Offshore buyers are snapping up the equivalent of a quarter of new property supply in NSW and accounting for nearly a fifth of purchases in Victoria, according to a freedom of information request.

And it's Chinese buyers leading the charge.

Analysts at Credit Suisse conducted the FOI of state revenue offices in NSW, Victoria and Queensland, which revealed foreign buyer appetite for east coast property is far from satiated.

Crunching the FOI data, the analysts found foreigners are buying the equivalent of 26 per cent of the value of new housing supply in NSW, 17 per cent in Victoria and 8 per cent in Queensland.