San Francisco Class A Office Market

TL;DR

• Class A vacancy above 30% — historic high.
• Trophy rents have re-set 25-40% off 2019 peaks.
• Concessions at historic highs: 18-30 months of free rent and $150-$220/sqft TI on a 10-year deal.
• AI-led tenants drive nearly all positive net absorption.
• sublease">Sublease overhang concentrated in older Class B and SOMA tech-era stock.

Overview

San Francisco's office market is mid-cycle through the deepest tenant-favorable repricing of any major US market. Trophy stock — Salesforce Tower, the Transbay terminus, Mission Rock — is leasing again, but at materially lower headline rents and richer concessions than 2019.

Market snapshot

Composite Q1 2026 SF Class A market reports.

Lease norms

Modified-gross with operating-expense escalations over a base year. Rent-free of 18-30 months on a 10-year term is current market for trophy assets in lease-up. TI of $150-$220/sqft is achievable. Termination options at year 5 are increasingly negotiable.

Transit & access

BART, Muni, Caltrain, and the new Salesforce Transit Center anchor commute infrastructure. The Central Subway extension to Chinatown completed in 2023.

Tax

Combined federal + California corporate tax effectively reaches 27%. San Francisco gross receipts tax applies to most occupiers; payroll tax is now phased out.

Talent

Deepest AI/ML and senior software engineering talent pool globally. Average all-in compensation indexes 98 vs. New York's 100.

Notable Class A buildings

• Salesforce Tower · Transbay
• 181 Fremont · Transbay
• Mission Rock · Mission Bay
• 555 California Street · Financial District

Class A submarkets in San Francisco

• Transbay — The trophy core anchored by Salesforce Tower. (trophy)
• Financial District — The historic FiDi spine — Montgomery to California. (prime)
• Mission Bay & SoMa — Tech-led southern submarket. (prime)
• Jackson Square — Boutique HQ market in historic SF. (established)
• Mission Bay — Life-sciences and tech campus belt south of SOMA. (prime)
• South of Market (SOMA) — The post-2010 tech trophy spine. (trophy)

San Francisco deep-dives

• Rents and incentives — What does Class A rent cost and what concessions are typical?
• Sublease market — How deep is sublease availability and how does it price?
• ESG and LEED stock — How much certified stock exists and what premium does it command?
• Transit and commute — Which submarkets have the strongest transit access?
• Talent and salaries — What does the white-collar talent pool look like and how is it priced?
• Fit-out costs — What does a Class A fit-out cost per square foot?
• Flex vs lease — When does premium coworking beat a traditional lease?
• Taxes and incentives — What corporate, occupancy, and property taxes apply?
• Neighborhoods overview — Which Class A submarkets exist and how do they compare?
• Notable buildings — Which trophy assets define the market?
• Class A vs Class B — What is the spread between Class A and Class B and why?
• Leasing conventions — What lease structures, terms, and concessions are normal?
• Expansion checklist — What is the operational checklist for opening here?
• Relocation guide — How do you move into this market from another city?
• Frequently asked questions — Quick answers to the questions occupiers ask most.
• Operating expenses — What service charges, OpEx, and pass-throughs apply on top of rent?
• Growth and availability — How tight is current availability and what does the pipeline look like?
• Sustainability pathways — How do tenants land net-zero or science-based-target leases here?
• Hybrid work policy — How are hybrid policies shaping office demand here?
• Security and redundancy — What security, power, and connectivity redundancy are standard?
• Lab and R&D space — What does R&D-grade or wet-lab space look like in this market?
• Brand experience — How do trophy buildings function as brand experiences and showpieces?
• Fund strategy and flag — Which submarkets carry the strongest investor flag for funds?
• Exit and renewal — How do you handle a Class A renewal or exit cleanly here?
• Market cycle position — Where is this Class A market in its cycle right now?

San Francisco — frequently compared

• San Francisco vs Austin — Americas HQ shortlist: Austin vs San Francisco.
• San Francisco vs Boston — Americas HQ shortlist: Boston vs San Francisco.
• San Francisco vs Chicago — Americas HQ shortlist: Chicago vs San Francisco.
• San Francisco vs Los Angeles — Americas HQ shortlist: Los Angeles vs San Francisco.
• San Francisco vs Miami — Americas HQ shortlist: Miami vs San Francisco.
• San Francisco vs New York — Americas HQ shortlist: New York vs San Francisco.

Frequently asked questions

Is San Francisco a tenant's market right now?

Yes. Q1 2026 is the most tenant-favorable environment in the city since the early 2000s — both on rent and on concessions. Even trophy assets are negotiating.

Are AI tenants actually absorbing space?

Yes — nearly all positive net absorption in 2024-2026 is AI-driven. OpenAI, Anthropic, and a long tail of foundation-model and AI-application companies are the marginal demand.