20459 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20459 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	5 bd · 2 ba · 2,105 sqft · built 1966
Lot Size	0.143 acres (6,213 sqft)
Owner	2 Individual Names on Record
Last Sale	$390,000 (Mar 2012)
Tax Bill	$6,516 (2025)
Deeds & Mortgages	May 2021 Mortgage Jul 2019 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8762-034-010`

Property Details

APN / Parcel Number

Primary APN	`8762-034-010`

Interior

Bedrooms	5 Beds
Full Baths	2 Baths
Building Area	2,105 sqft Living Area

Exterior

Year Built	Built 1966
Effective Year Built	Effective 1967
Construction Type	Wood
Lot Area	6,213 sqft (0.143 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	20459 FLINTGATE DR
City	WALNUT
State	CA
Zip	91789-3733
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCRA16000*
Legal Description	TRACT NO 25391 LOT 27
Legal Subdivision	25391
Legal Tract	25391
Legal Block	1
Legal Lot Number	27
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 May 21, 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	20459 FLINTGATE DR, WALNUT, CA 91789-3733
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 4, 2021	Deed of Trust, Mortgage · Conventional Mortgage J & P REAL ESTATE SERVICES INC
Jul 30, 2019	Deed of Trust, Mortgage · Conventional Mortgage FIRST CITY CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 26, 2012 · Amount on Record
Deed Sale	Mar 26, 2012 · Amount on Record
Prior Sale	Aug 2, 2005 · Amount on Record
Deed Document Number	2012456699
Prior Transfer Date	Jun 30, 2006
Prior Transfer Doc	0001509832
Record Updated	Sep 20, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20459 FLINTGATE DR, DIAMOND BAR, CA 91789-3733
Transaction Type	Mortgage
Record Updated	May 12, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20459 FLINTGATE DR, WALNUT, CA 91789-3733

Mortgage

Document Number	0000708719
Date	May 4, 2021
Instrument	21-0708719

Lender

Name	J & P REAL ESTATE SERVICES INC
Type	Non-Lending Institution
Address	SAN GABRIEL, CA 91776

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	May 1, 2036

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	20459 FLINTGATE DR, DIAMOND BAR, CA 91789-3733
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000748579
Date	Jul 30, 2019
Instrument	19-0748579

Lender

Name	FIRST CITY CU
Type	Credit Union
Address	LOS ANGELES, CA 90012

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Aug 1, 2034

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of May 21, 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
2025	$6,516.00 (+8.62%) Homeowner's exemption	$489,848 (+4.04%) Land $281,098 Building $208,750
2023	$5,999.00 (+2.15%) Homeowner's exemption	$470,829 Land $270,184 Building $200,645
2022	$5,873.00

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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