Cosmo Ave, El Cajon, CA Property Records

San Diego County property records for 34 addresses on Cosmo Ave, El Cajon, CA · Last verified August 2026

Cosmo Ave Highlights

Properties 34
Median Sale Price $750,000
Deeds and Mortgages on File 66
Median Price per Sqft $603
Owner Occupied 76%
Median Annual Tax Bill $4,899
Median Year Built 1964
Median Ownership Tenure 21 years

Properties on Cosmo Ave

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

898 Cosmo Ave

4 bd · 2 ba · 1,232 sqft · built 1964 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$865,000May 2024 $11,3432025 —Apr 2004 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

900 Cosmo Ave

4 bd · 2 ba · 1,442 sqft · built 1964 · 0.14 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,1232025 —Oct 2020 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

915 Cosmo Ave

3 bd · 2 ba · 1,194 sqft · built 1964 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Jul 2024 $8,8772025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

916 Cosmo Ave

3 bd · 2 ba · 1,194 sqft · built 1964 · 0.133 acres

Last Sale Tax Bill Prior Sale Owner Records
$440,000Aug 2004 $8,1542025 —Aug 2004 1 Name on Record AssessorUpdated Jul 2026

929 Cosmo Ave

4 bd · 2 ba · 1,232 sqft · built 1964 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$820,000Sep 2024 $10,7512025 —Sep 2024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

930 Cosmo Ave

3 bd · 1 ba · 1,040 sqft · built 1964 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,6682025 —Aug 2003 1 Name on Record AssessorUpdated Aug 2026

941 Cosmo Ave

4 bd · 2 ba · 1,232 sqft · built 1964 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$129,000Nov 1988 $3,6072025 Amount on Record Oct 1984 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

942 Cosmo Ave

3 bd · 1 ba · 1,232 sqft · built 1964 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$98,000Jan 1987 $3,4342025 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

953 Cosmo Ave

4 bd · 2 ba · 1,232 sqft · built 1964 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$166,000Jul 1999 $3,7412025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

954 Cosmo Ave

3 bd · 2 ba · 1,716 sqft · built 1964 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Jan 2024 $9,5952025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

966 Cosmo Ave

4 bd · 2 ba · 1,232 sqft · built 1964 · 0.14 acres

Last Sale Tax Bill Prior Sale Owner Records
$138,000Aug 1995 $3,3592025 Amount on Record Apr 1983 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

971 Cosmo Ave

3 bd · 2 ba · 1,376 sqft · built 1964 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$830,000Dec 2024 $4,3992025 Amount on Record Jul 2024 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

972 Cosmo Ave

3 bd · 2 ba · 1,194 sqft · built 1964 · 0.14 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,1782025 Amount on Record Oct 2000 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

987 Cosmo Ave

4 bd · 2 ba · 1,616 sqft · built 1964 · 0.14 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 1974 $1,3452025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

988 Cosmo Ave

3 bd · 2 ba · 1,194 sqft · built 1964 · 0.14 acres

Last Sale Tax Bill Prior Sale Owner Records
$99,500Aug 1985 $3,1122025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

992 Cosmo Ave

3 bd · 2 ba · 1,608 sqft · built 1964 · 0.153 acres

Last Sale Tax Bill Prior Sale Owner Records
$635,000Feb 2021 $8,7282025 Amount on Record Feb 2003 2 Names on Record Assessor + 3 DocumentsUpdated Aug 2026

995 Cosmo Ave

4 bd · 2 ba · 1,376 sqft · built 1964 · 0.153 acres

Last Sale Tax Bill Prior Sale Owner Records
$415,000Jun 2005 $8,0192025 —Jun 2004 2 Names on Record Assessor + 2 DocumentsUpdated Jul 2026

1004 Cosmo Ave

3 bd · 2 ba · 2,217 sqft · built 1961 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$229,000Apr 2000 $4,9532025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

1010 Cosmo Ave

3 bd · 1 ba · 1,064 sqft · built 1961 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$425,000Jul 2007 $7,4892025 Amount on Record Mar 1993 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

1018 Cosmo Ave

3 bd · 2 ba · 1,166 sqft · built 1961 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$398,000May 2016 $6,3202025 Amount on Record Dec 2015 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

1024 Cosmo Ave

3 bd · 1 ba · 1,036 sqft · built 1961 · 0.149 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,2632025 —Dec 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

1030 Cosmo Ave

3 bd · 2 ba · 1,172 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$225,000Apr 2001 $4,8992025 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

1036 Cosmo Ave

3 bd · 2 ba · 1,064 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$630,000Jul 2021 $8,3912025 —Oct 2019 2 Names on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

1048 Cosmo Ave

3 bd · 1 ba · 1,036 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$732,500Mar 2026 $5,9842025 Amount on Record Oct 2002 1 Name on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

1054 Cosmo Ave

3 bd · 2 ba · 1,482 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,2422025 —Nov 2018 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

1060 Cosmo Ave

4 bd · 2 ba · 2,158 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,0462025 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

1078 Cosmo Ave

3 bd · 2 ba · 1,036 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$626,000Apr 2021 $8,5322025 Amount on Record May 2017 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

1079 Cosmo Ave

4 bd · 2 ba · 1,900 sqft · built 1961 · 0.162 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,000,000Nov 2025 $8,6502025 Amount on Record Aug 2017 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

1082 Cosmo Ave

3 bd · 2 ba · 1,510 sqft · built 1961 · 0.137 acres

Last Sale Tax Bill Prior Sale Owner Records
$532,000Dec 2018 $7,5862025 Amount on Record Dec 2011 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

1083 Cosmo Ave

3 bd · 1 ba · 1,102 sqft · built 1961 · 0.142 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,000Nov 2002 $5,7212025 Amount on Record May 1999 1 Name on Record AssessorUpdated Jul 2026

1089 Cosmo Ave

3 bd · 1 ba · 1,363 sqft · built 1961 · 0.19 acres

Last Sale Tax Bill Prior Sale Owner Records
$146,000Dec 1995 $3,4942025 —Mar 2015 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

1090 Cosmo Ave

3 bd · 1 ba · 1,036 sqft · built 1961 · 0.142 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,4152025 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

1095 Cosmo Ave

3 bd · 1 ba · 1,036 sqft · built 1961 · 0.199 acres

Last Sale Tax Bill Prior Sale Owner Records
$88,000Sep 1983 $2,6932025 —May 2019 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

1096 Cosmo Ave

3 bd · 1 ba · 1,064 sqft · built 1961 · 0.172 acres

Last Sale Tax Bill Prior Sale Owner Records
$199,000Jul 2000 $4,3822025 Amount on Record Aug 1984 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

Wildfire Risk on Cosmo Ave

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets