San Francisco Strikes Decade’s Largest Office Lease Deal

A Decade Without Deals This Big

The Commercial Property Executive reports that San Francisco’s office market has struggled to secure anchor tenants amid rising vacancies and a shifting tenant base since the pandemic, with most large private sector deals on ice. The city’s new commitment at 1455 Market St. breaks that dry spell, representing the largest office lease in San Francisco since 2018, according to the San Francisco Chronicle. The move marks a rare vote of confidence in a famously battered downtown. With tech consolidating and some major occupiers shrinking footprints, public sector and AI-related tenants have emerged as rare growth drivers in core submarkets.

The Details

San Francisco will expand its footprint at 1455 Market St., a 1.1M SF tower owned by Hudson Pacific. The city will lease another 502,000 SF, pushing its occupancy above 900,000 SF. The 21-year lease carries a rate of $40 PSF. The agreement resets rent below previously planned escalations. Total lease value exceeds $1B.

SFMTA and the Human Services Agency will relocate in late 2027. The City Attorney’s office and other departments will follow. The tower offers modern amenities, LEED Gold certification, ENERGY STAR status, and floorplates reaching 90,000 SF.

Public Sector Bets on a Troubled Market

San Francisco’s office market continues a slow recovery from remote work and tech cutbacks. AI firms support select submarkets, but challenges remain. Yardi Matrix reported a 570-basis-point vacancy decline through April 2026. Even so, vacancy remained high at 23.3%, above the 17.6% national average. Recent leasing gains from AI and technology firms in San Francisco have concentrated in a handful of top-quality buildings, reinforcing demand for premier assets. Average asking rents fell 3.4% year over year to $62.03 PSF. Only Manhattan posted higher rents. The 1455 Market lease signals confidence in downtown’s future. It also highlights the growing role of public agencies as anchor tenants.

Why It Matters

This deal reflects a broader shift in demand for large downtown office space. Tech absorption remains weak, and many occupiers continue consolidating. The public sector’s 21-year, $1B commitment sends a strong signal. It provides stability at a time of market uncertainty. By securing rent at $40 PSF, the city gains long-term savings. Meanwhile, the landlord trades near-term upside for predictable income. According to Yardi Matrix, San Francisco trails only Houston in vacancy among major US markets. Yet the city still commands the nation’s second-highest rents.

Consolidating agencies into one tower will absorb a major vacancy block. The move may also encourage other large tenants to reconsider downtown locations. The lease should strengthen confidence among lenders, developers, and landlords. Many still struggle to value office assets in a volatile market. The agreement will not solve the office sector’s challenges. However, it proves that well-located, upgraded towers can still attract major tenants. New speculative development remains limited by weak demand and tight capital. As a result, stabilized assets continue gaining importance. The combination of fixed rent, long duration, and government tenancy could influence future underwriting standards. It may also shape concession and renewal negotiations across the market.

What’s Next

This lease ranks among the largest municipal office commitments in the country. Industry attention will now shift to its impact on downtown recovery. Hudson Pacific gains a stable, long-term cash flow base at 1455 Market St. At the same time, the city can reduce reliance on older, less efficient buildings.

Market participants will watch for similar moves by other government agencies. They will also monitor whether AI and tech firms pursue comparable consolidations. Vacancy still exceeds 23%, and leasing activity remains muted. Even so, this transaction could serve as both a lifeline and a blueprint for office asset survival in San Francisco.