20310 Flintgate Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 20310 Flintgate Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	5 bd · 2 ba · 1,964 sqft · built 1970
Lot Size	0.202 acres (8,787 sqft)
Owner	Individual Name on Record
Tax Bill	$3,537 (2025)
Deeds & Mortgages	Nov 2023 Transfer Nov 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8762-030-024`

Property Details

APN / Parcel Number

Primary APN	`8762-030-024`

Interior

Bedrooms	5 Beds
Full Baths	2 Baths
Building Area	1,964 sqft Living Area

Exterior

Year Built	Built 1970
Effective Year Built	Effective 1971
Construction Type	Wood
Lot Area	8,787 sqft (0.202 acres)

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	20310 FLINTGATE DR
City	WALNUT
State	CA
Zip	91789-3730
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18500*
Legal Description	TRACT NO 28258 LOT 68
Legal Subdivision	28258
Legal Tract	28258
Legal Block	1
Legal Lot Number	68
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1022
Census Tract	403326

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	Individual Name on Record
Mailing Address	20310 FLINTGATE DR, WALNUT, CA 91789-3730
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Nov 7, 2023	Intrafamily Transfer, Transfer
Nov 7, 2023	Affidavit of Death of Joint Tenant, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Oct 31, 2023
Transfer Doc	0000762393
Record Updated	Oct 29, 2026

November 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 7, 2023
Property Address	20310 FLINTGATE DR, DIAMOND BAR, CA 91789-3730
Document Number	0000762395
Map Reference	MB 774 PG 22
Instrument Date	Oct 30, 2023
Instrument	23-0762395
Transaction Type	Transfer
Record Updated	Nov 16, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	20310 FLINTGATE DR, DIAMOND BAR, CA 91789-3730

November 2023: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 7, 2023
Property Address	20310 FLINTGATE DR, DIAMOND BAR, CA 91789-3730
Document Number	0000762393
Map Reference	MB 774 PG 22
Instrument Date	Oct 30, 2023
Instrument	23-0762393
Transaction Type	Transfer
Record Updated	Nov 16, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20310 FLINTGATE DR, DIAMOND BAR, CA 91789-3730

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		$238,333 (+2%) Land $69,291 Building $169,042
2025	$3,537.00 (+10.22%) Homeowner's exemption	$233,661 (+4.04%) Land $67,933 Building $165,728
2023	$3,209.00 (+2.2%) Homeowner's exemption	$224,590 Land $65,296 Building $159,294
2022	$3,140.00

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

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

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

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 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 458 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, GeoLinks, Verizon.

Nearby Properties on Flintgate Dr

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures