Inner Sydney will have a high-rise public high school within five years after the state government agreed to relocate the city's language school from its prime spot near Central Station and rebuild a much-needed new school for the city.

NSW Education Minister Adrian Piccoli will on Monday announce that the Cleveland Street Intensive English High School will be moved to make way for a new high school, ending a long campaign from parents.

Education Minister Adrian Piccoli was "not in a position" to meet ethics providers. Credit:Louie Douvis

The $60 million new school will open in 2020, but like the high-rise high school promised for Parramatta last week, it will be dependent on the government's proposed sale of the state's electricity poles and wires.

Mr Piccoli has also pledged to spend $100 million replacing the ageing and overcrowded Arthur Phillip High School and adjacent Parramatta Public School with high-rise buildings if the government is given a mandate to privatise NSW's electricity assets.