1947 N Onyx Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 1947 N Onyx Dr, Walnut, CA 91789

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,443 sqft · built 1988
Lot Size	0.263 acres (11,463 sqft)
Owner	2 Company Names on File
Last Sale	$980,000 (Oct 2013)
Tax Bill	$15,748 (2025)
Flood Zone	Zone D (undetermined)
APN	`8710-027-027`

Property Details

APN / Parcel Number

Primary APN	`8710-027-027`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	2,443 sqft Living Area

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Construction Type	Wood
Lot Area	11,463 sqft (0.263 acres)
Lot Dimensions	147 ft deep x 78 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1947 N ONYX DR
City	WALNUT
State	CA
Zip	91789-5114
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	WASP1*
Legal Description	TR=40533 LOT 71
Legal Subdivision	40533
Legal Tract	40533
Legal Block	1
Legal Lot Number	71
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1000
Census Tract	403409

Owner

Source: Los Angeles County records · APN 8710-027-027

Assessment roll updated May 21, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on File
Mailing Address	1930 S BREA CANYON RD, 130, DIAMOND BAR, CA 91765-4026
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 15, 2013 · Amount on Record
Deed Sale	Oct 15, 2013 · Amount on Record
Deed Document Number	20131473788
Last Transfer Date	Jul 10, 2025
Transfer Doc	0000478255
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Walnut City
Unified School District	Walnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2025	$15,748.00 (+7.97%)	$1,201,333 (+4.04%) Land $685,251 Building $516,082
2023	$14,586.00 (+2.01%)	$1,154,686 Land $658,643 Building $496,043
2022	$14,299.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 30, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone D undetermined · not studied
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Moderate above 44% of the US · lower than 74% of California
Wildfire Likelihood	0.06% annual chance
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 35

May also be available: Verizon.

Based on FCC filings for 118 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	GSWC-SAN DIMAS private · serves 56,564 people
Water Source	Purchased surface water from several systems
Last State Inspection	May 2025
Lead	2 ppb (2024–2026) 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.