21032 Cornerstone Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 21032 Cornerstone Dr, Walnut, CA 91789

Property Summary

Property Type	Condominium
Details	4 bd · 3 ba · 1,750 sqft · built 2018
Owner	2 Individual Names on File
Last Sale	$712,000 (May 2017)
Tax Bill	$10,184 (2025)
Deeds & Mortgages	Feb 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8720-047-092`

Property Details

APN / Parcel Number

Primary APN	`8720-047-092`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	1,750 sqft Living Area

Exterior

Year Built	Built 2018
Effective Year Built	Effective 2018
Architectural Style	Condo/Apartment
Construction Type	Wood

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Central

Location & Zoning

Street Address	21032 CORNERSTONE DR
City	WALNUT
State	CA
Zip	91789-2571
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	WAC3*
Legal Description	TR=73294 LOT 43 PH 2 CONDO UNIT 51 (AIRSPACE AND 1/9 INT IN COMMON AREA)
Legal Subdivision	GALLERY AT CORNERSTONE
Legal Tract	73294
Legal Block	2
Legal Lot Number	43
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2011
Census Tract	403402

Owner

Source: Los Angeles County records · APN 8720-047-092

Assessment roll updated May 21, 2026 · Last verified June 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 File
Mailing Address	21032 CORNERSTONE DR, WALNUT, CA 91789-2571
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 22, 2017 · Amount on Record
Deed Sale	May 22, 2017 · Amount on Record
Deed Document Number	2017563014
Record Updated	Sep 20, 2026

February 2018: Grant Deed, Subdivision Related Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Feb 21, 2018
Property Address	21032 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number	0000168159
Instrument Date	Feb 16, 2018
Instrument	168159
Transaction Type	Subdivision Related Transfer
Record Updated	Mar 07, 2018
Title Company	FNTG BUILDER SERVICES

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$763.40
Amount Accuracy	Full Value
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	20962 CORNERSTONE DR WALNUT CA 917892567, WALNUT, CA 91789-2567

Mortgage

Document Number	168160
Date	Feb 21, 2018
Instrument	168160

Lender

Name	VICTORIA FIN'L
Type	Funding / Finance Company
Address	SAN GABRIEL, CA 91776

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Feb 20, 2048

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 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	$10,184.00 (+7.74%) Homeowner's exemption	$826,329 (+4.04%) Land $527,133 Building $299,196
2023	$9,452.00 (+2.15%) Homeowner's exemption	$794,244 Land $506,665 Building $287,579
2022	$9,253.00

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 X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within 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 · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile USA Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: California Internet.

Based on FCC filings for 549 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	WALNUT VALLEY WATER DISTRICT serves 100,941 people
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 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.