San Francisco Office MarketBeat Q1 2026

San Francisco's office market in Q1 2026 experienced significant improvement, with overall vacancy declining 110 basis points to 31.6%, net absorption reaching 896,000 square feet year-to-date, and asking rents rising to $69.16 per square foot, driven by record venture capital activity and strong leasing demand concentrated in artificial intelligence and tech sectors. Leasing activity reached 3.7 million square feet with AI companies accounting for nearly 50% of new deals, while notable transactions included Anthropic's 480,000-square-foot headquarters lease and the Transamerica Pyramid sale for $691 million, indicating initial signs of market stabilization despite elevated vacancy in lower-quality space.