After several years of elevated vacancy, downsizing and uncertainty surrounding workplace demand, portions of the office market have finally begun showing signs of recovery.
But in several major gateway markets, this recovery is driven by a concentrated source of demand: artificial intelligence companies.
A surge in venture capital investment, hiring and infrastructure expansion tied to AI has translated into meaningful office leasing activity across markets such as San Francisco, Silicon Valley, Manhattan, Boston and Seattle. Yet as AI firms account for a growing share of recent leasing momentum, a larger question is beginning to emerge for office owners and investors: How durable is this recovery if so much demand is tied to one rapidly expanding — and potentially overheated — sector?
As reported by Propmodo, Manhattan is on track for its strongest office leasing year since 2000, largely driven by AI companies, which have already leased more space in Q1 2026 than all of 2024. On the other side of the country, AI companies have leased approximately 21 million square feet of office space in San Francisco and Silicon Valley since 2019. These markets join Boston and Seattle that have also seen millions of square feet of AI leasing in recent years.
In Manhattan alone, firms such as Anthropic, Harvey AI and Norm AI have become major contributors to recent leasing momentum.
At face value, those numbers appear highly encouraging for a sector still working through post-pandemic disruption. But they may also point to a growing concentration risk within parts of the office market.
The current office recovery remains highly uneven. Vacancy rates across many U.S. markets remain historically elevated, refinancing challenges continue pressuring asset values and demand remains heavily concentrated in newer, highly amenitized buildings. Much of the recent leasing activity is not broad-based corporate expansion — it is increasingly tied to a narrow group of fast-growing technology firms benefiting from extraordinary levels of investor capital.
The scale of that capital inflow is difficult to overstate.
According to the OECD, venture capital investment into AI firms reached approximately $259 billion globally in 2025 alone, representing more than 60% of all global venture capital investment activity.
Separate data from Dealroom found AI startups attracted roughly $110 billion in investment during 2024 even as overall startup funding declined 12%, underscoring how aggressively capital continues concentrating around the sector despite broader venture market weakness.
That pace of capital formation has fueled aggressive hiring, rapid office expansion and significant real estate commitments from firms racing to establish market leadership.
Yet history suggests that periods of concentrated leasing activity tied to fast-growing technology sectors can introduce volatility as well as growth.
The late-1990s dot-com boom produced a similar wave of office expansion across San Francisco, Silicon Valley and portions of Manhattan before a sharp correction reset both technology valuations and office demand. More recently, flexible office operators and venture-backed startups played a major role in driving leasing momentum during the late 2010s cycle — activity that ultimately proved less durable than many landlords and investors anticipated.
Today’s AI ecosystem is arguably supported by stronger underlying technology and broader enterprise adoption. However, questions remain around long-term monetization, competitive durability and how many firms currently expanding will ultimately survive consolidation within the sector.
That uncertainty matters because office demand in several gateway markets is becoming increasingly dependent on continued AI investment momentum.
Research from CoworkingCafe shows that AI-related employment remains heavily concentrated in a relatively small number of innovation-driven metro areas including the Bay Area, Seattle, New York, Boston and Austin. Those same markets are also among the largest beneficiaries of recent office leasing growth.
As a result, office fundamentals in certain submarkets may now be more exposed to fluctuations in venture funding and AI hiring trends than traditional economic indicators alone.
There is also an emerging paradox embedded within the AI-office relationship itself.
Many AI firms are currently expanding office footprints because they prioritize engineering collaboration, speed of product development and access to highly specialized talent. At the same time, the technologies these firms are building are explicitly designed to improve efficiency and automate portions of knowledge-based work over the long term.
That creates uncertainty around whether today’s leasing growth represents a durable structural shift or simply a rapid expansion phase within an industry that may eventually become far more operationally efficient.
None of this suggests AI-driven office demand is insignificant or temporary. In fact, it is currently one of the few clear organic growth drivers within the office sector. Reuters recently reported that AI and technology demand has helped push Central London office leasing activity to decade highs, reinforcing that the trend extends well beyond the United States.
But it does suggest that office investors should be cautious about interpreting recent leasing momentum as evidence of a broad-based sector recovery.
The reality may be more nuanced: portions of the office market are recovering, but that recovery is increasingly concentrated around a narrow group of well-capitalized AI firms and the premium buildings capable of attracting them.
For landlords and investors, the next several years may ultimately determine whether AI becomes the foundation of a sustainable new office growth cycle — or simply the latest example of how concentrated technology booms can temporarily mask broader structural challenges within commercial real estate.
