507 Jon Ct, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 507 Jon Ct, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,948 sqft · built 1987
Lot Size	0.75 acres (32,680 sqft)
Owner	Individual Name on Record
Tax Bill	$8,654 (2025)
Deeds & Mortgages	Sep 2025 Transfer Sep 2025 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`8281-038-028`

Property Details

APN / Parcel Number

Primary APN	`8281-038-028`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	1,948 sqft Living Area

Exterior

Year Built	Built 1987
Effective Year Built	Effective 1991
Construction Type	Wood
Lot Area	32,680 sqft (0.75 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	507 JON CT
City	DIAMOND BAR
State	CA
Zip	91765-1851
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR115000-
Legal Description	TR=42579 LOT 42
Legal Subdivision	42579
Legal Tract	42579
Legal Block	1
Legal Lot Number	42
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1000
Census Tract	403321

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	Individual Name on Record
Mailing Address	507 JON CT, DIAMOND BAR, CA 91765-1851
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 24, 2025	Intrafamily Transfer, Transfer
Sep 24, 2025	Affidavit of Death of Joint Tenant, Transfer
Aug 7, 2023	Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA
Dec 31, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Nov 19, 2019
Transfer Doc	0001466292
Record Updated	Oct 29, 2026

September 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Sep 24, 2025
Property Address	507 JON CT, DIAMOND BAR, CA 91765-1851
Document Number	0000656512
Map Reference	MB 1033 PG 93-97
Instrument Date	Sep 5, 2025
Instrument	25-0656512
Transaction Type	Transfer
Record Updated	Oct 7, 2025

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	507 JON CT, DIAMOND BAR, CA 91765-1851

September 2025: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	LOS ANGELES CA
Recording Date	Sep 24, 2025
Property Address	507 JON CT, DIAMOND BAR, CA 91765-1851
Document Number	0000656511
Map Reference	MB 1033 PG 93-97
Instrument Date	Sep 5, 2025
Instrument	25-0656511
Transaction Type	Transfer
Record Updated	Oct 7, 2025

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	507 JON CT, DIAMOND BAR, CA 91765-1851

August 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	507 JON CT, DIAMOND BAR, CA 91765-1851
Transaction Type	Mortgage
Record Updated	Aug 21, 2023
Title Company	NOT AVAILABLE, DOMA TITLE OF CALIFORNIA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	507 JON CT, DIAMOND BAR, CA 91765-1851

Mortgage

Document Number	0000520221
Date	Aug 7, 2023
Instrument	23-0520221

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2053

December 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 31, 2019
Property Address	507 JON CT, DIAMOND BAR, CA 91765-1851
Document Number	0001466292
Instrument Date	Nov 19, 2019
Instrument	1466292
Transaction Type	Transfer
Record Updated	Jan 23, 2020
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	507 JON CT DIAMOND BAR CA 917651851, DIAMOND BAR, CA 91765-1851

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	Pomona Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$623,089 (+2%) Land $168,877 Building $454,212
2025	$8,654.00 (+12.36%) Homeowner's exemption	$610,872 (+4.04%) Land $165,566 Building $445,306
2023	$7,702.00 (+2.23%) Homeowner's exemption	$587,153 Land $159,138 Building $428,015
2022	$7,534.00

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	Moderate above 46% of the US · lower than 72% of California
Wildfire Likelihood	0.08% annual chance
Exposure	Direct burnable vegetation

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 487 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
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: GeoLinks.

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