360 S Rock River Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 360 S Rock River Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,753 sqft · built 1973
Lot Size	0.212 acres (9,214 sqft)
Owner	Company Name on File
Last Sale	$570,000 (Jan 2019)
Tax Bill	$11,295 (2025)
Deeds & Mortgages	Apr 2026 Mortgage Jan 2022 Mortgage + 4 more
Flood Zone	Zone X (minimal risk)
APN	`8718-034-026`

Property Details

APN / Parcel Number

Primary APN	`8718-034-026`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,753 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1973
Effective Year Built	Effective 1975
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Gravel
Lot Area	9,214 sqft (0.212 acres)
Lot Dimensions	152 ft deep x 60 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	360 S ROCK RIVER RD
City	DIAMOND BAR
State	CA
Zip	91765-1559
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18000*
Legal Description	TRACT NO 28039 LOT 9
Legal Subdivision	28039
Legal Tract	28039
Legal Block	1
Legal Lot Number	9
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1018
Census Tract	403327

Owner

360 S Rock River Rd is owned by a company that bought it in January 2019.

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

Owner of Record	Company Name on File
Mailing Address	14956 DUKE LN, FONTANA, CA 92336-0903
Owner Type	Company

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

Date	Document
Apr 23, 2026	Deed of Trust, Mortgage · Conventional Mortgage NONE LISTED ON DOCUMENT
Jan 31, 2022	Deed of Trust, Mortgage · Conventional Mortgage OCMBC INC
Sep 2, 2021	Grant Deed, Transfer · Commercial Mortgage CENTER STREET LENDING VIII SEE LLC
Jan 29, 2019	Quit Claim Deed, Transfer ORANGE COAST TITLE COMPANY, ORANGE COAST TITLE CO
Jan 29, 2019	Quit Claim Deed, Transfer ORANGE COAST TITLE COMPANY, ORANGE COAST TITLE CO
Jan 29, 2019	Grant Deed, Transfer · Conventional Mortgage AMERICAN FINANCIAL NETWORK INC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 29, 2019 · Amount on File
Deed Sale	Jan 29, 2019 · Amount on File
Prior Sale	Feb 12, 2008 · Amount on File
Deed Document Number	201983332
Prior Transfer Date	Jan 28, 2019
Prior Transfer Doc	0000083330
Record Updated	Oct 29, 2026

April 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 23, 2026
Property Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559
Document Number	0000290142
Instrument Date	Mar 26, 2026
Instrument	2026290142
Transaction Type	Mortgage
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Limited Liability Partnership, 266
Address	14956 DUKE LN, FONTANA, CA 92336-0903

Mortgage

Document Number	0000290142,
Date	Apr 23, 2026
Instrument	2026290142

Lender

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	300 Months
Due	Apr 5, 2051

Interest

Rate Type	Adjustable Rate
Rate	5.98%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559
Transaction Type	Mortgage
Record Updated	Feb 8, 2022
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	14966 DUKE LN, FONTANA, CA 92336-0903

Mortgage

Document Number	0000118728
Date	Jan 31, 2022
Instrument	22-0118728

Lender

Name	OCMBC INC
Type	Mortgage Company
Address	IRVINE, CA 92612

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Feb 1, 2052

September 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Sep 2, 2021
Property Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559
Document Number	0001352576
Map Reference	MB 796 PG 1-3
Instrument Date	Aug 30, 2021
Instrument	21-1352576
Transaction Type	Transfer
Record Updated	Sep 13, 2021
Title Company	WFG NATIONAL TITLE CO OF CA

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	14956 DUKE LN, FONTANA, CA 92336-0903

Mortgage

Document Number	0001352577
Date	Sep 2, 2021
Instrument	21-1352577

Lender

Name	CENTER STREET LENDING VIII SEE LLC
Type	Non-Lending Institution

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

January 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 29, 2019
Property Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559
Document Number	0000083330
Instrument Date	Jan 28, 2019
Instrument	83330
Transaction Type	Transfer
Record Updated	Feb 7, 2019
Title Company	ORANGE COAST TITLE COMPANY, ORANGE COAST 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	Separate Estate/Property
Address	1123 BELLINGHAM DR OCEANSIDE CA 920572736, OCEANSIDE, CA 92057-2736

January 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 29, 2019
Property Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559
Document Number	0000083331
Instrument Date	Jan 16, 2019
Instrument	83331
Transaction Type	Transfer
Record Updated	Feb 7, 2019
Title Company	ORANGE COAST TITLE COMPANY, ORANGE COAST 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	Separate Estate/Property
Address	360 S ROCK RIVER RD DIAMOND BAR CA 917651559, DIAMOND BAR, CA 91765-1559

January 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 29, 2019
Property Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559
Document Number	0000083332
Map Reference	MB 796 PG 1-3
Instrument Date	Dec 21, 2018
Instrument	19-0083332
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	ORANGE COAST TITLE

Transaction

Amount	Amount on Record
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
Address	360 S ROCK RIVER RD, DIAMOND BAR, CA 91765-1559

Mortgage

Document Number	0000083333
Date	Jan 29, 2019
Instrument	19-0083333

Lender

Name	AMERICAN FINANCIAL NETWORK INC
Type	Funding / Finance Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Feb 1, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 360 S Rock River Rd was $11,295, up 9% from the year before.

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		$840,507 (+2%) Land $541,216 Building $299,291
2025	$11,295.00 (+8.97%)	$824,027 Land $530,604 Building $293,423
2024	$10,365.00 (+2.48%)
2023	$10,114.00 (+2.05%)	$792,030 Land $510,000 Building $282,030
2022	$9,911.00

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

Flood

FEMA maps place 360 S Rock River Rd in Zone X, an area of minimal flood risk.

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

Wildfire risk around 360 S Rock River Rd is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 97% of the US · lower than 97.8% of California
Wildfire Likelihood	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 296 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
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks.

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