The Biggest Firms Are Still Betting on London Offices
Here's What The Biggest Organisations Are Actually Betting On.
Two headlines. The same signal. BlackRock is weighing a move to 8 Canada Square, the Canary Wharf skyscraper HSBC will vacate next year, according to the Financial Times. The world's largest asset manager is hunting for at least 600,000 square feet of London office space, with a shortlist that also includes Bishops Square near Spitalfields Market and 75 London Wall, the former Deutsche Bank headquarters.
And separately: JP Morgan has agreed terms to build a 265-metre tower in Canary Wharf, set to be the tallest building in the district, spanning 3 million square feet at a cost of £3 billion. More than half of JP Morgan's 23,000 UK staff will work there.
Easy headline: capital is still flowing into London offices. True, but incomplete.
The harder read: these aren't just relocation stories. They're a statement about what kind of space wins in a market that has never been more divided.
The Market Is Splitting – Not Shrinking
London's overall office vacancy rate is sitting close to 10%, the highest in two decades. At the same time, prime rents in the West End have climbed beyond £150 per sq ft, and City Core prime rents are up 6.8% year-on-year, now exceeding £105 per sq ft. Grade A fitted space in core City locations is achieving up to £145 per sq ft.
Those two facts aren't in tension. They're the same story told from different angles.
Vacancy is rising because the middle of the market is hollowing out. The buildings tenants are leaving aren't the trophy assets. They're the ones that can't justify their rent on experience, quality, or operational performance. The buildings tenants are fighting over are the ones that can.
Canary Wharf tells this story most sharply. The Docklands Core vacancy rate hit 18.6% in early 2025, up from 3.5% in 2017. HSBC's departure created a rare 600,000-square-foot opening in one of Europe's most finance-dense districts. Yet BlackRock is still considering it — and JP Morgan isn't leaving the district, it's doubling down with a £3bn tower that had to be negotiated down to 265 metres to satisfy London City Airport's flight path requirements. The vacancy headlines and the investment headlines are about entirely different tiers of the same market.
What These Decisions Are Really Telling Us
The three assets on BlackRock's reported shortlist sit across different London submarkets: Canary Wharf, the City fringe at Spitalfields, and the established City core at London Wall. Different locations, different character, different commuter catchments.
The common thread isn't geography. It's scale and quality. Each can house a global headquarters-grade operation. Each represents the kind of physical environment that signals institutional seriousness to talent, clients, and counterparties.
JP Morgan's decision is even more declarative. A £3bn commitment to a purpose-built tower isn't a real estate transaction. It's a 30-year thesis on what a financial institution needs its headquarters to do. And the amenity stack JP Morgan is building in tells you exactly what that thesis looks like in practice: a 19-restaurant food court with desk delivery, a pub, a medical facility, and a dedicated fitness centre — all baked into the building's core design, not bolted on as afterthoughts. This is experience infrastructure conceived at the architectural level. The building isn't just somewhere to work. It's a platform designed to keep 12,000 people engaged, productive, and present every day.
This is what the flight to quality looks like at the very top of the market. Not the cheapest Grade A option. The building that can prove it performs.
The Buildings That Win Won't Just Be in the Right Postcode
Here's where the story gets interesting for landlords watching from the other side of the transaction.
BlackRock will occupy wherever it lands for a decade or more. JP Morgan's tower will define Canary Wharf's skyline for a generation. At that scale and tenure, the building isn't just real estate. It's infrastructure for talent retention, culture-building, and operational continuity.
The landlords competing for signatures like these know this. The ones making the strongest case won't simply be offering square footage. They'll be demonstrating that their building can deliver on the full promise of a world-class occupier experience: measurable service standards, operational transparency, digital infrastructure that connects the tenant to the building from day one, and the data to prove utilization, satisfaction, and performance over time.
The Experience Gap matters most at the top of the market, because the tenants who can see it most clearly are the ones with the most options.
London's office market isn't shrinking. It's undergoing a hard reset, separating the buildings that can perform from the ones that merely exist. The biggest players are still very much in the game. The question for every landlord in the mix is whether their asset can meet the moment.
At HqO, we believe the buildings that win the next wave of lettings will be the ones that can prove their space performs. Find out where yours stands. Request an Experience Assessment.