Gladys Berejiklian becomes 45th premier of NSW

Gladys Berejiklian will be appointed as premier of NSW following a leadership vote in the state's Liberal party room.

Berejiklian will become the 45th premier of the state when she is sworn in on Monday afternoon.

She was elected unopposed, becoming the first female Liberal premier in the state.

Gladys Berejiklian will become the first female Liberal Premier of NSW. Source: AAP

Berejiklian will take over the reins from Mike Baird who announced his sudden resignation last week. Source: AAP

Berejiklian enters the Premier State's top job following the sudden resignation of Mike Baird, who announced he would step down last week due to family reasons.

The outgoing treasurer was elected unanimously after formally nominating for the position at a party room meeting at NSW Parliament on Monday morning.

Finance Minister Dominic Perrottet was elected as deputy leader of the Liberal party, the party whip Chris Patterson told a large media scrum outside the meeting.

Berejiklian will become the second woman to lead NSW. Source: AAP

Ms Berejiklian, a moderate who hails from the left of the party, was the only person to put her hand up to take over the top job after Mike Baird made his shock retirement announcement last week.

She will become the second woman to hold the premier's office when she is sworn in at a ceremony later in the day.

Elected to the seat of Willoughby on Sydney's lower north shore in 2003, the current Treasurer and Minister for Industrial Relations has risen steadily through the political ranks in her 14-year career.