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21012 Cornerstone Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 21012 Cornerstone Dr, Walnut, CA 91789 · Last verified June 2026

Property Highlights

Property TypeResidential > Condominium / Townhouse > Condominium
Bedrooms4 Beds
Bathrooms3 Baths
Architecture StyleCondo/Apartment
Year BuiltBuilt 2018
Square Footage1,820 sqft Living Area
OccupancyOwner Occupied
Last Sale$777,000 (2021)
Tax Bill$10,367.00 (2025)

Property Details

APN / Parcel Number

Primary APN8720-047-089

Interior

Bedrooms4 Beds
Full Baths3 Baths
Building Area1,820 sqft Living Area

Exterior

Year BuiltBuilt 2018
Effective Year BuiltEffective 2018
Architectural StyleCondo/Apartment Style
Construction TypeWood Construction

Utilities and HVAC

Cooling SystemHVAC Cooling
Heating SystemCentral Heating

Location & Zoning

Street Address21012 CORNERSTONE DR
CityWALNUT
StateCA
Zip91789-2571
Property UsageResidential Property Usage
TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionTR=73294 LOT 43 PH 2 CONDO UNIT 48 (AIRSPACE AND 1/9 INT IN COMMON AREA)
Legal SubdivisionGALLERY AT CORNERSTONE
Legal Tract73294
Legal Block2
Legal Lot Number43
JurisdictionLOS ANGELES CA
Minor Civil DivisionEAST SAN GABRIEL VALLEY
Census Blockgroup2
Census Block2011
Census Tract403402

Owner

Source: Los Angeles County records · APN 8720-047-089

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 Record2 Individual Names on File
Mailing Address21012 CORNERSTONE DR, WALNUT, CA 91789-2571
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJun 14, 2021 · Amount on Record
Deed SaleJun 14, 2021 · Amount on Record
Prior SaleAug 21, 2017 · Amount on Record
Deed Doc Number2021933447
Record RefreshedSep 20, 2026

June 2021: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionLOS ANGELES CA
Recording DateJun 14, 2021
Property Address21012 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number0000933447
Map ReferenceMB 1390 PG 37-44
Instrument DateMay 14, 2021
Instrument21-0933447
Transaction TypeTransfer
Record UpdatedJun 22, 2021
Title CompanySTEWART TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded Values by County
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property (Marital Community) with Rights of Survivorship
Address21012 CORNERSTONE DR, WALNUT, CA 91789-2571

Mortgage

Document Number0000933448
DateJun 14, 2021
Instrument21-0933448
Lender
NameACG FUNDING INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term301 Months
DueJul 01, 2046

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyLos Angeles County
MunicipalityWalnut City
Unified School DistrictWalnut 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.

YearTax BillAssessed Value
2025$10,367.00 (+7.77%) Homeowner's exemption$841,047 (+4.04%) Land $507,768 Building $333,279
2023$9,620.00 (+2.14%) Homeowner's exemption$808,390 Land $488,051 Building $320,339
2022$9,418.00

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