Housing advocacy group Everybody's Home says renting a unit now costs more than half the median take-home pay of a single worker in every Australian capital city.

Surging rental costs have been conscripted into the political fight over the nation’s property market, while new data shows there are areas where they have fallen 30 per cent.

Surging rental costs have been conscripted into the political fight over the nation’s property market, while new data shows there are areas where they have fallen 30 per cent.