The Shard's 575,000 square feet of office space is officially unlet, with 22,000 square feet rumoured to be close to signing.
What some might not know is that it did once have a pre-let. Back in 2006, Transport for London (TfL) signed up for 190,000 sq ft, agreeing to pay around £40 per square foot for the tower south of the river, at London Bridge station.
But by 2010, Mr Sellar and his team decided it could achieve a better rent and a better class of tenant and parted company with TfL.
If it can sign up tenants during the next year or so at around £55 or £60 per square foot it stands to be more than £3m better off than if it had stuck with TfL.
The Independent: Does anyone want to move into the Shard? http://www.independent.co.uk/news/business/analysis-and-features/does-anyone-want-to-move-into-the-shard-7799803.html