280 / 30
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks, Verizon.

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