Have you noticed that there is a new measure in town - the Gherkin.
Here are two recent examples.
In the story about CEBR's estimate of 6,200 job losses in the City one gherkin equates to just over 3,000 City jobs.
In the story about the estimate by Drivers Jonas that there will be a tidal wave of excess office space in City one Gherkin equates to just shy of 1% of the total available office space in the City.
Who needs a pole, perch, rod or acre when you have the Gherkin. Let me know if you spot any other examples.