441 Blackthorne Ave, El Cajon, CA 92020 Property Records

San Diego County property record for 441 Blackthorne Ave, El Cajon, CA 92020

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,224 sqft · built 1956
Lot Size	0.184 acres (8,000 sqft)
Owner	2 Company Names on File
Last Sale	$350,000 (Nov 2009)
Tax Bill	$6,680 (2025)
Deeds & Mortgages	Jan 2026 Transfer Jan 2026 Transfer + 3 more
Flood Zone	Zone X (minimal risk)
APN	`487-442-01-00`

Property Details

APN / Parcel Number

Primary APN	`487-442-01-00`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	2,224 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1956
Architectural Style	Contemporary
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Tar & Gravel
Lot Area	8,000 sqft (0.184 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	441 BLACKTHORNE AVE
City	EL CAJON
State	CA
Zip	92020-5604
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RS-6
Legal Description	BLK 4 LOT 1 /EXC ST OP/ WLY 80 FT TR 002041
Legal Subdivision	FLETCHER HILLS
Legal Tract	002041
Legal Block	4
Legal Lot Number	1
Jurisdiction	SAN DIEGO CA
Township / Civil Division	SAN DIEGO
Census Block Group	2
Census Block	2003
Census Tract	16000

Owner

441 Blackthorne Ave is owned by a company that bought it in November 2009.

Source: San Diego County records, as of July 28, 2026

Owner of Record	2 Company Names on File
Mailing Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604
Owner Type	Company
Vesting	Life Tenant

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jan 9, 2026	Intrafamily Transfer, Transfer
Jan 9, 2026	Intrafamily Transfer, Transfer
Aug 6, 2021	Deed of Trust, Mortgage · Line of Credit US BANK NA
Nov 23, 2020	Deed of Trust, Mortgage · Conventional Mortgage ISERVE RESIDENTIAL LENDING LLC
Oct 25, 2019	Deed of Trust, Mortgage · Conventional Mortgage ISERVE RESID'L LNDG

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 4, 2009 · Amount on File
Deed Sale	Nov 4, 2009 · Amount on File
Prior Sale	Jul 6, 2009 · Amount on File
Deed Document Number	2009614373
Prior Transfer Date	Sep 13, 2006
Prior Transfer Doc	0000668378
Record Updated	Oct 29, 2026

January 2026: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN DIEGO CA
Recording Date	Jan 9, 2026
Property Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604
Document Number	0000006626
Map Reference	MAP 2041
Instrument Date	Jan 8, 2026
Instrument	2026-0006626
Transaction Type	Transfer
Record Updated	Jan 19, 2026

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	Living Trust
Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604

January 2026: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN DIEGO CA
Recording Date	Jan 9, 2026
Property Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604
Document Number	0000006307
Map Reference	MAP 2041
Instrument Date	Jan 8, 2026
Instrument	2026-0006307
Transaction Type	Transfer
Record Updated	Jan 19, 2026

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	Community Property with Right of Survivorship
Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604
Transaction Type	Mortgage
Record Updated	Aug 18, 2021
Title Company	RADIAN SETTLEMENT SERVICES INC, RADIAN SETTLEMENT SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000562597
Date	Aug 6, 2021
Instrument	2021-0562597

Lender

Name	US BANK NA
Type	Bank
Address	CINCINNATI, OH 45202

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	359 Months
Due	Jul 19, 2051

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	CORINTHIAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604

Mortgage

Document Number	0000743604
Date	Nov 23, 2020
Instrument	2020-0743604

Lender

Name	ISERVE RESIDENTIAL LENDING LLC
Type	Mortgage Company
Address	SAN DIEGO, CA 92127

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2050

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	441 BLACKTHORNE AVE, EL CAJON, CA 92020-5604
Document Number	0000494385
Instrument Date	Oct 25, 2019
Transaction Type	Mortgage
Record Updated	Nov 6, 2019
Title Company	CORINTHIAN TITLE COMPANY, CORINTHIAN TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	441 BLACKTHORNE AVE EL CAJON CA 920205604, EL CAJON, CA 92020-5604

Mortgage

Document Number	0000494385
Date	Oct 30, 2019
Instrument	494385

Lender

Name	ISERVE RESID'L LNDG
Address	SAN DIEGO, CA 92127

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Oct 29, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 441 Blackthorne Ave was $6,680.

Source: San Diego County assessment roll, as of July 28, 2026

Property Jurisdictions

Type	Name
State	California
County	San Diego County
Municipality	El Cajon City
Secondary School District	Grossmont Union High School District (09 - 12)
Elementary School District	La Mesa-Spring Valley School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$460,802 (+2%) Land $131,654 Building $329,148
2025	$6,680.00 Homeowner's exemption	$451,768 Land $129,073 Building $322,695
2023	$6,172.00 (-0.92%) Homeowner's exemption	$434,227 Land $124,062 Building $310,165
2022	$6,229.00

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

Flood

FEMA maps place 441 Blackthorne Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 3, 2026

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

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

Wildfire

The area around 441 Blackthorne Ave has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

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	HELIX WATER DISTRICT serves 277,918 people · EPA ID CA3710010
Water Source	Surface water
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 373 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Cox Communications Cable	2,000 / 100
Starlink Satellite	280 / 30

May also be available: T-Mobile, Verizon.

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