San Mateo County property records for 43 addresses on Isabella Ave, Atherton, CA · Last verified August 2026
| Properties | 43 |
|---|---|
| Median Sale Price | $19,600,000 |
| Deeds and Mortgages on File | 57 |
| Median Price per Sqft | $2,422 |
| Owner Occupied | 63% |
| Median Annual Tax Bill | $92,063 |
| Median Year Built | 1968 |
| Median Ownership Tenure | 16 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 2.5 ba · 2,260 sqft · built 1951 · 0.569 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,1432025 | —Feb 2016 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3.5 ba · 4,200 sqft · built 1990 · 0.447 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,325,000Oct 2022 | $63,4112025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 4 ba · 4,120 sqft · built 1990 · 0.463 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,700,000Apr 2015 | $51,5572025 | Amount on Record Jul 2009 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 4.5 ba · 3,567 sqft · built 1951 · 0.417 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,250,000May 2006 | $49,3902025 | —Sep 2011 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
6 bd · 6.5 ba · 6,000 sqft · built 1990 · 1.24 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,800,000Dec 1992 | $36,5142025 | 2 Owners on Record | AssessorUpdated Jul 2026 |
4 bd · 3.5 ba · 3,852 sqft · built 1951 · 0.393 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,250,000Mar 2016 | $65,3892025 | Amount on Record Mar 2013 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 10.5 ba · 14,599 sqft · built 2020 · 1.98 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,875,000Feb 2015 | $217,2312025 | Amount on Record Nov 2008 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 3.5 ba · 3,550 sqft · built 1925 · 0.835 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,2042025 | —Feb 2021 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2.5 ba · 3,437 sqft · built 1936 · 0.455 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,750,000Feb 2001 | $73,2992025 | —Jan 2014 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 5.5 ba · 6,890 sqft · built 1996 · 0.993 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $14,998,000Oct 2024 | $166,7012025 | Amount on Record Jun 2022 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 7 ba · 5,784 sqft · built 2021 · 0.573 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,250,000Jul 2018 | $136,4212025 | Amount on Record May 2017 | 2 Owners on Record | Assessor + 5 DocumentsUpdated Jul 2026 |
4 bd · 5.5 ba · 5,910 sqft · built 1993 · 1.06 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $21,8752025 | —Aug 1996 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 4 ba · 5,510 sqft · built 1929 · 1.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,825,000Apr 1992 | $45,8832025 | —Apr 2003 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 4.5 ba · 4,480 sqft · built 1951 · 1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 1993 | $23,4922025 | —Oct 2014 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 5.5 ba · 4,930 sqft · built 1997 · 1.03 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,747,500May 2005 | $92,0632025 | —Oct 1994 | 2 Owners on Record Owner Occupied | Assessor + 6 DocumentsUpdated Jul 2026 |
3 bd · 3 ba · 5,700 sqft · built 1966 · 2.02 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $16,000,000Sep 2012 | $155,7732025 | —Sep 2012 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
2.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $25,000,000May 2023 | $286,8602025 | Amount on Record Dec 2012 | Owner on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2 ba · 1,920 sqft · built 1930 · 3.78 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $100,000Feb 1999 | $122,3312025 | Amount on Record Jul 1998 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
6 bd · 6.5 ba · 18,559 sqft · built 2008 · 2.43 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $40,000,000Dec 2014 | $527,6602025 | Amount on Record Mar 2013 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1 bd · 1 ba · 750 sqft · built 2008 · 1.05 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,000,000May 2006 | $108,6182025 | 2 Owners on Record | AssessorUpdated Jul 2026 |
6 bd · 6.5 ba · 12,100 sqft · built 1993 · 1.32 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,800,000May 2015 | $170,9102025 | —Dec 2006 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3.5 ba · 3,770 sqft · built 1968 · 1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,1662025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
7 bd · 7.5 ba · 8,090 sqft · built 1965 · 1.76 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $19,600,000May 2022 | $230,0152025 | Amount on Record Jun 2007 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 5.5 ba · 14,050 sqft · built 1998 · 1.33 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,500,000Jul 2004 | $208,3122025 | Amount on Record Dec 2003 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 3.5 ba · 3,950 sqft · built 1964 · 0.986 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $750,000Jun 1983 | $35,6022025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 6 ba · 8,141 sqft · built 2014 · 1.94 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,200,000Dec 2010 | $158,9442025 | —Jun 1998 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
8 bd · 7.5 ba · 9,960 sqft · built 1882 · 2.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,8362025 | —Feb 2021 | 2 Owners on Record | Assessor + 5 DocumentsUpdated Jul 2026 |
7 bd · 5.5 ba · 6,690 sqft · built 1938 · 2.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $35,000Apr 1980 | $14,0302025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 4 ba · 4,180 sqft · built 1937 · 1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,732,000Sep 1996 | $37,4912025 | —Mar 2017 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 4.5 ba · 8,560 sqft · built 2004 · 1.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $16,000,000Oct 2000 | $277,9602025 | Amount on Record Feb 2000 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
6 bd · 7.5 ba · 14,942 sqft · built 2014 · 1.87 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $20,000,000Sep 2021 | $269,5642025 | Amount on Record Aug 2015 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 6.5 ba · 5,550 sqft · built 1949 · 1.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $16,1212025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 5.5 ba · 7,150 sqft · built 1938 · 1.14 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $14,4792025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
6 bd · 5.5 ba · 5,450 sqft · built 1961 · 1.11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $11,188,000Apr 2023 | $129,9792025 | —May 2017 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 4.5 ba · 5,360 sqft · built 1985 · 1.05 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,575,000Nov 1991 | $56,7712025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
6 bd · 6.5 ba · 8,420 sqft · built 1987 · 1.14 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $575,000Mar 1985 | $41,7982025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 5.5 ba · 14,608 sqft · built 2013 · 2.51 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $20,200,000May 2014 | $371,8912025 | Amount on Record Mar 2013 | Owner on Record | AssessorUpdated Jul 2026 |
6 bd · 5.5 ba · 10,660 sqft · built 2006 · 1.87 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 2003 | $72,2382025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
6 bd · 6.5 ba · 7,220 sqft · built 1980 · 1.8 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,400,000May 2009 | $135,1302025 | Amount on Record Jan 2000 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 3 ba · 4,100 sqft · built 1951 · 1.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2000 | $155,4782025 | —Apr 2000 | 2 Owners on Record | AssessorUpdated Aug 2026 |
3 bd · 3 ba · 2,980 sqft · built 1957 · 0.987 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,000,000Apr 2024 | $114,3252025 | Amount on Record Feb 2021 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 3,630 sqft · built 1948 · 2.02 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $39,000,000Jul 2024 | $213,3222025 | —Jul 2024 | Owner on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 3.5 ba · 3,050 sqft · built 1947 · 2.07 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $39,000,000Jul 2024 | $218,3422025 | —Jul 2021 | Owner on Record | Assessor + 3 DocumentsUpdated Jul 2026 |