1138 Chisolm Trail Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 1138 Chisolm Trail Dr, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,135 sqft · built 1983
Lot Size	0.172 acres (7,478 sqft)
Owner	2 Individual Names on File
Last Sale	$818,000 (Mar 2020)
Tax Bill	$11,345 (2025)
Deeds & Mortgages	Sep 2020 Mortgage Mar 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8717-028-003`

Property Details

APN / Parcel Number

Primary APN	`8717-028-003`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	2,135 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1983
Effective Year Built	Effective 1983
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Tile
Lot Area	7,478 sqft (0.172 acres)
Lot Dimensions	105 ft deep x 70 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1138 CHISOLM TRAIL DR
City	DIAMOND BAR
State	CA
Zip	91765-4103
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18OOO*
Legal Description	*TR=37874 LOT 3
Legal Subdivision	37874
Legal Tract	37874
Legal Block	2
Legal Lot Number	3
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2009
Census Tract	403319

Owner

1138 Chisolm Trail Dr is owned and occupied by two individuals who bought it in March 2020.

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

Owner of Record	2 Individual Names on File
Mailing Address	1138 CHISOLM TRAIL DR, DIAMOND BAR, CA 91765-4103
Occupancy	Owner Occupied
Owner Type	Individual

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
Sep 30, 2020	Deed of Trust, Mortgage · Conventional Mortgage UNI FIRST INVESTMENT INC
Mar 17, 2020	Grant Deed, Transfer · Conventional Mortgage UNI FIRST INVESTMENT INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 17, 2020 · Amount on File
Deed Sale	Mar 17, 2020 · Amount on File
Prior Sale	Dec 31, 2002 · Amount on File
Deed Document Number	2020310172
Prior Transfer Date	Oct 18, 2001
Prior Transfer Doc	0002066578
Record Updated	Oct 29, 2026

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	1138 CHISOLM TRAIL DR, DIAMOND BAR, CA 91765-4103
Transaction Type	Mortgage
Record Updated	Jul 20, 2022
Title Company	PACIFIC COAST TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1138 CHISOLM TRAIL DR, DIAMOND BAR, CA 91765-4103

Mortgage

Document Number	0001203389
Date	Sep 30, 2020
Instrument	20-1203389

Lender

Name	UNI FIRST INVESTMENT INC
Type	Non-Lending Institution
Address	ALHAMBRA, CA 91801

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2050

March 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 17, 2020
Property Address	1138 CHISOLM TRAIL DR, DIAMOND BAR, CA 91765-4103
Document Number	0000310172
Map Reference	MB 978 PG 6-8
Instrument Date	Mar 12, 2020
Instrument	20-0310172
Transaction Type	Transfer
Record Updated	Jul 20, 2022
Title Company	LAWYERS TITLE

Transaction

Amount	Amount on Record
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	1138 CHISOIM TRAIL DR, DIAMOND BAR, CA 91765-4103

Mortgage

Document Number	0000310173
Date	Mar 17, 2020
Instrument	20-0310173

Lender

Name	UNI FIRST INVESTMENT INC
Type	Non-Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 1138 Chisolm Trail Dr was $11,345.

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		$912,490 (+2%) Land $546,044 Building $366,446
2025	$11,345.00	$894,599 Land $535,338 Building $359,261
2023	$10,558.00 (+2.12%)	$859,862 Land $514,551 Building $345,311
2022	$10,339.00

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

Flood

FEMA maps place 1138 Chisolm Trail Dr in Zone X, an area of minimal flood risk.

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

Wildfire risk around 1138 Chisolm Trail Dr is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 98% of the US · lower than 98.4% 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 464 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks.

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