Family Office Briefing on research byKidder Matthews·Feb 13, 2026
I-680 CORRIDOR OFFICE MARKET REPORT - 4th Quarter 2025
Tri-Valley office market experiences elevated vacancies and stable rents in 4Q 2025 — family offices should consider co-GP opportunities with disciplined operators.
2025
Key Metrics
| Metric | Value |
|---|---|
| Overall Office Vacancy Rate | 27.64% |
| Class A Vacancy Rate | 31.91% |
| Class B Vacancy Rate | 18.79% |
| Flex/R&D Vacancy Rate | 18.81% |
| Average Asking Lease Rate | 3.10PSF |
Metrics extracted from the source report and independently fact-checked. Method →
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Kidder Matthews
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