Deputy Commissioner Craig Mackey said the Metropolitan Police was hoping to save around £6.5 million ($10.4 million, 8.1 million euros) per year by moving to a smaller base.
The Met moved into its New Scotland Yard offices in 1967. It bought the central London building for £124.5 million in 2008 but it costs £11 million per year to run.
As the force faces staff cuts, there will be more empty space at the site."It's an expensive building to run and it's an expensive building to maintain and as we go through this change programme it's going to have space in it that we don't need. In central London that's an expensive luxury."