20432 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20432 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property TypeSingle Family Home
Details5 bd · 2 ba · 1,936 sqft · built 1965
Lot Size0.143 acres (6,237 sqft)
Owner2 Individual Names on File
Last Sale$680,000 (Dec 2020)
Tax Bill$9,467 (2025)
Deeds & MortgagesFeb 2022 Mortgage
Dec 2020 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN8762-033-011

Property Details

APN / Parcel Number

Primary APN8762-033-011

Interior

Bedrooms5 Beds
Full Baths2 Baths
Building Area1,936 sqft Living Area

Exterior

Year BuiltBuilt 1965
Effective Year BuiltEffective 1970
Construction TypeWood
Lot Area6,237 sqft (0.143 acres)

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address20432 FLINTGATE DR
CityWALNUT
StateCA
Zip91789-3752
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeLCRA06
Legal DescriptionTRACT NO 25391 LOT 60
Legal Subdivision25391
Legal Tract25391
Legal Block1
Legal Lot Number60
JurisdictionLOS ANGELES CA
Township / Civil DivisionEAST SAN GABRIEL VALLEY
Census Block Group1
Census Block1021
Census Tract403326

Owner

20432 Flintgate Dr is owned and occupied by two individuals who bought it in December 2020.

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

Owner of Record2 Individual Names on File
Mailing Address20432 FLINTGATE DR, WALNUT, CA 91789-3752
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Feb 17, 2022Deed of Trust, Mortgage · Conventional Mortgage
NMSI INC
Dec 14, 2020Grant Deed, Transfer · Conventional Mortgage
EAST WEST BANK

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 14, 2020 · Amount on File
Deed SaleDec 14, 2020 · Amount on File
Prior SaleFeb 6, 2013 · Amount on File
Deed Document Number20201648173
Prior Transfer DateSep 25, 1996
Prior Transfer Doc0001713781
Record UpdatedOct 29, 2026

February 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionLOS ANGELES CA
Property Address20432 FLINTGATE DR, DIAMOND BAR, CA 91789-3752
Transaction TypeMortgage
Record UpdatedJul 20, 2022
Title CompanyORABGE COAST TITLE, ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address20432 GLINGATE DRIVE, DIAMOND BAR, CA 91789

Mortgage

Document Number0000195153
DateFeb 17, 2022
Instrument22-0195153
Lender
NameNMSI INC
TypeMortgage Company
AddressLOS ANGELES, CA 90010
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueMar 1, 2052

December 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionLOS ANGELES CA
Recording DateDec 14, 2020
Property Address20432 FLINTGATE DR, DIAMOND BAR, CA 91789-3752
Document Number0001648173
Map ReferenceMB 731 PG 93-96
Instrument DateNov 16, 2020
Instrument20-1648173
Transaction TypeTransfer
Record UpdatedJul 20, 2022
Title CompanyLAWYERS TITLE

Transaction

AmountAmount on Record
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property with Right of Survivorship
Address20432 FLINTGATE DR, DIAMOND BAR, CA 91789-3752

Mortgage

Document Number0001648174
DateDec 14, 2020
Instrument20-1648174
Lender
NameEAST WEST BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueJan 1, 2051
Interest
Rate TypeAdjustable Rate
Rate4.12%
Type Change DateJan 1, 2026
Change FrequencyAnnually
Min Rate At Change3.25%
Max Rate At Change6.12%
Index1-Year CMT
Max Rate10.1%

Tax Assessment & Valuation

The 2025 property tax bill for 20432 Flintgate Dr was $9,467.

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyLos Angeles County
MunicipalityDiamond Bar City
Unified School DistrictWalnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$750,772 (+2%) Land $593,553 Building $157,219
2025$9,467.00$736,052 Land $581,915 Building $154,137
2023$8,816.00 (+2.11%)$707,471 Land $559,319 Building $148,152
2022$8,634.00

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

Flood

FEMA maps place 20432 Flintgate Dr in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 30, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 20432 Flintgate Dr has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot 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 SystemWALNUT VALLEY WATER DISTRICT
serves 100,941 people · EPA ID CA1910234
Water SourcePurchased surface water from several systems
Last State InspectionJun 2023
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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

ProviderMax 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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