20504 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20504 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,330 sqft · built 1966
Lot Size	0.144 acres (6,291 sqft)
Owner	Company Name on Record
Last Sale	$599,000 (Nov 2017)
Tax Bill	$8,635 (2025)
Deeds & Mortgages	May 2022 Mortgage Nov 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8762-033-038`

Property Details

APN / Parcel Number

Primary APN	`8762-033-038`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Building Area	1,330 sqft Living Area

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1966
Construction Type	Wood
Lot Area	6,291 sqft (0.144 acres)

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	20504 FLINTGATE DR
City	WALNUT
State	CA
Zip	91789-3735
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCRA06
Legal Description	TRACT NO 25391 LOT 87
Legal Subdivision	25391
Legal Tract	25391
Legal Block	1
Legal Lot Number	87
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1021
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	Company Name on Record
Mailing Address	20504 FLINTGATE DR, WALNUT, CA 91789-3735
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
May 19, 2022	Deed of Trust, Mortgage · Conventional Mortgage BAY VALLEY MORTGAGE GROUP
Nov 29, 2017	Grant Deed, Transfer · Conventional Mortgage BAY VALLEY MORTGAGE GROUP

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 29, 2017 · Amount on Record
Deed Sale	Nov 29, 2017 · Amount on Record
Deed Document Number	20171371110
Last Transfer Date	Mar 18, 2024
Transfer Doc	0000332266
Record Updated	Oct 29, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20504 FLINTGATE DR, DIAMOND BAR, CA 91789-3735
Transaction Type	Mortgage
Record Updated	May 26, 2022
Title Company	FIDELITY-SHERMAN OAKS, FIDELITY SHERMAN OAKS

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20504 FLINTGATE DR, DIAMOND BAR, CA 91789-3735

Mortgage

Document Number	0000543294
Date	May 19, 2022
Instrument	22-0543294

Lender

Name	BAY VALLEY MORTGAGE GROUP
Type	Mortgage Company
Address	GARDEN GROVE, CA 92841

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2052

November 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 29, 2017
Property Address	20504 FLINTGATE DR, DIAMOND BAR, CA 91789-3735
Document Number	0001371110
Map Reference	MB731 PG93-96
Instrument Date	Nov 2, 2017
Instrument	17-1371110
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	NORTH AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
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	20504 FLINTGATE DR, DIAMOND BAR, CA 91789-3735

Mortgage

Document Number	0001371111
Date	Nov 29, 2017
Instrument	17-1371111

Lender

Name	BAY VALLEY MORTGAGE GROUP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 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		$695,066 (+2%) Land $556,032 Building $139,034
2025	$8,635.00 (+7.23%) Homeowner's exemption	$681,438 (+4.04%) Land $545,130 Building $136,308
2023	$8,053.00 (+2.14%) Homeowner's exemption	$654,979 Land $523,963 Building $131,016
2022	$7,884.00

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 496 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: GeoLinks, Verizon.

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