NSW Labor leader Michael Daley will tear up the city's housing supply targets if elected, arguing western Sydney has been hit with "rampant" development while affluent areas have been spared.

The Opposition Leader says he would direct the Greater Sydney Commission to go back to the drawing board and revise the city's "unfair" housing supply targets if he becomes premier.

Labor leader Michael Daley wants "unfair" housing targets rewritten. Credit:Brook Mitchell

Mr Daley said the Coalition's so-called priority precincts "deliberately" disadvantaged western Sydney and favoured blue-ribbon suburbs, with "lenient development limits".

"The current housing supply targets have seen councils in Sydney’s west smothered by development while councils in the Premier’s backyard have not been allocated their fair share," Mr Daley said.