Property giant Mirvac has pulled out of the redevelopment of the Showground station precinct in Sydney's north west, little more than a month after the NSW government settled a dispute with the council over minimum apartment sizes and rezoned the area for 5000 homes.

Mirvac confirmed on Tuesday it would not proceed with its development plans for the Showgrounds precinct, citing changes to the planning controls in updated plans announced by the NSW government in December.

The proposed Showground Station redevelopment precinct.

"Mirvac entered into options for land in the Showground precinct of the Hills Shire – unfortunately the final planning controls were different from the original plans, and as such Mirvac were unable to proceed with the proposed development," Toby Long, Mirvac's general manager of residential development NSW, said in a statement.

It is understood the requirement of larger minimum lot sizes for apartments – a change from the Department of Planning's original rezoning proposal released in 2015 – were among the reasons for Mirvac's decision.