23455 Robinbrook Pl, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23455 Robinbrook Pl, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,252 sqft · built 1976
Lot Size	0.185 acres (8,041 sqft)
Owner	2 Individual Names on Record
Last Sale	$860,000 (Dec 2018)
Tax Bill	$12,106 (2025)
Deeds & Mortgages	Sep 2019 Mortgage Dec 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8702-005-065`

Property Details

APN / Parcel Number

Primary APN	`8702-005-065`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,252 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1976
Architectural Style	Contemporary
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	8,041 sqft (0.185 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	23455 ROBINBROOK PL
City	DIAMOND BAR
State	CA
Zip	91765-2635
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18000*
Legal Description	*TR=31064 LOT 7
Legal Subdivision	31064
Legal Tract	31064
Legal Block	3
Legal Lot Number	7
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3007
Census Tract	403324

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	23455 ROBINBROOK PL, DIAMOND BAR, CA 91765-2635
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 3, 2019	Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA
Dec 18, 2018	Grant Deed, Transfer · ARM JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 18, 2018 · Amount on Record
Deed Sale	Dec 18, 2018 · Amount on Record
Prior Sale	Feb 17, 2006 · Amount on Record
Deed Document Number	20181280887
Prior Transfer Date	Jun 15, 2005
Prior Transfer Doc	0001498997
Record Updated	Oct 29, 2026

September 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23455 ROBINBROOK PL, DIAMOND BAR, CA 91765-2635
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMROCK TITLE CALIFORNIA INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000894361
Date	Sep 3, 2019
Instrument	19-0894361

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Sep 1, 2034

December 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 18, 2018
Property Address	23455 ROBINBROOK PL, DIAMOND BAR, CA 91765-2635
Document Number	0001280887
Map Reference	MB 860 PG 16&17
Instrument Date	Nov 26, 2018
Instrument	18-1280887
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	STEWART 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	Notice of Default Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	23455 ROBINBROOK PL, DIAMOND BAR, CA 91765-2635

Mortgage

Document Number	0001280888
Date	Dec 18, 2018
Instrument	18-1280888

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	4.5%
Type Change Date	Jan 1, 2026
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	9.5%
Index	1-Year LIBOR
Max Rate	9.5%

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		$978,527 (+2%) Land $581,883 Building $396,644
2025	$12,106.00 (+7.32%)	$959,341 (+4.04%) Land $570,474 Building $388,867
2023	$11,280.00 (+2.11%)	$922,091 Land $548,323 Building $373,768
2022	$11,047.00

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; 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 501 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
AT&T Fixed Wireless	100 / 20

May also be available: GeoLinks, T-Mobile, Verizon.

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