London Office Movement Briefing · Week 38, 2026 · 2026-09-14
London office movement briefing: 678 in-market, 408 lease events
The week's public-record signals on London companies heading for a move, fit-out or refurbishment: the numbers, where the activity is concentrated, and what's surfaced in the press.
The numbers
The in-market total for September 2026 stands at 678 companies, unchanged from August's 678. Within that, the more advanced signals category has ticked up slightly, from 31 to 32.
Lease events recorded this period: 408.
What it means: the overall pool of London occupiers showing move, fit-out or refurbishment signals has held flat month on month, but the small rise in advanced-stage signals suggests a modest firming of intent among a subset of that pool. With 408 lease events logged alongside a static total, churn within the market looks steady rather than expanding — companies are moving through the process without a corresponding surge in new entrants.
Where the movement is
Geographically, the City & fringe (EC) remains the dominant submarket by a wide margin, with 235 in-market companies, more than the next two areas combined. The West End (W) follows with 159, then Midtown (WC) on 76, Southbank/SE on 67, and the Southwest (SW) on 50.
By sector, Finance & insurance leads with 143 in-market companies, ahead of Tech & software on 101 and Legal & consulting on 94. Professional & creative accounts for 75, and Media & publishing a further 47.
Taken together, the pattern points to core central London — EC and W postcodes — and the finance, tech and legal sectors as the areas where fit-out, refurbishment and relocation activity is most concentrated this month.
In the press this week
Delancey has secured a pre-let with Polymax at Proxima Park, according to Property Week.
Retrofit plans have been submitted for the HSBC tower at Canary Wharf, reported by Construction News.
One Golden Lane has launched to market with 120,000 sq ft of office space, according to facilitiesmanagement-now.com.
An AI infrastructure company has connected to Mainframe with an office lease, according to CoStar.
Kajima has secured approval for a 31,000 sq ft Soho office retrofit, per Green Street News.
A law firm has expanded its London base amid growth, according to Bdaily.
Put this data to work
Every figure above comes from the live Signal dataset — the same one that powers the London Office Movement Index. If your business wins work when companies move, see the leads behind the numbers: office fit-out, relocation services, facilities management and more.