San Bernardino County property records for 53 addresses on E Guasti Rd, Ontario, CA · Last verified August 2026
| Properties | 53 |
|---|---|
| Median Sale Price | $12,028,000 |
| Deeds and Mortgages on File | 62 |
| Median Price per Sqft | $408 |
| Owner Occupied | 13% |
| Median Annual Tax Bill | $35,292 |
| Median Year Built | 2006 |
| Median Ownership Tenure | 11 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
1,680 sqft · built 1966 · 8.8 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $22,1882025 | 1 Name on Record | AssessorUpdated Jul 2026 |
4,670 sqft · built 1977 · 1.67 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,6192025 | 2 Names on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
233,648 sqft · built 1979 · 29.4 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $299,2092025 | 2 Names on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
10,120 sqft · built 2008 · 1.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,195,000Feb 2015 | $28,7962025 | —Apr 2005 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
1.52 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Dec 2022 | $20,7892025 | Amount on Record Feb 2015 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
1.6 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $40,700,000Feb 2015 | $22,0942025 | —Feb 2015 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
149,946 sqft · built 2008 · 2.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $38,500,000Dec 2022 | $424,7282025 | Amount on Record Feb 2015 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record | AssessorUpdated Sep 2023 |
6.02 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,028,000May 2022 | $79,7722025 | Amount on Record Dec 2017 | 1 Name on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
2.07 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,500,000Dec 2017 | $27,5102025 | —Apr 2019 | 1 Name on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
2.49 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,028,000May 2022 | $33,0472025 | —Feb 2020 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,883 sqft · built 2006 · 0.112 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,179,000May 2011 | $8,0102025 | —May 2011 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4,883 sqft · built 2006 · 0.112 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,179,000May 2011 | $8,0102025 | —May 2011 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
99,968 sqft · built 2005 · 6.53 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $22,100,000Dec 2019 | $256,0442025 | Amount on Record Apr 2015 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3,249 sqft · built 2006 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,650,000Jul 2020 | $9,4662025 | Amount on Record Sep 2005 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3,249 sqft · built 2006 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,650,000Jul 2020 | $9,4662025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3,912 sqft · built 2006 · 0.089 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,600,000Nov 2022 | $17,6192025 | —Dec 2010 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
75,000 sqft · built 2007 · 0.671 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $16,500,000Dec 2019 | $190,7732025 | Amount on Record Apr 2015 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
154,980 sqft · built 2008 · 0.72 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $972025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
53,911 sqft · built 2006 · 3.41 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,200,000Apr 2026 | $85,9202025 | —Aug 2007 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
53,911 sqft · built 2004 · 2.58 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,200,000Apr 2026 | $83,5742025 | Amount on Record Feb 2013 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
3,249 sqft · built 2006 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,300,000Mar 2016 | $8,1602025 | —Jun 2011 | 1 Name on Record | AssessorUpdated Jul 2026 |
3,249 sqft · built 2006 · 0.074 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,300,000Mar 2016 | $8,1602025 | —Jun 2011 | 1 Name on Record | AssessorUpdated Jul 2026 |
510,940 sqft · built 1992 · 6.66 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $36,850,000Nov 2017 | $443,7022025 | —Nov 2006 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,066 sqft · built 2006 · 0.093 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $340,000May 2012 | $9,1112025 | Amount on Record Nov 2005 | 2 Names on Record | AssessorUpdated Jul 2026 |
4,066 sqft · built 2006 · 0.093 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $835,500Nov 2005 | $12,1022025 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,066 sqft · built 2006 · 0.093 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,5072025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,066 sqft · built 2006 · 0.093 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $854,000Jul 2011 | $6,5072025 | —Dec 2010 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
4,883 sqft · built 2006 · 0.112 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,300,000Oct 2023 | $17,8132025 | Amount on Record Sep 2020 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
4,883 sqft · built 2006 · 0.112 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,300,000Oct 2023 | $17,8132025 | Amount on Record Sep 2020 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
65,281 sqft · built 2006 · 0.499 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2009 | $163,4642025 | 1 Name on Record | AssessorUpdated Jul 2026 |
79,455 sqft · built 2019 · 5.05 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,519,000Sep 2014 | $223,8512025 | —Jan 2002 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
built 2020 · 4.15 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,396,000Oct 2015 | $82,4482023 | Amount on Record Nov 2009 | 1 Name on Record | AssessorUpdated Oct 2023 |
72,468 sqft · built 2018 · 3.35 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,300,000Apr 2016 | $203,4082025 | Amount on Record Feb 2008 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
155,577 sqft · built 2011 · 3.52 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2007 | $252,7782025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
135,891 sqft · built 2020 · 10.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $341,2792025 | 1 Name on Record | AssessorUpdated Jul 2026 |
101,630 sqft · built 2011 · 7.99 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,900,000Dec 2007 | $475,0472025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
7.97 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,250,000May 2002 | $35,2922025 | —Jul 2020 | 1 Name on Record | Assessor + 4 DocumentsUpdated Jul 2026 |
120 sqft · built 1986 · 0.977 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2006 | $7,7752025 | —Dec 1996 | 1 Name on Record | AssessorUpdated Jul 2026 |
208,832 sqft · built 1994 · 11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $20,180,000Oct 2014 | $256,7032025 | —Mar 2013 | 1 Name on Record | Assessor + 4 DocumentsUpdated Jul 2026 |
15,561 sqft · built 1980 · 2.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $23,1532025 | 1 Name on Record | AssessorUpdated Jul 2026 |
7,810 sqft · built 1980 · 4.53 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $23,0842025 | 1 Name on Record | AssessorUpdated Jul 2026 |
162,784 sqft · built 1982 · 4.6 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $56,8562025 | 1 Name on Record | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 31,892 sqft · built 1981 · 1.76 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,500,000Oct 2022 | $137,5032025 | Amount on Record Nov 2018 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 32,288 sqft · built 1969 · 35.8 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 2023 | $196,8712025 | —Feb 2007 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
45,571 sqft · built 1988 · 31.8 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 1993 | $279,8182025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
57,390 sqft · built 1989 · 3.1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,100,000Aug 2015 | $88,9612025 | —Apr 1996 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
1.5 ba · 64,512 sqft · built 1988 · 3.35 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,335,000May 2021 | $152,5522025 | —Mar 2006 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
113,664 sqft · built 1988 · 5.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2001 | $73,0112025 | —Feb 2006 | 2 Names on Record | AssessorUpdated Jul 2026 |
2 ba · 11,923 sqft · built 1988 · 5.82 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 1999 | $67,9002025 | 1 Name on Record | AssessorUpdated Jul 2026 |
58,835 sqft · built 1988 · 3.15 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 1995 | $27,9652025 | 2 Names on Record | AssessorUpdated Jul 2026 |
128,899 sqft · built 2002 · 6.11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,600,000Nov 2014 | $134,6712025 | Amount on Record Dec 2000 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
2.5 ba · 36,264 sqft · built 1988 · 2.1 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,233,000Dec 1994 | $21,9032025 | Amount on Record Feb 1994 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |