London is set to become the permanent home of OpenAI’s largest international outpost, after the ChatGPT developer confirmed it has secured a major new office space in the King’s Cross area — with the site expected to open in 2027 and capacity for more than 500 staff.
The announcement cements London’s growing status as the global capital of artificial intelligence research outside the United States, and adds another landmark name to one of the city’s most rapidly transforming neighbourhoods. For Londoners watching the capital’s tech scene evolve, this is a significant moment — though it comes against a complicated backdrop that tells a more nuanced story about the UK’s AI ambitions.
The New London Office: What We Know
OpenAI has confirmed it has secured an 88,500 square foot space at Regent Quarter, a development spanning Jahn Court at 34 York Way and the Brassworks Building in the King’s Cross area of North London. The office is designed to accommodate up to 544 team members, more than doubling OpenAI’s current London workforce of approximately 200 people.
The space is owned by Endurance Land, one of London’s active commercial property developers, and sits within walking distance of King’s Cross St Pancras — one of the best-connected transport hubs in the entire country, with direct access to the Underground, the Elizabeth line, Thameslink, Eurostar, and East Midlands Railway services. For a company looking to attract research talent from across London, the UK, and Europe, the location could hardly be better chosen.
The office is expected to open in 2027, with OpenAI gradually scaling up its London headcount in the lead-up to that opening. The company currently employs around 200 people across the capital, working across research, engineering, customer support, policy and sales. Around 30 of those are dedicated researchers — a number that is expected to grow considerably as the new space comes online.
King’s Cross: London’s AI Neighbourhood
OpenAI’s choice of King’s Cross is no accident. The area has quietly become one of the most important technology clusters in the world — and according to property analysts at JLL, it ranks as the third most productive technology cluster on the planet, behind only San Francisco’s Bay Area and Beijing.
That is a remarkable designation for a corner of North London that until relatively recently was better known for its Victorian railway terminus than its role in cutting-edge research. The transformation of the King’s Cross area over the past decade, driven by a major mixed-use redevelopment, has attracted a concentration of institutions that is genuinely world-class.
OpenAI’s new neighbours in the King’s Cross corridor will include:
- Google DeepMind — one of the world’s leading AI research laboratories
- Meta — the parent company of Facebook, Instagram and WhatsApp
- University College London (UCL) — one of the UK’s top-ranked universities, with significant AI and computer science research programmes
- The Francis Crick Institute — Europe’s largest biomedical research building, located directly beside St Pancras station
- The Alan Turing Institute — the UK’s national institute for data science and AI, based at the British Library
- Synthesia — the London-founded AI video generation company
- Wayve — the London-based autonomous driving AI startup
This concentration of research talent, commercial AI development, and world-class academic institutions in a single London postcode gives the King’s Cross area a genuine claim to being one of the most important places in global AI right now. OpenAI’s decision to plant its permanent flag here — rather than in Canary Wharf, the City, or Soho — is a clear signal of where the company sees the heart of London’s AI future.
OpenAI’s Journey to a Permanent London Home
OpenAI’s path to this permanent London address has been gradual. The company first announced its intention to open a London office in June 2023, describing the city as a location with a “vibrant technology ecosystem and exceptional talent pool.” It initially settled into flexible office space at Fora’s York House at 221 Pentonville Road in King’s Cross — a temporary base while the company searched for something more permanent.
Over the following years, OpenAI explored a range of central London locations, including spaces in the City, Wardour Street in Soho, and Angel in Islington, before settling on the Regent Quarter development. Its UK headcount grew substantially during this period — from around 20 people in 2023 to approximately 200 today — making the move to a purpose-built, larger-capacity space both necessary and overdue.
The new 88,500 sq ft office at Regent Quarter represents OpenAI’s commitment to London not as a satellite outpost, but as a genuine second headquarters for the company’s global research operations.
The Bigger Picture: London’s AI Boom
OpenAI is far from alone in betting on London as a base for AI expansion. The capital has become the destination of choice for the world’s leading AI companies looking to establish a European or international presence.
Anthropic — OpenAI’s closest rival in the large language model space — is understood to be in active discussions with both the Mayor of London and the UK government about growing its own London presence. Like OpenAI, Anthropic currently employs around 200 people in the city.
The concentration of talent, research institutions, and commercial AI activity in London is driving a commercial property boom of its own. According to research by Savills, AI companies have been expanding their London office footprints at rates of up to ten times their existing floorspace as they compete to hire the best researchers and engineers the city can offer.
For London’s economy, this is unambiguously positive news. High-skilled, high-wage jobs in AI research and engineering have a significant multiplier effect on the wider local economy — supporting everything from restaurants and housing to professional services and infrastructure.
The Complication: Stargate UK on Pause
The permanent London office announcement comes at a complicated moment for OpenAI’s broader UK ambitions — and for the UK government’s strategy of positioning Britain as a global AI superpower.
Just days before the London office news, OpenAI confirmed it is pausing its Stargate UK data centre project, a major infrastructure initiative announced in September 2025 in partnership with Nvidia and Nscale. The project was intended to deploy thousands of AI processors at sites across the UK, including a facility at Cobalt Park in North Tyneside, as part of a wider £31 billion tech investment package linked to the UK government’s AI Opportunities Action Plan.
OpenAI cited two reasons for the pause: the high cost of industrial energy in the UK — where electricity prices for large-scale industrial users remain among the highest in Europe — and an uncertain regulatory environment around issues including AI copyright rules, which have been the subject of significant public and creative industry debate in Britain.
The Stargate UK project had been announced with considerable fanfare during a US Presidential state visit to Britain, and was positioned by Prime Minister Starmer’s government as evidence that the UK could attract transformative AI infrastructure investment. The pause is a setback for that narrative — though OpenAI has been careful to describe the decision as a hold rather than a cancellation, saying it will move forward “when the right conditions such as regulation and the cost of energy enable long-term infrastructure investment.”
What this means in practice is that the distinction between OpenAI’s London office plans and its UK infrastructure plans is now sharply drawn. The London office — focused on people, research and talent — is proceeding on schedule. The data centre project — focused on physical computing infrastructure — is on hold indefinitely.
What the London Office Means in Practice
For the roughly 200 people already working for OpenAI in London, the new King’s Cross office will represent a significant upgrade in both space and permanence. The current flexible office arrangement was always intended as a temporary measure; the Regent Quarter space gives the London team a proper home that can grow with the organisation.
For Londoners interested in working in AI, the expansion represents a meaningful increase in job opportunities at one of the world’s most prominent AI companies. OpenAI has indicated it intends to hire across research, engineering, policy, and commercial functions as it scales toward the 544-person capacity of the new building.
The UK government has also sought to reinforce London’s credentials as an AI research centre, announcing £40 million in funding over six years for new fundamental AI research — a relatively modest sum compared to the scale of private investment flowing into the sector, but a signal of continued public commitment.
King’s Cross as London’s AI Address: A Neighbourhood Worth Watching
For anyone who visits or lives near King’s Cross, the transformation of the area is visible and ongoing. What was once a gritty gateway to the north has become one of the most desirable commercial addresses in Europe — and the arrival of OpenAI’s permanent office in 2027 will add another chapter to that story.
The neighbourhood’s appeal to AI companies comes down to a combination of factors that are hard to replicate elsewhere in London. The proximity to UCL, the Alan Turing Institute, and the Francis Crick Institute creates a pipeline of research talent. The presence of Google DeepMind and Meta means that networks, ideas and people circulate in ways that benefit the whole cluster. And the transport connections — King’s Cross St Pancras serves more Underground lines than almost any other station in London and connects directly to Paris and Brussels via Eurostar — make it genuinely easy to get to from anywhere.
For London as a city, the continued growth of this AI cluster is one of the more quietly consequential stories of the decade. The decisions being made in buildings around King’s Cross right now will shape how artificial intelligence develops, and where that development happens. OpenAI’s commitment to making London a permanent part of that story is worth taking seriously.
Key Facts: OpenAI’s London Office at a Glance
| Detail | Information |
|---|---|
| Location | Regent Quarter, King’s Cross, London N1 |
| Buildings | Jahn Court (34 York Way) and Brassworks Building |
| Size | 88,500 square feet |
| Capacity | Up to 544 team members |
| Expected opening | 2027 |
| Current London headcount | Approximately 200 employees |
| Functions in London | Research, engineering, customer support, policy, sales |
| Nearest stations | King’s Cross St Pancras (Underground, Eurostar, Thameslink, National Rail) |
What Happens Next
OpenAI has not yet confirmed a specific opening date within 2027 for the Regent Quarter office. The company is expected to continue operating from its existing flexible space in King’s Cross while fit-out work on the new building is completed.
On the Stargate UK question, the situation remains fluid. The UK government has indicated it intends to continue working with OpenAI on the conditions needed to make large-scale AI infrastructure investment viable in Britain — though resolving the underlying issues around energy costs and regulatory clarity is likely to take time.
For now, London has something concrete: a confirmed, permanent OpenAI office in one of the world’s great technology neighbourhoods, opening in 2027. For a city that has worked hard to establish itself as Europe’s leading AI hub, that matters.
All information in this article is based on confirmed announcements from OpenAI and verified reporting from multiple sources as of 13 April 2026. For the latest updates on OpenAI’s UK operations, visit openai.com.
