Blackthorne Ave, El Cajon, CA Property Records

San Diego County property records for 46 addresses on Blackthorne Ave, El Cajon, CA · Last verified August 2026

Blackthorne Ave Highlights

Properties 46
Median Sale Price $652,500
Deeds and Mortgages on File 81
Median Price per Sqft $347
Owner Occupied 83%
Median Annual Tax Bill $6,546
Median Year Built 1955
Median Ownership Tenure 19 years

Properties on Blackthorne Ave

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

441 Blackthorne Ave

3 bd · 3 ba · 2,224 sqft · built 1956 · 0.183 acres

Last Sale Tax Bill Prior Sale Owner Records
$350,000Nov 2009 $6,6802025 Amount on Record Jul 2009 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

447 Blackthorne Ave

4 bd · 3.5 ba · 2,551 sqft · built 1985 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$177,000Aug 1994 $7,9002025 Amount on Record Feb 1989 2 Owners on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

448 Blackthorne Ave

3 bd · 3 ba · 2,498 sqft · built 1960 · 0.237 acres

Last Sale Tax Bill Prior Sale Owner Records
$252,000Aug 2011 $4,4762025 Amount on Record Nov 2008 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

461 Blackthorne Ave

4 bd · 3 ba · 2,265 sqft · built 1941 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$145,000Mar 1996 $6,7002025 Amount on Record Jan 1996 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

462 Blackthorne Ave

4 bd · 2 ba · 1,876 sqft · built 1950 · 0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
$596,000Jul 2006 $10,3192025 Amount on Record Feb 2006 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

473 Blackthorne Ave

3 bd · 2 ba · 1,324 sqft · built 1950 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Oct 2009 $7,0112025 —Oct 2009 2 Owners on Record AssessorUpdated Aug 2026

474 Blackthorne Ave

3 bd · 2 ba · 2,386 sqft · built 1970 · 0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Oct 2007 $13,5192025 Amount on Record Jun 1997 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

485 Blackthorne Ave

3 bd · 2 ba · 1,461 sqft · built 1959 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$394,000Mar 2021 $4,4952025 —Jul 2012 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

486 Blackthorne Ave

2 bd · 1 ba · 727 sqft · built 1942 · 0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,8092025 —Feb 2003 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

560 Blackthorne Ave

3 bd · 2 ba · 1,831 sqft · built 1977 · 0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
$197,500Nov 1999 $6,5462025 Amount on Record Oct 1996 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

561 Blackthorne Ave

4 bd · 2 ba · 1,439 sqft · built 1952 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$334,545May 2000 $7,2882025 Amount on Record May 1989 Owner on Record Owner Occupied AssessorUpdated Jul 2026

590 Blackthorne Ave

2 bd · 2 ba · 1,357 sqft · built 1950 · 0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 1994 $2,9492025 —Mar 1994 Owner on Record Owner Occupied AssessorUpdated Aug 2026

593 Blackthorne Ave

3 bd · 2 ba · 1,590 sqft · built 1951 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,4822025 —Jan 2007 Owner on Record Owner Occupied AssessorUpdated Aug 2026

626 Blackthorne Ave

4 bd · 2.5 ba · 2,009 sqft · built 1960 · 0.328 acres

Last Sale Tax Bill Prior Sale Owner Records
$233,000May 1993 $6,0242025 Amount on Record May 1984 Owner on Record Owner Occupied AssessorUpdated Jul 2026

629 Blackthorne Ave

3 bd · 1.5 ba · 1,480 sqft · built 1951 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,9502025 —Sep 2006 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

634 Blackthorne Ave

5 bd · 4 ba · 1,915 sqft · built 1960 · 0.328 acres

Last Sale Tax Bill Prior Sale Owner Records
$800,000Aug 2020 $13,9982025 Amount on Record Jan 1984 Owner on Record Assessor + 5 DocumentsUpdated Jul 2026

637 Blackthorne Ave

4 bd · 2.5 ba · 2,946 sqft · built 1983 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$450,000Mar 2011 $8,3662025 Amount on Record Jul 2001 Owner on Record AssessorUpdated Jul 2026

642 Blackthorne Ave

4 bd · 3.5 ba · 3,142 sqft · built 1970 · 0.328 acres

Last Sale Tax Bill Prior Sale Owner Records
$694,500Oct 2014 $8,6032025 Amount on Record Oct 2008 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

645 Blackthorne Ave

3 bd · 2 ba · 1,656 sqft · built 1952 · 0.303 acres

Last Sale Tax Bill Prior Sale Owner Records
$235,000Dec 1999 $4,7052025 Amount on Record — 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

650 Blackthorne Ave

2 bd · 1 ba · 1,594 sqft · built 1953 · 0.319 acres

Last Sale Tax Bill Prior Sale Owner Records
$224,000Sep 1994 $5,3712025 Amount on Record Oct 1986 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

657 Blackthorne Ave

4 bd · 3 ba · 1,874 sqft · built 1952 · 0.268 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,3532025 —Sep 2018 2 Owners on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

664 Blackthorne Ave

3 bd · 2 ba · 1,876 sqft · built 1953 · 0.266 acres

Last Sale Tax Bill Prior Sale Owner Records
$652,500Nov 2019 $10,3952025 Amount on Record Jun 2008 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

