Super-prime new-build sales plummet

86% fall in £10m+ transactions recorded by the Land Registry

If the government were looking to boost Treasury coffers from the change to stamp duty, it looks as if they'll be sorely mistaken.

After a 40% surge in the last year alone, a total of 35,000 prime homes are now due to be built in the capital over the next decade, with a combined floor area the size of the City of London and a…