Portside Dr, Walnut, CA Property Records

Los Angeles County property records for 58 addresses on Portside Dr, Walnut, CA · Last verified August 2026

Portside Dr Highlights

Properties 58
Median Sale Price $1,100,000
Deeds and Mortgages on File 88
Median Price per Sqft $569
Owner Occupied 91%
Median Annual Tax Bill $8,929
Median Year Built 1985
Median Ownership Tenure 17 years

Properties on Portside Dr

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

20100 Portside Dr

5 bd · 3 ba · 3,002 sqft · 0.603 acres

Last Sale Tax Bill Prior Sale Owner Records
$938,000Apr 2013 $14,8672025 —Apr 2013 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

20107 Portside Dr

4 bd · 3 ba · 2,706 sqft · 0.861 acres

Last Sale Tax Bill Prior Sale Owner Records
$495,000Dec 1989 $12,5502025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

20108 Portside Dr

3 bd · 3 ba · 2,771 sqft · 0.384 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Mar 2012 $11,4802025 —Mar 2012 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20118 Portside Dr

4 bd · 4 ba · 2,988 sqft · 0.348 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Sep 2010 $11,7722025 —Sep 2010 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

20121 Portside Dr

5 bd · 3 ba · 2,929 sqft · 0.892 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$515,000Mar 1990 $13,1482025 —Dec 2024 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

20128 Portside Dr

4 bd · 3 ba · 2,796 sqft · 0.273 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$930,000Feb 2018 $13,6692025 —Feb 2018 1 Name on Record Owner Occupied Assessor + 6 DocumentsUpdated Jun 2026

20136 Portside Dr

4 bd · 3 ba · 2,497 sqft · 0.296 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$740,000Aug 2010 $12,3122025 Amount on Record Jun 2006 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20144 Portside Dr

3 bd · 2 ba · 2,431 sqft · 0.274 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$740,000Feb 2005 $13,3162025 Amount on Record Dec 2004 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

20152 Portside Dr

4 bd · 3 ba · 2,648 sqft · 0.225 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$815,000Jul 2005 $14,2562025 —Jul 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

20160 Portside Dr

5 bd · 3 ba · 3,002 sqft · 0.255 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$7,7722025 —Nov 2009 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20168 Portside Dr

4 bd · 3 ba · 2,789 sqft · 0.305 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,0732025 —Sep 2017 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20176 Portside Dr

4 bd · 3 ba · 2,500 sqft · 0.289 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,8982025 —Nov 2011 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20205 Portside Dr

5 bd · 3 ba · 3,002 sqft · 0.745 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$391,000Dec 1999 $8,5412025 Amount on Record Oct 1995 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20215 Portside Dr

4 bd · 3 ba · 2,796 sqft · 0.275 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$370,000Aug 1999 $7,9082025 —Dec 2012 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20223 Portside Dr

5 bd · 3 ba · 3,002 sqft · 0.268 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$8,1602025 —Mar 2023 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jun 2026

20231 Portside Dr

4 bd · 3 ba · 2,648 sqft · 0.271 acres

Last Sale Tax Bill Prior Sale Owner Records
$7,0552025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20237 Portside Dr

5 bd · 3 ba · 3,002 sqft · 0.255 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$625,000Jul 2012 $10,3182025 Amount on Record Mar 2005 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20245 Portside Dr

4 bd · 3 ba · 2,796 sqft · 0.245 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$633,000Oct 2003 $11,9232025 Amount on Record Sep 2002 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20253 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.239 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$520,000Jun 2006 $6,4062025 Amount on Record Apr 2006 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20259 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.235 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2003 $7,0332025 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

20264 Portside Dr

4 bd · 3 ba · 2,796 sqft · 0.505 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$7,4022025 —Oct 2024 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20265 Portside Dr

4 bd · 3 ba · 2,282 sqft · 0.229 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$585,000Jan 2013 $9,5452025 —May 2003 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20273 Portside Dr

4 bd · 3 ba · 2,072 sqft · 0.222 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$370,000May 2001 $7,5702025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20278 Portside Dr

4 bd · 3 ba · 2,648 sqft · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
$233,000Mar 1988 $6,4772025 —Nov 2006 2 Names on Record AssessorUpdated Jun 2026

20279 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.216 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000Nov 2017 $10,3772025 Amount on Record Jul 2015 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

20285 Portside Dr

4 bd · 3 ba · 2,497 sqft · 0.243 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$275,000Jan 1995 $6,6232025 Amount on Record Nov 1994 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20288 Portside Dr

5 bd · 3 ba · 3,336 sqft · 0.271 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$7,8632025 —Mar 2002 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20291 Portside Dr

