780 Blackthorne Ave, El Cajon, CA 92020 Property Records

San Diego County property record for 780 Blackthorne Ave, El Cajon, CA 92020

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,526 sqft · built 1972
Lot Size	0.234 acres (10,200 sqft)
Owner	Company Name on Record
Last Sale	$720,000 (Oct 2017)
Tax Bill	$11,096 (2025)
Deeds & Mortgages	Oct 2017 Sale & Mortgage Nov 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`487-361-13-00`

Property Details

APN / Parcel Number

Primary APN	`487-361-13-00`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	2,526 sqft Living Area

Exterior

Year Built	Built 1972
Effective Year Built	Effective 1972
Lot Area	10,200 sqft (0.234 acres)
Garage Type	Carport
Carport	Carport
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	780 BLACKTHORNE AVE
City	EL CAJON
State	CA
Zip	92020-5611
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RS-6
Legal Description	LOT 61 TR 002848
Legal Subdivision	GROSSMONT TERRACE
Legal Tract	002848
Legal Block	2
Legal Lot Number	61
Jurisdiction	SAN DIEGO CA
Township / Civil Division	SAN DIEGO
Census Block Group	2
Census Block	2009
Census Tract	16000

Owner

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

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

Owner of Record	Company Name on Record
Mailing Address	3743 PAUL JONES AVE, SAN DIEGO, CA 92117-5634
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Oct 16, 2017	Grant Deed, Transfer · Conventional Mortgage SYNERGY ONE LNDG
Nov 7, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 16, 2017 · Amount on Record
Deed Sale	Oct 16, 2017 · Amount on Record
Prior Sale	May 6, 1997 · Amount on Record
Deed Document Number	2017478726
Prior Transfer Date	Sep 22, 2017
Prior Transfer Doc	0000519812
Record Updated	Oct 29, 2026

October 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN DIEGO CA
Recording Date	Oct 16, 2017
Property Address	780 BLACKTHORNE AVE, EL CAJON, CA 92020-5611
Document Number	0000478726
Instrument Date	Sep 22, 2017
Instrument	478726
Transaction Type	Transfer
Record Updated	Oct 24, 2017
Title Company	LAWYERS TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$792.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	3741 PAUL JONES AVE SAN DIEGO CA 921175634, SAN DIEGO, CA 92117-5634

Mortgage

Document Number	478727
Date	Oct 16, 2017
Instrument	478727

Lender

Name	SYNERGY ONE LNDG
Address	SAN DIEGO, CA 92108

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Oct 15, 2047

November 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN DIEGO CA
Recording Date	Nov 7, 2017
Property Address	780 BLACKTHORNE AVE, EL CAJON, CA 92020-5611
Document Number	0000519812
Instrument Date	Sep 22, 2017
Instrument	519812
Transaction Type	Transfer
Record Updated	Nov 13, 2017

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	3741 PAUL JONES AVE SAN DIEGO CA 921175634, SAN DIEGO, CA 92117-5634

Tax Assessment & Valuation

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		$835,615 (+2%) Land $487,442 Building $348,173
2025	$11,096.00 (+9.58%)	$819,232 (+4.04%) Land $477,885 Building $341,347
2023	$10,126.00 (+0.05%)	$787,422 Land $459,329 Building $328,093
2022	$10,121.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 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

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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