20439 Blue Mountain Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 20439 Blue Mountain Dr, Walnut, CA 91789

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,971 sqft · built 1965
Lot Size	0.271 acres (11,800 sqft)
Owner	Individual Name on Record
Last Sale	$1,050,000 (Aug 2023)
Tax Bill	$13,549 (2025)
Deeds & Mortgages	Aug 2023 Sale & Mortgage Nov 2021 Transfer + 4 more
Flood Zone	Zone D (undetermined)
APN	`8712-004-028`

Property Details

APN / Parcel Number

Primary APN	`8712-004-028`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,971 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1965
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	11,800 sqft (0.271 acres)
Lot Dimensions	154 ft deep x 81 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	20439 BLUE MOUNTAIN DR
City	WALNUT
State	CA
Zip	91789-1001
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	WAR110000*
Legal Description	TRACT NO 27484 LOT 9
Legal Subdivision	27484
Legal Tract	27484
Legal Block	1
Legal Lot Number	9
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1005
Census Tract	403409

Owner

Source: Los Angeles County records, as of May 21, 2026

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

Owner of Record	Individual Name on Record
Mailing Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Unmarried Woman

Deeds, Mortgages & Sale History

Date	Document
Aug 18, 2023	Grant Deed, Transfer · Conventional Mortgage PREFERRED BANK
Nov 22, 2021	Intrafamily Transfer, Transfer
Nov 13, 2020	Quit Claim Deed, Transfer TICOR TITLE RIVERSIDE
Nov 13, 2020	Quit Claim Deed, Transfer TICOR TITLE RIVERSIDE
Nov 13, 2020	Grant Deed, Transfer TICOR TITLE
Nov 13, 2020	Affidavit of Death, Transfer TICOR TITLE RIVERSIDE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 18, 2023 · Amount on Record
Deed Sale	Aug 18, 2023 · Amount on Record
Prior Sale	Nov 13, 2020 · Amount on Record
Deed Document Number	2023551217
Prior Transfer Date	Jun 26, 2021
Prior Transfer Doc	0001732391
Record Updated	Sep 20, 2026

August 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 18, 2023
Property Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Document Number	0000551217
Map Reference	MB 718 PG 74&75
Instrument Date	Aug 9, 2023
Instrument	23-0551217
Transaction Type	Transfer
Record Updated	Aug 28, 2023
Title Company	STEWART TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001

Mortgage

Document Number	0000551218
Date	Aug 18, 2023
Instrument	23-0551218

Lender

Name	PREFERRED BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2053

Interest

Rate Type	Adjustable Rate
Rate	6.75%
Type Change Date	Sep 1, 2026
Change Frequency	6 Months
Min Rate At Change	4.75%
Max Rate At Change	8.75%
Margin	3
Max Rate	11.7%

November 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 22, 2021
Property Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Document Number	0001732391
Map Reference	MB 718 PG 74&75
Instrument Date	Jun 26, 2021
Instrument	21-1732391
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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	Revocable Living Trust
Address	14017 BIRDSONG LN, CHINO HILLS, CA 91709-4820

November 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 13, 2020
Property Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Document Number	0001446554
Instrument Date	Nov 9, 2020
Instrument	1446554
Transaction Type	Transfer
Record Updated	Nov 19, 2020
Title Company	TICOR TITLE RIVERSIDE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	20439 BLUE MOUNTAIN DR WALNUT CA 917891001, WALNUT, CA 91789-1001

November 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 13, 2020
Property Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Document Number	0001446553
Instrument Date	Nov 9, 2020
Instrument	1446553
Transaction Type	Transfer
Record Updated	Nov 19, 2020
Title Company	TICOR TITLE RIVERSIDE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	20439 BLUE MOUNTAIN DR WALNUT CA 917891001, WALNUT, CA 91789-1001

November 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 13, 2020
Property Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Document Number	0001446552
Map Reference	MB 718 PG 74&75
Instrument Date	Nov 2, 2020
Instrument	20-1446552
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	TICOR TITLE

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001

November 2020: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 13, 2020
Property Address	20439 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001
Document Number	0001446551
Instrument Date	Nov 2, 2020
Instrument	1446551
Transaction Type	Transfer
Record Updated	Nov 19, 2020
Title Company	TICOR TITLE RIVERSIDE

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	4401 GOLF DR LIVERMORE CA 945516736, LIVERMORE, CA 94551-6736

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of May 21, 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

Year	Tax Bill	Assessed Value
2025	$13,549.00 (+44.45%)	$1,071,000 (+41.99%) Land $788,562 Building $282,438
2023	$9,380.00 (+2.08%)	$754,290 Land $603,432 Building $150,858
2022	$9,189.00

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 D undetermined · not studied
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	Moderate above 53% of the US · lower than 68% of California
Wildfire Likelihood	0.07% annual chance
Exposure	Direct burnable vegetation

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 96 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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