Gernside Dr, Diamond Bar, CA Property Records

Los Angeles County property records for 24 addresses on Gernside Dr, Diamond Bar, CA · Last verified August 2026

Gernside Dr Highlights

Properties 24
Median Sale Price $717,500
Deeds and Mortgages on File 30
Median Price per Sqft $340
Owner Occupied 92%
Median Annual Tax Bill $7,366
Median Year Built 1975
Median Ownership Tenure 20 years

Properties on Gernside Dr

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

20403 Gernside Dr

3 bd · 2 ba · 1,767 sqft · 0.218 acres

Last Sale Tax Bill Prior Sale Owner Records
$567,000Mar 2014 $8,9782025 —Mar 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20411 Gernside Dr

4 bd · 2 ba · 1,909 sqft · 0.217 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,1812025 —Jun 2018 2 Names on Record Assessor + 5 DocumentsUpdated Jun 2026

20417 Gernside Dr

4 bd · 3 ba · 2,294 sqft · 0.21 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$650,000Apr 2014 $10,2712025 Amount on Record Apr 2004 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20439 Gernside Dr

4 bd · 3 ba · 2,294 sqft · 0.251 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$302,000Jul 1989 $7,3662025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20445 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.217 acres

Last Sale Tax Bill Prior Sale Owner Records
$968,000Jul 2014 $11,2002025 Amount on Record Feb 2014 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20451 Gernside Dr

4 bd · 3 ba · 2,307 sqft · 0.218 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$239,000Feb 1996 $5,5162025 Amount on Record Oct 1995 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20459 Gernside Dr

3 bd · 2 ba · 1,767 sqft · 0.215 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$486,000May 2011 $8,1292025 —Nov 2010 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20503 Gernside Dr

3 bd · 2 ba · 1,609 sqft · 0.215 acres

Last Sale Tax Bill Prior Sale Owner Records
$346,000Dec 2002 $6,7382025 Amount on Record Oct 1999 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20511 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.212 acres

Last Sale Tax Bill Prior Sale Owner Records
$532,000Feb 2012 $10,4072025 —Feb 2012 1 Name on Record AssessorUpdated Jun 2026

20516 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.223 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$857,500Jun 2019 $12,0202025 Amount on Record Apr 2018 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20519 Gernside Dr

4 bd · 3 ba · 2,307 sqft · 0.207 acres

Last Sale Tax Bill Prior Sale Owner Records
$222,000Feb 1998 $4,9762025 Amount on Record Nov 1997 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20524 Gernside Dr

4 bd · 3 ba · 2,294 sqft · 0.205 acres

Last Sale Tax Bill Prior Sale Owner Records
$314,003Jun 1990 $7,5532025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20527 Gernside Dr

3 bd · 2 ba · 1,767 sqft · 0.205 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$235,000Apr 1991 $5,6322025 —Feb 2022 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20530 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.196 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$720,000Mar 2006 $12,3592025 —Aug 2001 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20535 Gernside Dr

3 bd · 2 ba · 1,609 sqft · 0.209 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2001 $5,7022025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20536 Gernside Dr

3 bd · 2 ba · 1,767 sqft · 0.2 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,3732025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20543 Gernside Dr

3 bd · 2 ba · 1,767 sqft · 0.206 acres

Last Sale Tax Bill Prior Sale Owner Records
$575,000Mar 2013 $9,0522025 Amount on Record Oct 1998 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20551 Gernside Dr

4 bd · 3 ba · 2,294 sqft · 0.212 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$3,5022025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20558 Gernside Dr

4 bd · 2 ba · 2,107 sqft · 0.187 acres

Last Sale Tax Bill Prior Sale Owner Records
$717,500Jul 2019 $9,9782025 Amount on Record Jan 1997 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20559 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.205 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$3,1282025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20565 Gernside Dr

4 bd · 3 ba · 2,307 sqft · 0.211 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$246,000Sep 1994 $5,6932025 —Sep 1994 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20566 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,5582025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20573 Gernside Dr

4 bd · 3 ba · 2,304 sqft · 0.22 acres

Last Sale Tax Bill Prior Sale Owner Records
$870,000Jan 2020 $11,9672025 Amount on Record Oct 2011 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20577 Gernside Dr

4 bd · 3 ba · 2,307 sqft · 0.313 acres

Last Sale Tax Bill Prior Sale Owner Records
$304,000May 2000 $6,4222025 Amount on Record May 1997 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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