4 bd · 3 ba · 2,648 sqft · 0.216 acres

Last Sale Tax Bill Prior Sale Owner Records
$278,000May 1988 $7,3912025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20301 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.283 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$940,000Oct 2021 $8,5702025 —Oct 2021 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

20305 Portside Dr

4 bd · 3 ba · 2,282 sqft · 0.243 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$575,000Mar 2012 $9,5742025 Amount on Record Dec 2004 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20309 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.249 acres

Last Sale Tax Bill Prior Sale Owner Records
$294,000Aug 1998 $6,4492025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20315 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.263 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Aug 2014 $8,0492025 Amount on Record Sep 1998 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

20319 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.288 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$655,000Sep 2014 $10,2912025 Amount on Record Dec 1994 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20323 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.284 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,3442025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

20327 Portside Dr

4 bd · 3 ba · 2,072 sqft · 0.292 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000Jun 1999 $6,5702025 —Sep 2014 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20331 Portside Dr

4 bd · 3 ba · 2,282 sqft · 0.294 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$967,500Feb 2021 $13,5002025 —Sep 2020 2 Names on Record Assessor + 6 DocumentsUpdated Jun 2026

20335 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.294 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,036,500Nov 2023 $13,5232025 Amount on Record Jun 2015 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20339 Portside Dr

5 bd · 5 ba · 4,009 sqft · 0.297 acres

Last Sale Tax Bill Prior Sale Owner Records
$146,001Apr 1986 $9,8102025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20343 Portside Dr

6 bd · 5 ba · 3,182 sqft · 0.308 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$659,000Jun 2009 $10,9632025 Amount on Record Dec 2002 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20347 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.29 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$675,000Sep 2019 $9,6292025 Amount on Record Oct 2009 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20351 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.291 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$389,000Aug 2001 $7,7832025 Amount on Record Jun 1998 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20354 Portside Dr

4 bd · 4 ba · 2,951 sqft · 0.457 acres

Last Sale Tax Bill Prior Sale Owner Records
$318,500Feb 2001 $8,6002025 Amount on Record Jun 1996 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20355 Portside Dr

4 bd · 3 ba · 2,282 sqft · 0.306 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$679,000Mar 2005 $12,2852025 Amount on Record Apr 2002 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

20359 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.373 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,100,000Jul 2024 $14,0022025 Amount on Record Aug 2018 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20363 Portside Dr

5 bd · 4 ba · 2,723 sqft · 0.471 acres

Last Sale Tax Bill Prior Sale Owner Records
$250,000Jun 1995 $7,8892025 —Jun 1995 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20367 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.496 acres

Last Sale Tax Bill Prior Sale Owner Records
$318,000Aug 2001 $10,9942025 Amount on Record Jun 1996 1 Name on Record AssessorUpdated Jun 2026

20370 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.269 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$254,000Jun 1996 $5,9352025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20371 Portside Dr

4 bd · 3 ba · 2,282 sqft · 0.364 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$315,000Oct 1998 $6,8862025 Amount on Record Aug 1993 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20374 Portside Dr

4 bd · 3 ba · 2,072 sqft · 0.26 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,450,000Oct 2025 $10,5152025 Amount on Record Feb 2008 1 Name on Record Owner Occupied Assessor + 8 DocumentsUpdated Jun 2026

20375 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.379 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,190,000Mar 2025 $4,8402025 —Mar 2007 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

20378 Portside Dr

4 bd · 3 ba · 2,446 sqft · 0.255 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$6,4662025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

20379 Portside Dr

4 bd · 3 ba · 2,382 sqft · 0.455 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$683,000Jun 2011 $11,3902025 —Dec 2012 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20383 Portside Dr

4 bd · 3 ba · 2,072 sqft · 0.434 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$810,000Mar 2019 $11,7552025 Amount on Record Sep 1994 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20387 Portside Dr

3 bd · 2 ba · 1,647 sqft · 0.454 acres

Last Sale Tax Bill Prior Sale Owner Records
$520,000Sep 2010 $8,9292025 Amount on Record Aug 2005 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20388 Portside Dr

4 bd · 3 ba · 2,281 sqft · 0.244 acres · Pool

Last Sale Tax Bill Prior Sale Owner Records
$139,000Feb 1993 $6,5002025 2 Names on Record Owner Occupied AssessorUpdated Jun 2026

20391 Portside Dr

4 bd · 3 ba · 1,981 sqft · 0.506 acres

Last Sale Tax Bill Prior Sale Owner Records
$740,000Jan 2020 $10,6592025 Amount on Record Sep 2011 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

20395 Portside Dr

4 bd · 3 ba · 2,072 sqft · 0.548 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,3772025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

20397 Portside Dr

4 bd · 3 ba · 2,282 sqft · 0.305 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,300,000Aug 2025 $16,4192025 —Aug 2024 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Jun 2026

Property Records in Nearby Streets