AI Now Occupies 10% of San Francisco Office Inventory

San Francisco’s AI Surge Changes the Office Math

The Real Deal reports that San Francisco’s office market is undergoing a seismic shift, fueled by the rapid proliferation of artificial intelligence companies. According to JLL, as of last week AI firms have taken over 8.5M SF—roughly 10 percent of all office space in the city. Since the start of 2026 alone, AI tenants have committed to 2.4M SF, continuing a trend that has defied broader market headwinds. In contrast to the city’s struggle with high vacancy—32 percent as of Q2—this swift uptick from the AI sector has redefined tenant demand, particularly for newer, high-quality space.

This expansion comes at a pivotal moment for San Francisco CRE. In the first half of 2022, the entire market combined inked just 3M SF of leasing transactions across all industries, as reported by Savills. The contrast is stark: what was a single-digit slice of the market just two years ago is now occupying every tenth square foot, with little overlap between AI firms and conventional tech giants like Google and Meta.

The Details

JLL’s data shows that AI’s San Francisco presence has jumped nearly 700 percent by square footage and 1,700 percent by headcount since 2022. The city had only 23 active AI tenants in 2022 occupying 1.1M SF; that figure doubled by 2023, and today about 413 AI firms occupy 8.5M SF. Recent headline commitments, like Anthropic’s 420,000 SF at 300 Howard and OpenAI’s 280,000 SF at the former Dropbox HQ, are not even fully reflected in these totals because buildouts are ongoing.

Demand in 2026 remains robust, with AI companies actively seeking more than 2M SF of space, per JLL’s Alexander Quinn. Approximately 10 percent of new AI leasing YTD is for research and development layouts—a new trend for urban San Francisco—as automation and robotics-focused companies look for space configured beyond traditional cubicles.

AI Drives R&D Demand and Expands Urban Boundaries

Historically, R&D operations have gravitated toward Silicon Valley or the Peninsula, where space costs less and layouts offer more flexibility. But CRE brokers now note a shift. AI companies want robotics labs and R&D operations closer to talent and venture capital.

The broader demand for specialized research space extends beyond AI. Amgen recently committed $600M to expand its California R&D footprint. This change is directly impacting major planned and under-construction projects. In Dogpatch, developers are purpose-building flexible R&D and office components to capture this demand.. If the trend holds, downtown San Francisco could see a new phase of office product, featuring spaces designed for collaboration and hardware innovation instead of pure software development.

Why It Matters

San Francisco’s standing as an innovation hub has never been so intimately bound to a single subsector. The jump to 8.5M SF of AI-leased office stock represents a lifeline for the city’s embattled office market—even as vacancy remains stubbornly high at roughly 32 percent, per JLL’s Q2 data. What stands out isn’t just the headline number, but the composition: moves by Anthropic, OpenAI, and over 400 other firms point to a lasting secular shift rather than a short-term flight to quality.

This activity is also influencing the physical design of office assets in San Francisco. Landlords now must weigh the technical demands of AI and robotics—for example, larger contiguous floor plates and increased power capacity—when repositioning Class A and mixed-use properties. The demand for flexible and R&D space already figures into revised development plans at projects like Pier 70 and Dogpatch Power Station, with developers banking on AI occupiers to anchor future phases of their portfolios.

The city’s commercial future is increasingly being written by this cohort. As more traditional tech companies retrench or shed excess space, AI’s appetite is proving uniquely resilient, underscoring a potential template for other US markets grappling with post-pandemic office vacancy.

What’s Next

More than 2M SF of demand from AI companies remains outstanding, with tenants actively touring and negotiating for additional large blocks, per JLL. Expect 2026 to bring further commitments, particularly as research-centric tenants seek space integrated within, not outside, city limits. Developers behind large mixed-use and office-to-R&D conversions—like Pier 70, Dogpatch Power Station, and Candlestick—will be watching closely, as preleasing to AI tenants could unlock new financing and accelerate timelines. Ultimately, San Francisco’s ability to accommodate this new class of occupier may shape whether it regains its footing as the innovation capital of the US office market.