1602 Summitridge Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 1602 Summitridge Dr, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 3,203 sqft · built 1986
Lot Size	0.171 acres (7,448 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,570,000 (Dec 2023)
Tax Bill	$20,274 (2025)
Deeds & Mortgages	Dec 2023 Sale & Mortgage Jan 2017 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8713-047-023`

Property Details

APN / Parcel Number

Primary APN	`8713-047-023`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	3,203 sqft Living Area

Exterior

Year Built	Built 1986
Effective Year Built	Effective 1986
Construction Type	Wood
Lot Area	7,448 sqft (0.171 acres)
Lot Dimensions	109 ft deep x 68 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1602 SUMMITRIDGE DR
City	DIAMOND BAR
State	CA
Zip	91765-4335
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCRPD20000
Legal Description	TR=42559 LOT 23
Legal Subdivision	42559
Legal Tract	42559
Legal Block	3
Legal Lot Number	23
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3002
Census Tract	403324

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	2 Individual Names on Record
Mailing Address	PO BOX 80662, SAN MARINO, CA 91118-8662
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Dec 29, 2023	Grant Deed, Transfer · Conventional Mortgage CATHAY BANK
Jan 19, 2017	Grant Deed, Transfer · ARM CTBC BANK CORP USA
Jan 19, 2017	Quit Claim Deed, Transfer WESTERN RESOURCES TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 29, 2023 · Amount on Record
Deed Sale	Dec 29, 2023 · Amount on Record
Prior Sale	Jan 19, 2017 · Amount on Record
Deed Document Number	2023919915
Prior Transfer Date	Nov 30, 2016
Prior Transfer Doc	0000078041
Record Updated	Oct 29, 2026

December 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 29, 2023
Property Address	1602 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4335
Document Number	0000919915
Map Reference	MB 1032 PG 69-72
Instrument Date	Dec 14, 2023
Instrument	23-0919915
Transaction Type	Transfer
Record Updated	Jan 11, 2024
Title Company	STEWART TITLE, STEWART TITLE OF CA INC

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	Community Property with Right of Survivorship
Address	PO BOX 80662, SAN MARINO, CA 91118-8662

Mortgage

Document Number	0000919917
Date	Dec 29, 2023
Instrument	23-0919917

Lender

Name	CATHAY BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2054

Interest

Rate Type	Adjustable Rate
Rate	7.25%
Type Change Date	Jan 1, 2027
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	13.2%
Index	1-Year T-Bill
Max Rate	13.2%

January 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 19, 2017
Property Address	1602 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4335
Document Number	0000078042
Map Reference	MB1032 PG69-72
Instrument Date	Jan 6, 2017
Instrument	17-0078042
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	WESTERN RESOURCES 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
Address	1602 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4335

Mortgage

Document Number	0000078043
Date	Jan 19, 2017
Instrument	17-0078043

Lender

Name	CTBC BANK CORP USA
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	4.5%
Adjustable	Adjustable Rate Rider
Type Change Date	Feb 1, 2020
Change Frequency	Annually
Min Rate At Change	4.5%
Max Rate At Change	9.5%
Index	1-Year LIBOR
Max Rate	10.5%

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 19, 2017
Property Address	1602 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4335
Document Number	0000078041
Instrument Date	Nov 30, 2016
Instrument	78041
Transaction Type	Transfer
Record Updated	Feb 2, 2017
Title Company	WESTERN RESOURCES TITLE

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	1602 SUMMITRIDGE DR DIAMOND BAR CA 917654335, DIAMOND BAR, CA 91765-4335

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		$1,113,402 (-30.47%) Land $481,001 Building $632,401
2025	$20,274.00 (+28.41%) Homeowner's exemption	$1,601,400 (+27.04%) Land $764,898 Building $836,502
2023	$15,789.00 (+2.2%)	$1,260,534 Land $557,759 Building $702,775
2022	$15,449.00

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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.03% 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 154 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 50
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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