Mrs Markus will instead contest the neighbouring seat of Macquarie.

Created when the size of the parliament was increased in 1984, Greenway is named after the colonial architect Francis Greenway.

The re-drawn district of Greenway covers 84square kilometres in the north-west of Sydney, which is only 3per cent of the area covered by the old Greenway.

North of the M7 Greenway includes newer housing estates around Quakers Hill, Parklea, Stanhope Gardens, Glenwood and Kellyville Ridge. The boundary changes radically altered Greenway's political complexion which has seen the 4.5per cent Liberal margin from the 2007 election replaced by an estimated 5.7per cent Labor margin.

The 2006 census showed that Greenway had the second highest proportion of children under the age of five (8.2per cent).

Candidates

Michelle Rowland,

Australian Labor Party.

Born and raised locally, Ms Rowland is a senior lawyer with law firm Gilbert and Tobin in Sydney.

She lives in the electorate at Glenwood.

She was a director of the Western Sydney Area Health Service from 2000 to 2004 and is a former local councillor and deputy mayor of Blacktown.

Paul Taylor, Greens

The 24-year-old has lived in the Blacktown area most of his life and is now full-time carer for his disabled father.

Mr Taylor said his experiences with the public health system had driven his involvement in Greens campaigns for improvements to local public health facilities in Greenway.

Jayme Diaz, Liberal Party

Mr Diaz is a legal practitioner who is also involved in helping the community's young people, particularly those from a Filipino background.