Kato Kagaku International Ltd owns the lease on Bush House. The company started manufacturing malt syrup in 1945, then corn syrup in 1959. Cornflour and animal feed came later. They have a range of food products branded "Ichi Fuji", and their company motto is "In Pursuit of a Wonderful World". In the 1980s, they moved into property as a hedge against international currency movements.
First into the fold was Tower 49 in New York, designed by Skidmore Owings & Merrill. Its blue/glass cladding and shape hides the fact that it has a tricky footprint at the base, with a nearby Swedish church to wrap round. Kato paid some $301m in 1987.
Then came the Hyatt Regency in Chicago, bought in 1988 for an estimated $260m. Last year some $90 million was spent on renovations. It's a hotel monster, with 2,019 rooms and suites making it the "biggest in the Midwest".
The head lease on Bush House was acquired in 1989. The building was conceived as a trade centre in 1919, funded by a collection of US investors. Completed in 1925, it was dubbed the most expensive building in the world at the time, with the external Portland stone and internal marble bringing the construction cost to some £2m. The motto above the entrance - "Dedicated to the friendship of English-speaking peoples" - was nothing to do with broadcasting, but a pious expression of hope for Ango-US relations.
The BBC moved in during 1940, after a parachute mine had damaged the third and fourth floor of Broadcasting House along Portland Place. The European Service moved into the South East wing, and the rest of the Overseas Service (as it then was) followed in 1958.
Kato has been kind to Bush, negotiating a series of lease extensions as Broadcasting House building works ran late. But the BBC has been contracting inside Bush over the last four years, surrendering space in the North West wing in 2008, and the block is now serviced offices. Melbourne House was left by BBC in 2010. The annual rent on the space left this year - Centre Block, North East Wing and South West Wing - was £8m.
There are already other tenants: HMRC departments have been in Bush for a while. The LSE may be eyeing up parts of it, but somebody will need to spend quite a bit before Bush can be attractive and full again.