699 Blackthorne Ave

4 bd · 2 ba · 1,923 sqft · built 1956 · 0.236 acres

Last Sale Tax Bill Prior Sale Owner Records
$175,000May 1996 $4,3202025 Amount on Record Jan 1996 Owner on Record Owner Occupied AssessorUpdated Jul 2026

720 Blackthorne Ave

3 bd · 2 ba · 1,744 sqft · built 1960 · 0.286 acres

Last Sale Tax Bill Prior Sale Owner Records
$415,000Aug 2010 $7,3052025 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

727 Blackthorne Ave

3 bd · 2 ba · 1,108 sqft · built 1958 · 0.3 acres

Last Sale Tax Bill Prior Sale Owner Records
$256,000Apr 2002 $5,2582025 —Apr 2002 Owner on Record Owner Occupied AssessorUpdated Jul 2026

735 Blackthorne Ave

4 bd · 2 ba · 2,196 sqft · built 1966 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,9792025 —Aug 2017 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

738 Blackthorne Ave

3 bd · 2 ba · 1,749 sqft · built 1975 · 0.231 acres

Last Sale Tax Bill Prior Sale Owner Records
$480,000Apr 2011 $7,9632025 Amount on Record Feb 2010 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

747 Blackthorne Ave

2 bd · 2 ba · 1,781 sqft · built 1952 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$205,000Jun 1995 $5,2482025 Amount on Record Jul 1990 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

754 Blackthorne Ave

2 bd · 2 ba · 1,664 sqft · built 1954 · 0.231 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,0642025 —Feb 2021 Owner on Record Assessor + 3 DocumentsUpdated Jul 2026

760 Blackthorne Ave

3 bd · 2 ba · 1,407 sqft · built 1953 · 0.231 acres

Last Sale Tax Bill Prior Sale Owner Records
$353,000Jul 2012 $5,8712025 —Jun 2003 Owner on Record AssessorUpdated Jul 2026

761 Blackthorne Ave

2 bd · 2 ba · 1,440 sqft · built 1952 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2023 $10,2672025 —Mar 2003 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

769 Blackthorne Ave

4 bd · 2 ba · 1,804 sqft · built 1952 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$640,000Jul 2018 $9,9912025 Amount on Record Oct 2003 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Aug 2026

771 Blackthorne Ave

4 bd · 3.5 ba · 1,659 sqft · built 1952 · 0.227 acres

Last Sale Tax Bill Prior Sale Owner Records
$480,000Jul 2014 $8,6642025 Amount on Record Dec 2010 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

772 Blackthorne Ave

2 bd · 1.5 ba · 1,529 sqft · built 1952 · 0.273 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,4062025 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

778 Blackthorne Ave

5 bd · 4.5 ba · 2,978 sqft · built 1974 · 0.27 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,045,000Apr 2021 $14,7542025 Amount on Record Aug 2018 2 Owners on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

780 Blackthorne Ave

4 bd · 3 ba · 2,526 sqft · built 1972 · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
$720,000Oct 2017 $11,0962025 Amount on Record May 1997 Owner on Record Assessor + 2 DocumentsUpdated Jul 2026

781 Blackthorne Ave

3 bd · 2 ba · 1,664 sqft · built 1959 · 0.241 acres

Last Sale Tax Bill Prior Sale Owner Records
$518,000Nov 2014 $7,9682025 Amount on Record Sep 2014 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

782 Blackthorne Ave, #84

4 bd · 3.5 ba · 2,757 sqft · built 1955 · 0.317 acres

Last Sale Tax Bill Prior Sale Owner Records
$240,000Dec 1990 $7,7032025 —Aug 2021 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

786 Blackthorne Ave

4 bd · 2 ba · 1,829 sqft · built 1955 · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$130,500Nov 1983 $4,3282025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

788 Blackthorne Ave

3 bd · 2 ba · 1,876 sqft · built 1954 · 0.291 acres

Last Sale Tax Bill Prior Sale Owner Records
$515,000Jul 2015 $7,7962025 —Mar 2018 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

790 Blackthorne Ave

4 bd · 2 ba · 1,922 sqft · built 1952 · 0.286 acres

Last Sale Tax Bill Prior Sale Owner Records
$76,000Oct 1993 $4,1542025 —Oct 1993 Owner on Record AssessorUpdated Aug 2026

792 Blackthorne Ave

4 bd · 2 ba · 2,520 sqft · built 1960 · 0.312 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Aug 2001 $2,6212025 —Feb 2021 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

794 Blackthorne Ave

3 bd · 2 ba · 1,353 sqft · built 1954 · 0.266 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,4562025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

796 Blackthorne Ave

4 bd · 2 ba · 2,056 sqft · built 1970 · 0.254 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Jul 1994 $5,8662025 Amount on Record Jun 1990 Owner on Record AssessorUpdated Jul 2026

798 Blackthorne Ave

3 bd · 2 ba · 1,317 sqft · built 1955 · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
$126,000Apr 1998 $8,5122025 —Aug 1997 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

799 Blackthorne Ave

4 bd · 3 ba · 1,932 sqft · built 1952 · 0.243 acres

Last Sale Tax Bill Prior Sale Owner Records
$217,000Aug 1998 $4,6792025 —Aug 1998 Owner on Record Owner Occupied AssessorUpdated Jul 2026

Property Records in Nearby Streets