The seemingly inexorable rise in house prices has been the subject of political debate for decades, with many blaming Australia's tax rules for favouring investors at the expense of first home buyers.

In a July 30 tweet, Greens leader Adam Bandt claimed house prices are rising by $1,200 a day, warning that younger workers have been locked out.

"House prices are going up $1200 a day," Mr Bandt said. "Great for property investors, a disaster for every casual worker with smashed savings."

Is it correct that house prices are rising by $1,200 a day? RMIT ABC Fact Check investigates.

Verdict: Mr Bandt's claim is overreach.