Databricks expands downtown San Francisco headquarters footprint at One Sansome, deepening long-term office commitment

What changed in Databricks’ downtown strategy

Databricks has expanded its planned downtown San Francisco headquarters footprint at One Sansome Street, increasing the amount of space it intends to occupy as it prepares for a move targeted for 2026. The company previously secured roughly 150,000 square feet at the Financial District tower for a new headquarters and has now added more space within the same building, signaling a larger long-term bet on in-person work in the city’s core.

The earlier headquarters lease was framed as part of a broader multi-year investment plan tied to downtown operations, and included plans to keep the company’s large annual Data + AI Summit in San Francisco through 2030. Databricks has said the headquarters move is intended to support return-to-office operations following a renovation period leading into 2026.

How the One Sansome buildout fits into the market

The additional headquarters space comes amid a pattern of large “flight-to-quality” leases concentrated in newer or heavily upgraded Class A properties, even as overall downtown office vacancy has remained elevated since the pandemic. In that environment, AI-focused and data-infrastructure firms have been among the more active segments signing sizable leases, providing incremental demand in a market where many technology companies reduced space in prior years.

Databricks’ decision to expand within One Sansome also reinforces an emerging preference among major tenants for centrally located buildings near transit and amenities. One Sansome, a prominent tower near Market Street, has marketed features that include a ground-level public area and large shared indoor space, aligning with tenant interest in collaboration-oriented offices.

Company growth signals beyond San Francisco

The downtown expansion is part of a wider Bay Area real estate buildout. In 2025, Databricks also signed a major lease in Sunnyvale for a full building at a downtown mixed-use development, with occupancy expected in 2026 after tenant improvements. The company has described the Silicon Valley site as a hub for research and customer collaboration, complementing its San Francisco headquarters presence.

Key facts at a glance

• Headquarters location: One Sansome Street, San Francisco’s Financial District.
• Timeline: Renovations and phased occupancy are planned around 2026.
• Prior commitment: A roughly 150,000-square-foot headquarters lease announced in 2025.
• Additional move: A large Sunnyvale lease signed in 2025, with occupancy expected in late 2026.
• Event commitment: Data + AI Summit slated to remain in San Francisco through 2030.

For downtown San Francisco, the expansion adds another data point to a leasing recovery that has been uneven: concentrated in big, high-quality buildings and increasingly influenced by AI-adjacent companies seeking room for collaboration and growth.

Databricks has not publicly detailed the full scope of the added One Sansome space in a single consolidated disclosure, but the direction is clear: the company is increasing its downtown footprint as it builds toward its 2026 headquarters transition.