23450 Robinbrook Pl, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23450 Robinbrook Pl, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,255 sqft · built 1976
Lot Size	0.152 acres (6,599 sqft)
Owner	2 Company Names on Record
Tax Bill	$3,105 (2025)
Deeds & Mortgages	Oct 2021 Mortgage May 2019 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`8702-005-050`

Property Details

APN / Parcel Number

Primary APN	`8702-005-050`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	2,255 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1976
Architectural Style	Contemporary
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	6,599 sqft (0.152 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	23450 ROBINBROOK PL
City	DIAMOND BAR
State	CA
Zip	91765-2634
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18000*
Legal Description	TRACT NO 31063 LOT 19
Legal Subdivision	31063
Legal Tract	31063
Legal Block	3
Legal Lot Number	19
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 May 21, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	23450 ROBINBROOK PL, DIAMOND BAR, CA 91765-2634
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

Deeds, Mortgages & Sale History

Date	Document
Oct 29, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
May 3, 2019	Deed of Trust, Mortgage · Line of Credit US BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jul 16, 2012
Transfer Doc	0001177690
Record Updated	Sep 20, 2026

October 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23450 ROBINBROOK PL, DIAMOND BAR, CA 91765-2634
Transaction Type	Mortgage
Record Updated	Nov 8, 2021
Title Company	ORABGE COAST TITLE, ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	23450 ROBINBROOK PL, DIAMOND BAR, CA 91765-2634

Mortgage

Document Number	0001625188
Date	Oct 29, 2021
Instrument	21-1625188

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2051

May 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23450 ROBINBROOK PL, DIAMOND BAR, CA 91765-2634
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000405485
Date	May 3, 2019
Instrument	19-0405485

Lender

Name	US BANK NA
Type	Bank
Address	LA JOLLA, CA 92037

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of May 21, 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
2025	$3,105.00 (+11.37%) Homeowner's exemption	$195,067 (+4.04%) Land $28,478 Building $166,589
2023	$2,788.00 (+2.2%) Homeowner's exemption	$187,494 Land $27,373 Building $160,121
2022	$2,728.00

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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