Santa Clara County property records for 20 addresses on Costello Dr, Los Altos, CA · Last verified August 2026
| Properties | 20 |
|---|---|
| Median Sale Price | $3,900,000 |
| Deeds and Mortgages on File | 31 |
| Median Price per Sqft | $1,056 |
| Owner Occupied | 100% |
| Median Annual Tax Bill | $34,922 |
| Median Year Built | 1961 |
| Median Ownership Tenure | 14 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 4.5 ba · 3,843 sqft · built 2006 · 0.474 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,032,000Dec 2009 | $47,1202025 | Amount on Record Mar 2006 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
5 bd · 4.5 ba · 6,489 sqft · built 2016 · 0.473 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,970,000Jun 2012 | $77,2852025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated May 2026 |
3 bd · 2.5 ba · 2,810 sqft · built 1955 · 0.288 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,201,750Jun 2012 | $34,9222025 | Amount on Record Aug 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated May 2026 |
4 bd · 3 ba · 2,539 sqft · built 1956 · 0.307 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,800,000Feb 2007 | $30,0232025 | —Mar 2016 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
6 bd · 5.5 ba · 4,755 sqft · built 2016 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,830,000Dec 2012 | $61,7142025 | —Dec 2012 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 5 ba · 3,921 sqft · built 2012 · 0.431 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,900,000Jul 2012 | $58,7542025 | —Aug 2015 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Oct 2025 |
6 bd · 3.5 ba · 2,790 sqft · built 1956 · 0.524 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,2012025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2.5 ba · 3,258 sqft · built 1955 · 0.455 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $765,000Nov 1997 | $20,2612025 | —Nov 1997 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2.5 ba · 2,222 sqft · built 1956 · 0.534 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,7532025 | —Feb 2016 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 3.5 ba · 3,632 sqft · built 1956 · 0.376 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,150,000Mar 2015 | $59,0892025 | Amount on Record May 1996 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |
3 bd · 3 ba · 2,829 sqft · built 1957 · 0.589 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,375,000Apr 2008 | $38,3902025 | 1 Name on Record Owner Occupied | AssessorUpdated Oct 2025 |
4 bd · 5 ba · 3,138 sqft · built 1957 · 0.352 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,407,500Aug 2003 | $27,8602025 | —Jan 2013 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 4 ba · 3,630 sqft · built 2005 · 0.451 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $750,000Mar 1997 | $28,9042025 | —Aug 2012 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 3 ba · 3,536 sqft · built 1956 · 0.509 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,736,000Mar 2017 | $51,8482025 | Amount on Record Aug 2012 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated May 2026 |
4 bd · 3 ba · 3,949 sqft · built 1957 · 0.476 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,100,000Jan 2017 | $45,0522025 | Amount on Record Jan 2007 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated May 2026 |
3 bd · 3 ba · 3,213 sqft · built 1965 · 0.568 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $632,500Oct 1994 | $16,4132025 | —Apr 2002 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
7 bd · 4 ba · 3,925 sqft · built 1972 · 0.913 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,8592025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2 ba · 2,064 sqft · built 1961 · 0.654 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,910,000Sep 2025 | $10,2152025 | —Aug 2008 | 2 Names on Record Owner Occupied | AssessorUpdated Feb 2026 |
5 bd · 5 ba · 3,911 sqft · built 1962 · 0.606 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,2852025 | —Mar 2004 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2025 |
4 bd · 4 ba · 4,015 sqft · built 1970 · 0.689 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,157,000Mar 2024 | $75,0872025 | 3 Names on Record Owner Occupied | Assessor + 6 DocumentsUpdated Oct 2025 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |