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20990 Cornerstone Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 20990 Cornerstone Dr, Walnut, CA 91789 · Last verified August 2026

Property Highlights

Property TypeResidential > Condominium / Townhouse > Condominium
Bedrooms4 Beds
Bathrooms3 Baths
Architecture StyleCondo/Apartment
Year BuiltBuilt 2018
Square Footage1,750 sqft Living Area
OccupancyOwner Occupied
Last Sale$693,000 (2017)
Tax Bill$9,752.00 (2025)

Property Details

APN / Parcel Number

Primary APN8720-047-077

Interior

Bedrooms4 Beds
Full Baths3 Baths
Building Area1,750 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 Address20990 CORNERSTONE DR
CityWALNUT
StateCA
Zip91789-2567
Property UsageResidential Property Usage
TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionTR=73294 LOT 42 PH 4 CONDO UNIT 36 (AIRSPACE AND 1/9 INT IN COMMON AREA)
Legal SubdivisionGALLERY AT CORNERSTONE
Legal Tract73294
Legal Block2
Legal Lot Number42
JurisdictionLOS ANGELES CA
Minor Civil DivisionEAST SAN GABRIEL VALLEY
Census Blockgroup2
Census Block2011
Census Tract403402

Owner

Source: Los Angeles County records · APN 8720-047-077

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

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

Owner of RecordIndividual Name on File
Mailing Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Aug 17, 2023Intrafamily Transfer, Transfer
Aug 15, 2023Intrafamily Transfer, Transfer
Aug 10, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
ROCKET MORTGAGE LLC
Aug 10, 2021Intrafamily Transfer, Transfer
PACIFIC COAST TITLE COMPANY
Jul 30, 2020Deed of Trust, Mortgage · Conventional Mortgage
UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleNov 15, 2017 · Amount on Record
Deed SaleNov 15, 2017 · Amount on Record
Deed Doc Number20171311290
Last Transfer DateJul 19, 2021
Transfer Doc0001223413
Record RefreshedSep 20, 2026

August 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateAug 17, 2023
Property Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567
Document Number0000547770
Map ReferenceMB 1390 PG 37-44
Instrument DateJul 21, 2023
Instrument23-0547770
Transaction TypeTransfer
Record UpdatedSep 01, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567

August 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateAug 15, 2023
Property Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567
Document Number0000538329
Map ReferenceMB 1390 PG 37-44
Instrument DateJul 21, 2023
Instrument23-0538329
Transaction TypeTransfer
Record UpdatedAug 30, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTenants in Severalty
Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567

August 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateAug 10, 2021
Property Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567
Document Number0001223414
Map ReferenceMB 1390 PG 37-44
Instrument DateJul 19, 2021
Instrument21-1223414
Transaction TypeTransfer
Record UpdatedAug 19, 2021
Title CompanyPACIFIC COAST TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567

Mortgage

Document Number0001223415
DateAug 10, 2021
Instrument21-1223415
Lender
NameROCKET MORTGAGE LLC
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueSep 01, 2051

August 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateAug 10, 2021
Property Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567
Document Number0001223413
Map ReferenceMB 1390 PG 37-44
Instrument DateJul 19, 2021
Instrument21-1223413
Transaction TypeTransfer
Record UpdatedAug 19, 2021
Title CompanyPACIFIC COAST TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567

July 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionLOS ANGELES CA
Property Address20990 CORNERSTONE DR, WALNUT, CA 91789-2567
Transaction TypeMortgage
Record UpdatedFeb 05, 2021
Title CompanyPACIFIC COAST TITLE COMPANY

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000862877
DateJul 30, 2020
Instrument20-0862877
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
AddressPONTIAC, MI 48341
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueAug 01, 2050

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified August 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$9,752.00 (+7.78%) Homeowner's exemption$788,397 (+4.04%) Land $333,267 Building $455,130
2023$9,048.00 (+2.14%) Homeowner's exemption$757,784 Land $320,327 Building $437,457
2022$8,858.00

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