1230 Glenthorpe Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 1230 Glenthorpe Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 2,252 sqft · built 1979
Lot Size	0.168 acres (7,307 sqft)
Owner	2 Individual Names on Record
Last Sale	$769,000 (Aug 2020)
Tax Bill	$10,542 (2025)
Deeds & Mortgages	Aug 2020 Transfer Aug 2020 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8763-009-004`

Property Details

APN / Parcel Number

Primary APN	`8763-009-004`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Building Area	2,252 sqft Living Area

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1988
Construction Type	Wood
Lot Area	7,307 sqft (0.168 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1230 GLENTHORPE DR
City	WALNUT
State	CA
Zip	91789-3815
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCC2*
Legal Description	*TR=33257 LOT 100
Legal Subdivision	33257
Legal Tract	33257
Legal Block	3
Legal Lot Number	100
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3000
Census Tract	408707

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	1230 GLENTHORPE DR, WALNUT, CA 91789-3815
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 4, 2020	Quit Claim Deed, Transfer CHICAGO TITLE COMPANY, CHICAGO TITLE CO
Aug 4, 2020	Grant Deed, Transfer · Conventional Mortgage BANK OF THE WEST
Nov 15, 2017	Deed of Trust, Mortgage · VA Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 4, 2020 · Amount on Record
Deed Sale	Aug 4, 2020 · Amount on Record
Deed Document Number	2020885482
Prior Transfer Date	Jul 29, 2020
Prior Transfer Doc	0000885481
Record Updated	Oct 29, 2026

August 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 4, 2020
Property Address	1230 GLENTHORPE DR, DIAMOND BAR, CA 91789-3815
Document Number	0000885481
Instrument Date	Jul 29, 2020
Instrument	885481
Transaction Type	Transfer
Record Updated	Aug 11, 2020
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	15694 NEW HAMPTON ST HACIENDA HEIGHTS CA 917454136, HACIENDA HEIGHTS, CA 91745-4136

August 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 4, 2020
Property Address	1230 GLENTHORPE DR, DIAMOND BAR, CA 91789-3815
Document Number	0000885482
Instrument Date	Jun 18, 2020
Instrument	885482
Transaction Type	Transfer
Record Updated	Aug 11, 2020
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$846.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	1230 GLENTHORPE DR DIAMOND BAR CA 917893815, DIAMOND BAR, CA 91789-3815

Mortgage

Document Number	885483
Date	Aug 4, 2020
Instrument	885483

Lender

Name	BANK OF THE WEST
Type	Bank
Address	OMAHA, NE 68154

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 3, 2050

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	1230 GLENTHORPE DR, DIAMOND BAR, CA 91789-3815
Document Number	0001355737
Instrument Date	Nov 15, 2017
Transaction Type	Mortgage
Record Updated	Dec 4, 2017
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	1230 GLENTHORPE DR WALNUT CA 917893815, WALNUT, CA 91789-3815

Mortgage

Document Number	0001355737
Date	Nov 27, 2017
Instrument	1355737

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	VA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Nov 26, 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		$849,032 (+2%) Land $559,876 Building $289,156
2025	$10,542.00 (+7.62%) Homeowner's exemption	$832,386 (+4.04%) Land $548,899 Building $283,487
2023	$9,796.00 (+2.13%) Homeowner's exemption	$800,066 Land $527,586 Building $272,480
2022	$9,592.00

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 286 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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