San Mateo County property records for 21 addresses on Grunion Ct, Foster City, CA · Last verified October 2026
| Properties | 21 |
|---|---|
| Median Sale Price | $1,180,000 |
| Deeds and Mortgages on File | 22 |
| Median Price per Sqft | $513 |
| Owner Occupied | 90% |
| Median Annual Tax Bill | $13,042 |
| Median Year Built | 1967 |
| Median Ownership Tenure | 20 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
300 Grunion Ct |
5 bd · 3 ba · 2,540 sqft built 1966 · 0.204 acres | $810,000 Aug 2002 | $13,463 2025 | Assessor + 4 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
310 Grunion Ct |
3 bd · 2 ba · 1,890 sqft built 1966 · 0.199 acres | $1,476 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
311 Grunion Ct |
4 bd · 3 ba · 2,340 sqft built 1966 · 0.193 acres | $1,055,000 May 2006 | $16,957 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
320 Grunion Ct |
5 bd · 3 ba · 2,540 sqft built 1969 · 0.152 acres | $700,000 May 2000 | $12,766 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
321 Grunion Ct |
5 bd · 3 ba · 2,540 sqft built 1967 · 0.116 acres | $1,100,000 May 2007 | $17,324 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
330 Grunion Ct |
4 bd · 3 ba · 2,380 sqft built 1966 · 0.138 acres | $421,500 Dec 1991 | $9,286 2025 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
331 Grunion Ct |
4 bd · 2 ba · 1,780 sqft built 1967 · 0.118 acres | $300,000 Aug 1988 | $6,381 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
340 Grunion Ct |
4 bd · 3 ba · 2,450 sqft built 1966 · 0.154 acres | $730,000 Nov 2000 | $13,042 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
341 Grunion Ct |
3 bd · 2 ba · 1,860 sqft built 1966 · 0.139 acres | $820,000 Oct 2011 | $12,320 2025 | Assessor Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
350 Grunion Ct |
3 bd · 2 ba · 1,860 sqft built 1967 · 0.159 acres | $925,000 Sep 2007 | $14,638 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
351 Grunion Ct |
3 bd · 2 ba · 1,700 sqft built 1968 · 0.139 acres | $349,000 Sep 1988 | $7,930 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
360 Grunion Ct |
4 bd · 2.5 ba · 2,300 sqft built 1968 · 0.143 acres | $1,180,000 Aug 2007 | $18,277 2025 | Assessor Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
361 Grunion Ct |
3 bd · 2 ba · 1,700 sqft built 1968 · 0.119 acres | $4,215 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
370 Grunion Ct |
4 bd · 2.5 ba · 2,300 sqft built 1968 · 0.145 acres | $1,680,000 Sep 2021 | $24,401 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
371 Grunion Ct |
3 bd · 3 ba · 2,121 sqft built 1968 · 0.119 acres | $975,000 May 2007 | $17,204 2025 | Assessor + 3 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
380 Grunion Ct |
4 bd · 2.5 ba · 2,300 sqft built 1968 · 0.141 acres | $409,000 Feb 1993 | $13,015 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
381 Grunion Ct |
4 bd · 2.5 ba · 2,300 sqft built 1968 · 0.129 acres | $428,000 Dec 1989 | $9,461 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
390 Grunion Ct |
4 bd · 2.5 ba · 2,730 sqft built 1968 · 0.143 acres | $2,550,000 Dec 2023 | $30,707 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
391 Grunion Ct |
3 bd · 2 ba · 1,990 sqft built 1967 · 0.134 acres | $5,163 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
397 Grunion Ct |
4 bd · 2 ba · 1,880 sqft built 1967 · 0.192 acres | $925,000 Nov 2005 | $14,922 2025 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
398 Grunion Ct |
6 bd · 3 ba · 2,775 sqft built 1967 · 0.185 acres | $1,500,000 Mar 2017 | $21,713 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |