Overseas buyers poured £2.2bn into new-build London homes last year, research from Knight Frank shows.

The figure increased from £1.8bn the previous year. The biggest buyers were those from Singapore with a 23% share, followed by Hong Kong with a 16% share. British buyers accounted for 27% of deals last year, similar to 2011. The number of other nationalities buying off-plan increased from 43 to 52.