20437 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20437 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,714 sqft · built 1966
Lot Size	0.149 acres (6,477 sqft)
Owner	2 Individual Names on Record
Tax Bill	$3,809 (2025)
Deeds & Mortgages	Aug 2020 Mortgage Apr 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8762-034-013`

Property Details

APN / Parcel Number

Primary APN	`8762-034-013`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	1,714 sqft Living Area

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1966
Construction Type	Wood
Lot Area	6,477 sqft (0.149 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	20437 FLINTGATE DR
City	WALNUT
State	CA
Zip	91789-3733
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCRA06
Legal Description	TRACT NO 25391 LOT 30
Legal Subdivision	25391
Legal Tract	25391
Legal Block	1
Legal Lot Number	30
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	20437 FLINTGATE DR, WALNUT, CA 91789-3733
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 20, 2020	Deed of Trust, Mortgage · Conventional Mortgage ROYAL PACIFIC FUNDING CORP
Apr 21, 2020	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC
Apr 28, 2017	Grant Deed, Transfer · FHA Mortgage IMPAC MORTGAGE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Mar 27, 2010
Transfer Doc	0000463453
Record Updated	Oct 29, 2026

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20437 FLINTGATE DR, DIAMOND BAR, CA 91789-3733
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	TICOR TTL ORANGE CNTY BRANCH

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000972288
Date	Aug 20, 2020
Instrument	20-0972288

Lender

Name	ROYAL PACIFIC FUNDING CORP
Type	Lending Institution
Address	COSTA MESA, CA 92626

Agreement

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

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20437 FLINTGATE DR, DIAMOND BAR, CA 91789-3733
Document Number	0000466453
Instrument Date	Apr 21, 2020
Transaction Type	Mortgage
Record Updated	May 4, 2020
Title Company	PROVIDENT TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	20437 FLINIGATE DR WALNUT CA 91789, WALNUT, CA 91789

Mortgage

Document Number	0000466453
Date	Apr 28, 2020
Instrument	466453

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 27, 2050

April 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 28, 2017
Property Address	20437 FLINTGATE DR, DIAMOND BAR, CA 91789-3733
Document Number	0000475817
Map Reference	MB731 PG93-96
Instrument Date	Feb 23, 2017
Instrument	17-0475817
Transaction Type	Transfer
Record Updated	Sep 22, 2021

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	20437 FLINTGATE DR, WALNUT, CA 91789-3733

Mortgage

Document Number	0000475818
Date	Apr 28, 2017
Instrument	17-0475818

Lender

Name	IMPAC MORTGAGE
Type	Mortgage Company

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2047

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		$267,142 (+1.99%) Land $103,537 Building $163,605
2025	$3,809.00 (+9.74%) Homeowner's exemption	$261,928 (+4.04%) Land $101,507 Building $160,421
2023	$3,471.00 (+2.18%) Homeowner's exemption	$251,759 Land $97,566 Building $154,193
2022	$3,397.00

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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