--- title: "Boston vs San Francisco: Class A office comparison" description: "Side-by-side Class A office comparison for Boston and San Francisco — rent, vacancy, talent, tax, lease norms, transit, and top submarkets." canonical: https://classa.info/compare/boston-vs-san-francisco pageType: comparison lastUpdated: 2026-04-15T00:00:00.000Z license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)." --- > Boston ($78/sqft, 19.5% vacancy) and San Francisco ($78/sqft, 31.5% vacancy) compete on different axes: Boston on rent and tax and San Francisco on talent depth. ## TL;DR - Class A rent: Boston $78/sqft vs San Francisco $78/sqft. - Vacancy: Boston 19.5% vs San Francisco 31.5%. - Talent index: Boston 95 vs San Francisco 98. - Corporate tax: Boston 28% vs San Francisco 27%. - Premium flex/seat/month: Boston $1,140 vs San Francisco $1,280. # Boston vs San Francisco: Class A office comparison **Boston ($78/sqft, 19.5% vacancy) and San Francisco ($78/sqft, 31.5% vacancy) compete on different axes: Boston on rent and tax and San Francisco on talent depth.** ## TL;DR - [Class A](/glossary/class-a) rent: Boston $78/sqft vs San Francisco $78/sqft. - Vacancy: Boston 19.5% vs San Francisco 31.5%. - Talent index: Boston 95 vs San Francisco 98. - Corporate tax: Boston 28% vs San Francisco 27%. - [Premium flex](/topics/lease-vs-flex)/seat/month: Boston $1,140 vs San Francisco $1,280. ## Market data side-by-side | Metric | Boston | San Francisco| | Region | Americas | Americas| | Country | United States | United States| | Class A rent (USD/sqft/yr) | $78 | $78| | Class A rent (local) | 78 USD | 78 USD| | Vacancy | 19.5% | 31.5%| | Trend | flat | rising| | Prime yield | 6.2% | 6.5%| | Premium flex / seat / month (USD) | $1,140 | $1,280| | Submarkets covered | 6 | 6| | Corporate tax | 28% | 27%| ## Lease norms | Metric | Boston | San Francisco| | Typical term | 10 yrs | 7 yrs| | Typical rent-free | 18 mos | 22 mos| | Lease norms | Modified-gross with op-ex escalations. Rent-free 18-24 months on 10-year term standard. Lab leases carry distinct economics — base rent plus operating expenses plus utilities pass-through. | 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.| | Tax note | Combined federal + Massachusetts corporate tax 28%. | Combined federal + California corporate tax effectively reaches 27%. San Francisco gross receipts tax applies to most occupiers; payroll tax is now phased out.| ## Talent | Metric | Boston | San Francisco| | Talent index (0–100) | 95 | 98| | Talent note | Deepest STEM and life-sciences talent pool in the US — anchored by MIT, Harvard, BU. Average all-in compensation indexes 95. | Deepest AI/ML and senior software engineering talent pool globally. Average all-in compensation indexes 98 vs. New York's 100.| ## Transit & commute **Boston:** MBTA subway, commuter rail, and Logan Airport access. Silver Line connects the Seaport to South Station. **San Francisco:** BART, Muni, Caltrain, and the new Salesforce Transit Center anchor commute infrastructure. The Central Subway extension to Chinatown completed in 2023. ## Top submarkets — Boston - [**Cambridge & Kendall Square**](/cities/boston/cambridge-kendall) — [trophy tier](/topics/trophy-asset-selection) · $110/sqft/yr - [**Kendall Square**](/cities/boston/kendall-square) — trophy tier · $105/sqft/yr - [**Seaport**](/cities/boston/seaport) — trophy tier · $85/sqft/yr ## Top submarkets — San Francisco - [**Transbay**](/cities/san-francisco/transbay) — trophy tier · $105/sqft/yr - [**South of Market (SOMA)**](/cities/san-francisco/south-of-market) — trophy tier · $92/sqft/yr - [**Mission Bay & SoMa**](/cities/san-francisco/mission-bay-soma) — prime tier · $80/sqft/yr ## Decision criteria ### Pick by cost Boston and San Francisco are roughly cost-equivalent in USD/sqft. ### Pick by talent depth San Francisco has the deeper talent index (98/100 vs 95/100). ### Pick by tax San Francisco has the lower headline corporate tax (27% vs 28%). Local incentives can change the effective rate materially. ### Pick by lease optionality Boston typical term is 10 years with 18 months free; San Francisco runs 7 years with 22 months free. ### Pick by transit Boston: MBTA subway, commuter rail, and Logan Airport access. Silver Line connects the Seaport to South Station. San Francisco: BART, Muni, Caltrain, and the new Salesforce Transit Center anchor commute infrastructure. The Central Subway extension to Chinatown completed in 2023. ## Run a 4-city comparison Score Boston, San Francisco and up to two more markets side-by-side on Class A rent, vacancy, talent, corporate tax, and premium flex pricing — all in USD. [**Run a 4-city comparison →**](/tools/city-comparator) ## Frequently asked questions ****Is Class A office cheaper in Boston or San Francisco?**** : Roughly comparable in USD per sqft. ****Which has better talent depth, Boston or San Francisco?**** : San Francisco indexes higher on talent depth (98 vs 95). ****Which has more sublease availability, Boston or San Francisco?**** : San Francisco carries higher vacancy (31.5% vs 19.5%) and therefore typically more [sublease](/topics/sublease-strategy)">sublease overhang. ****What lease term should I expect in Boston vs San Francisco?**** : Boston typical term is 10 years with 18 months rent-free; San Francisco typical term is 7 years with 22 months rent-free. ****How does transit and commuter access compare?**** : Boston: MBTA subway, commuter rail, and Logan Airport access. Silver Line connects the Seaport to South Station. San Francisco: BART, Muni, Caltrain, and the new Salesforce Transit Center anchor commute infrastructure. The Central Subway extension to Chinatown completed in 2023. ## Editorial provenance Reviewed by [**Miriam Hollander**](/about/authors/miriam-hollander) — Lead market analyst. Last updated 2026-04-15. See our [methodology](/about/methodology) and [editorial standards](/about/editorial-standards). ### Primary sources for this page - [CBRE Marketview reports](https://www.cbre.com/insights) — CBRE - [JLL Office Insight](https://www.jll.com/en/trends-and-insights) — JLL - [Cushman & Wakefield Marketbeat](https://www.cushmanwakefield.com/en/insights) — Cushman & Wakefield - [Savills World Research](https://www.savills.com/research_articles/) — Savills - [Colliers Global Office Outlook](https://www.colliers.com/en/research) — Colliers [Full sources index](/about/sources) · [Submit a correction](/about/corrections) --- Citation: Source: Class A Atlas (https://classa.info/compare/boston-vs-san-francisco), updated 2026-04-15T00:00:00.000Z.