1610 Summitridge Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 1610 Summitridge Dr, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 3,253 sqft · built 1986
Lot Size	0.178 acres (7,758 sqft)
Owner	2 Individual Names on File
Last Sale	$1,526,000 (Dec 2023)
Tax Bill	$19,820 (2025)
Deeds & Mortgages	Dec 2023 Sale May 2018 Sale
Flood Zone	Zone X (minimal risk)
APN	`8713-047-021`

Property Details

APN / Parcel Number

Primary APN	`8713-047-021`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	3,253 sqft Living Area

Exterior

Year Built	Built 1986
Effective Year Built	Effective 1986
Construction Type	Wood
Lot Area	7,758 sqft (0.178 acres)
Lot Dimensions	119 ft deep x 65 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1610 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 21
Legal Subdivision	42559
Legal Tract	42559
Legal Block	3
Legal Lot Number	21
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3002
Census Tract	403324

Owner

1610 Summitridge Dr is owned and occupied by two individuals who bought it in December 2023.

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

Owner of Record	2 Individual Names on File
Mailing Address	923 TERRACE LN W, 2, DIAMOND BAR, CA 91765-4569
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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
Dec 26, 2023	Grant Deed, Transfer WFT NATIONAL TITLE, WFG NATIONAL TITLE
May 8, 2018	Grant Deed, Transfer STEWART TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 26, 2023 · Amount on File
Deed Sale	Dec 26, 2023 · Amount on File
Prior Sale	May 8, 2018 · Amount on File
Deed Document Number	2023905698
Prior Transfer Date	Feb 25, 2014
Prior Transfer Doc	0000245226
Record Updated	Oct 29, 2026

December 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 26, 2023
Property Address	1610 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4335
Document Number	0000905698
Map Reference	MB 1032 PG 69-72
Instrument Date	Dec 11, 2023
Instrument	23-0905698
Transaction Type	Transfer
Record Updated	Jan 4, 2024
Title Company	WFT NATIONAL TITLE, WFG NATIONAL TITLE

Transaction

Amount	Amount 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
Address	923 TERRACE LN W UNIT 2, 2, DIAMOND BAR, CA 91765-4569

May 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	May 8, 2018
Property Address	1610 SUMMITRIDGE DR, DIAMOND BAR, CA 91765-4335
Document Number	0000451798
Instrument Date	Apr 25, 2018
Instrument	451798
Transaction Type	Transfer
Record Updated	Nov 21, 2018
Title Company	STEWART TITLE

Transaction

Amount	Amount on Record
Tax	$1,254.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1610 SUMMITRIDGE DR DIAMOND BAR CA 917654335, DIAMOND BAR, CA 91765-4335

Tax Assessment & Valuation

The 2025 property tax bill for 1610 Summitridge Dr was $19,820 with a homeowner's exemption.

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		$1,587,650 (+2%) Land $783,629 Building $804,021
2025	$19,820.00	$1,556,520 Land $768,264 Building $788,256
2023	$15,611.00 (+2.2%)	$1,246,753 Land $576,568 Building $670,185
2022	$15,275.00

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

Flood

FEMA maps place 1610 Summitridge Dr in Zone X, an area of minimal flood risk.

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

Wildfire risk around 1610 Summitridge Dr is low, with a 0.03% annual chance of 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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