Cancer conwoman Belle Gibson's house in Melbourne's inner north has been raided and items seized in a bid to recoup an unpaid fine she received for falsely claiming she cured herself of brain cancer.

The sheriff's office executed a warrant on Gibson's Northcote home on Wednesday morning as the stand-off continued over her refusal to pay a fine of more than $500,000.

Belle Gibson at an earlier court hearing. Credit:Darrian Traynor

Gibson, 28, has refused to pay the penalty for building a wellness empire on the back of duping Australians into believing she cured brain cancer with healthy eating.

The Federal Court fined Gibson $410,000 in 2017 after Consumer Affairs Victoria took action against her. The fine has now grown to more than half a million dollars with costs and interest.