1015 Cogburn Ln, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 1015 Cogburn Ln, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,323 sqft · built 1983
Lot Size	0.151 acres (6,562 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,045,000 (Aug 2023)
Tax Bill	$13,123 (2025)
Deeds & Mortgages	Aug 2023 Sale & Mortgage Mar 2023 Line of Credit + 2 more
Flood Zone	Zone X (minimal risk)
APN	`8717-029-042`

Property Details

APN / Parcel Number

Primary APN	`8717-029-042`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	10 Rooms
Stories	1 Story
Building Area	1,323 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1983
Effective Year Built	Effective 1983
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Tile
Lot Area	6,562 sqft (0.151 acres)
Lot Dimensions	94 ft deep x 64 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1015 COGBURN LN
City	DIAMOND BAR
State	CA
Zip	91765-4108
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR3800025
Legal Description	*TR=37034 LOT 31
Legal Subdivision	37034
Legal Tract	37034
Legal Block	2
Legal Lot Number	31
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2009
Census Tract	403319

Owner

Source: Los Angeles County records, as of October 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	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 16, 2023	Grant Deed, Transfer · Conventional Mortgage EAST WEST BANK
Mar 17, 2023	Deed of Trust, Mortgage · Line of Credit SCHOOLSFIRST FCU
May 5, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUILD MORTGAGE CO
Jul 21, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage GUILD MORTGAGE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 16, 2023 · Amount on Record
Deed Sale	Aug 16, 2023 · Amount on Record
Prior Sale	Sep 29, 2000 · Amount on Record
Deed Document Number	2023541359
Prior Transfer Date	Jul 14, 2020
Prior Transfer Doc	0000808680
Record Updated	Oct 29, 2026

August 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 16, 2023
Property Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108
Document Number	0000541359
Map Reference	MB 989 PG 9-11
Instrument Date	Jun 28, 2023
Instrument	23-0541359
Transaction Type	Transfer
Record Updated	Aug 24, 2023
Title Company	LAWYERS TITLE

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	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108

Mortgage

Document Number	0000541360
Date	Aug 16, 2023
Instrument	23-0541360

Lender

Name	EAST WEST BANK
Type	Bank

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	6.87%
Type Change Date	Sep 1, 2028
Change Frequency	Annually
Min Rate At Change	4.87%
Max Rate At Change	8.87%
Index	1-Year T-Bill
Max Rate	12.8%

March 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108
Transaction Type	Mortgage
Record Updated	Mar 27, 2023
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108

Mortgage

Document Number	0000173687
Date	Mar 17, 2023
Instrument	23-0173687

Lender

Name	SCHOOLSFIRST FCU
Type	Credit Union
Address	TUSTIN, CA 92780

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108
Transaction Type	Mortgage
Record Updated	May 12, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108

Mortgage

Document Number	0000715111
Date	May 5, 2021
Instrument	21-0715111

Lender

Name	GUILD MORTGAGE CO
Type	Mortgage Company
Address	SAN DIEGO, CA 92111

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 1, 2051

July 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Jul 21, 2020
Property Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108
Document Number	0000808680
Map Reference	MB 989 PG 9-11
Instrument Date	Jul 14, 2020
Instrument	20-0808680
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	FIRST AMERICAN TITLE COMPANY

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
Relationship	Joint Tenants
Address	1015 COGBURN LN, DIAMOND BAR, CA 91765-4108

Mortgage

Document Number	0000808681
Date	Jul 21, 2020
Instrument	20-0808681

Lender

Name	GUILD MORTGAGE CO
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Aug 1, 2035

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		$1,087,217 (+2%) Land $742,221 Building $344,996
2025	$13,123.00 (+175.46%) Homeowner's exemption	$1,065,900 (+194.4%) Land $727,668 Building $338,232
2023	$4,764.00 (+2.14%)	$362,062 (+2%) Land $194,643 Building $167,419
2022	$4,664.00	$354,964 Land $190,827 Building $164,137

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

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	Low lower than 98% of the US · lower than 98.4% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 464 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks.

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