Separate the building from the business case
In its 6 August 2026 anniversary release, Excel describes a 25,000 sq m expansion added to its existing 100,000 sq m, making 125,000 sq m in total. It says the new space hosted 30 major international events in its first year, totalling 500,000 sq m of rented new space.
Those figures measure different things. The added area is a physical footprint; rented space accumulates across bookings, so the same square metre counts again each time it is hired. Reading 500,000 sq m as the size of the extension would overstate the building twentyfold. Always check the unit, the period and the basis before repeating a venue statistic.
An economic estimate is not a booking outcome
The same release attributes an estimated £250 million to ten international congresses that brought 100,000 delegates, and says Excel contributes £4.6 billion a year to London’s economy. These are the venue’s figures, and the release does not set out the methodology behind them.
A benefit to the destination does not show the return to an individual organiser or exhibitor. An event can fill hotels and restaurants and still miss its own commercial objectives. Use destination impact to understand the wider proposition, not as a stand-in for your budget.
Figures move between releases
In August Excel said a further seven international congresses had been confirmed for 2027. Its 19 October release says the venue will have hosted 18 association congresses by the end of the expansion’s first two years: ten in 2026 and eight in 2027. The change may simply be a new booking, but it shows why any number in a board paper or bid should carry the date and the source it came from.
Ask what the extra space changes for you
For an organiser, the relevant question is how the expansion improves your programme. Does it let a plenary and an exhibition run side by side? Does it make registration or networking easier? Can a growing event stay in one building without compromising the attendee journey?
Get an allocation plan for the halls and rooms offered to you, with dates and access periods. A bigger venue does not guarantee that the most suitable space is free for your dates. Excel says Cisco Live will take exclusive use of the entire venue in early 2027, which is a reminder that availability, not size, is often the constraint.
Growth should solve a problem
More space can tempt an event to add content, stands or audience segments before the demand is there. Ask what problem each addition solves and how you will know it worked. Otherwise the extra floor area adds cost without adding value.
None of this makes venue expansion unimportant. It changes the questions to ask. Treat the announcement as evidence that the supply of space has changed, then build your own case from audience demand, programme needs and the full delivered cost. Our report on Excel’s October figures and the Excel London profile have more detail.
Sources
- Excel London: One year on, expansion anniversary release, 6 August 2026
- Excel London: 60% growth in USA-based events, 19 October 2026
Sources re-read on 19 October 2026. Performance figures remain attributed to the venue; the buying questions are Events Review’s desk analysis.
