San Mateo County property records for 49 addresses on W 20th Ave, San Mateo, CA · Last verified September 2026
| Properties | 131 |
|---|---|
| Median Sale Price | $925,000 |
| Deeds and Mortgages on File | 203 |
| Median Price per Sqft | $758 |
| Owner Occupied | 79% |
| Median Annual Tax Bill | $9,358 |
| Median Year Built | 1982 |
| Median Ownership Tenure | 14 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
42 units · Built 1982 · 1,208 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $739,000May 2026 | $8,4752025 | $915,00042 units |
42 units · Built 1982 · 1,198 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $868,000Oct 2024 | $9,0942025 | $887,00042 units |
2 bd · 1.5 ba · 1,180 sqft · built 1924 · 0.112 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $550,000Aug 1995 | $6,4782025 | —Feb 2021 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
built 1999 · 0.247 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $550,000Aug 1995 | $7,8822025 | —Feb 2021 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3,206 sqft · built 1956 · 0.246 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,800,000Jan 2018 | $3,8912025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1.53 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $77,4872025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,968 sqft · 5.4 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $104,2042025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2 bd · 2 ba · 1,552 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,194,000Jan 2025 | $2,9702025 | Amount on Record Jun 1996 | 2 Owners on Record Owner Occupied | Assessor + 8 DocumentsUpdated Jul 2026 |
2 bd · 2 ba · 1,434 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $429,000Feb 2000 | $8,6412025 | Amount on Record Jun 1998 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 1,420 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Oct 2003 | $9,7942025 | Amount on Record Dec 1999 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
2 bd · 2 ba · 1,434 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,230,000Apr 2024 | $15,1572025 | Amount on Record Dec 1996 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2 bd · 2 ba · 1,434 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $275,000Aug 1996 | $6,7692025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 1,420 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $568,000May 2011 | $9,9042025 | Amount on Record Sep 1996 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 1,434 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $810,000Mar 2015 | $12,7352025 | Amount on Record Oct 1996 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Sep 2026 |
2 bd · 2 ba · 1,552 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $948,000Nov 2016 | $14,1552025 | Amount on Record Jul 1996 | 2 Owners on Record | AssessorUpdated Aug 2026 |
2 bd · 2.5 ba · 1,507 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $584,000Dec 2008 | $9,7562025 | Amount on Record Jul 1996 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2 bd · 2.5 ba · 1,394 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $435,000Dec 2011 | $7,9512025 | Amount on Record Apr 2006 | 2 Owners on Record | AssessorUpdated Jul 2026 |
2 bd · 2.5 ba · 1,394 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,085,000Apr 2025 | $13,7912025 | Amount on Record Nov 2016 | 2 Owners on Record | Assessor + 1 DocumentUpdated Jul 2026 |
2 bd · 2.5 ba · 1,394 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $265,000Dec 1996 | $6,5872025 | —Dec 1996 | 2 Owners on Record Owner Occupied | AssessorUpdated Sep 2026 |
2 bd · 2 ba · 1,394 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $530,000Jun 2011 | $9,3582025 | Amount on Record Oct 2001 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
2 bd · 2.5 ba · 1,394 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,005,000Dec 2022 | $13,5432025 | Amount on Record Nov 2018 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
2 bd · 2.5 ba · 1,394 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,060,000Apr 2021 | $12,9542025 | Amount on Record Dec 1996 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2 bd · 2.5 ba · 1,507 sqft · built 1996 · 2.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,150,000Sep 2021 | $15,4222025 | Amount on Record Jul 1996 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 3 ba · 2,800 sqft · built 1947 · 0.208 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $11,6452025 | —May 2010 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 1.5 ba · 1,580 sqft · built 1948 · 0.234 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,8422025 | —Mar 1997 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
3.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $59,500Mar 1994 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 1,300 sqft · built 1942 · 0.116 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $290,000May 1997 | $7,3122025 | —May 1997 | 2 Owners on Record | AssessorUpdated Jul 2026 |
3 bd · 2 ba · 2,520 sqft · built 1947 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $357,500Nov 1993 | $11,3312025 | —Jun 2000 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,030 sqft · built 1940 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $975,000Aug 2011 | $15,7232025 | Amount on Record Jul 2002 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 1,050 sqft · built 1940 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,210,000Sep 2018 | $16,3272025 | —Mar 1999 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
2 bd · 1 ba · 1,000 sqft · built 1942 · 0.116 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,350,000Dec 2023 | $17,2462025 | Amount on Record Apr 2001 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
2 bd · 1 ba · 1,060 sqft · built 1940 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Feb 2021 | $3,2852025 | —Feb 2021 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 2,410 sqft · built 1942 · 0.132 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $255,000Apr 1992 | $8,5562025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2 bd · 1 ba · 1,050 sqft · built 1940 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2012 | $10,2562025 | 2 Owners on Record | AssessorUpdated Aug 2026 |
2 bd · 1 ba · 1,100 sqft · built 1942 · 0.116 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,415,000Jul 2021 | $19,6142025 | Amount on Record Dec 2013 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Sep 2026 |
2 bd · 1 ba · 1,060 sqft · built 1940 · 0.133 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,2862025 | —Feb 2019 | 2 Owners on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,830 sqft · built 1942 · 0.116 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $380,000Sep 1991 | $9,1272025 | —Feb 2010 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
6.38 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,3202025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 1,100 sqft · built 1942 · 0.119 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $488,000Jan 2003 | $10,0122025 | Amount on Record Aug 1997 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2 bd · 1 ba · 1,000 sqft · built 1942 · 0.119 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,500,000Apr 2025 | $14,7292025 | Amount on Record Nov 2018 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2 ba · 1,320 sqft · built 1942 · 0.125 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,1902025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 1,050 sqft · built 1942 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $430,000Oct 1999 | $9,4862025 | —Oct 1999 | 2 Owners on Record | AssessorUpdated Sep 2026 |
2 bd · 1 ba · 1,050 sqft · built 1942 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $535,000Jun 2003 | $10,6842025 | Amount on Record Aug 1996 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
2 bd · 1 ba · 950 sqft · built 1940 · 0.119 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,0412025 | —Mar 2009 | 2 Owners on Record | AssessorUpdated Jul 2026 |
3 bd · 2 ba · 1,240 sqft · built 1940 · 0.119 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $439,000Apr 1999 | $10,2702025 | —Apr 1999 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 2.5 ba · 1,690 sqft · built 1942 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,2282025 | —May 1999 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 1,050 sqft · built 1942 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,395,000Feb 2019 | $19,8852025 | Amount on Record Dec 2015 | 2 Owners on Record Owner Occupied | Assessor + 5 DocumentsUpdated Sep 2026 |
2 bd · 1 ba · 1,050 sqft · built 1942 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Nov 2003 | $13,5062025 | Amount on Record Sep 2000 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,340 sqft · built 1942 · 0.115 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,478,000Apr 2019 | $20,6892025 | Amount on Record Aug 2008 | 2 Owners on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |