1179 Grubstake Dr, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 1179 Grubstake Dr, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,771 sqft · built 1979
Lot Size	0.188 acres (8,189 sqft)
Owner	2 Individual Names on Record
Last Sale	$525,000 (Aug 2011)
Tax Bill	$8,564 (2025)
Deeds & Mortgages	May 2022 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8701-029-012`

Property Details

APN / Parcel Number

Primary APN	`8701-029-012`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,771 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1979
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	8,189 sqft (0.188 acres)
Lot Dimensions	111 ft deep x 75 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1179 GRUBSTAKE DR
City	DIAMOND BAR
State	CA
Zip	91765-2346
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCC3-R1800
Legal Description	*TR=35026 LOT 12
Legal Subdivision	35026
Legal Tract	35026
Legal Block	1
Legal Lot Number	12
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1008
Census Tract	403320

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	1179 GRUBSTAKE DR, DIAMOND BAR, CA 91765-2346
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 23, 2011 · Amount on Record
Deed Sale	Aug 23, 2011 · Amount on Record
Deed Document Number	20111132731
Last Transfer Date	May 20, 2022
Transfer Doc	0000560345
Record Updated	Oct 29, 2026

May 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	May 25, 2022
Property Address	1179 GRUBSTAKE DR, DIAMOND BAR, CA 91765-2346
Document Number	0000560345
Map Reference	MB 919 PG 31-37
Instrument Date	May 20, 2022
Instrument	22-0560345
Transaction Type	Transfer
Record Updated	Jun 3, 2022
Title Company	ACCOMODATION, ACCOMMODATION

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	Joint Tenants
Address	1179 GRUBSTAKE DR, DIAMOND BAR, CA 91765-2346

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		$672,605 (+2%) Land $356,417 Building $316,188
2025	$8,564.00 (+4.98%)	$659,418 (+4.04%) Land $349,429 Building $309,989
2024	$8,158.00 (+2.42%)
2023	$7,965.00 (+2.12%)	$633,813 Land $335,861 Building $297,952
2022	$7,800.00

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 80% of the US · lower than 88% of California
Wildfire Likelihood	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 344 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000

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

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