It will offer enrolment relief for Kelvin Grove State College, which already has more than 3000 students and Brisbane State High School with more than 3100 students.

By 2025, the Inner City North State Secondary College will have 1500 students in Years 7 to 12 in a contemporary model described as Brisbane’s first vertical high school.

The catchment for the new high school extends north and eastwards over Crosby Park and Allan Border Field towards Hamilton along Kingsford Smith Drive.

In the north-west it extends towards Downey Park and includes Northey Street and streets immediately to the north.

In the centre and south of the catchment are inner-city households from houses and apartments in Teneriffe, Fortitude Valley, Spring Hill, Bowen Hills, Newstead, New Farm and Brisbane City.

Education Minister Grace Grace released the catchment boundaries in State Parliament on Tuesday.

She said construction was well underway.

The existing Brookes Street building being modified as part of the new high school campus and the junior learning building on St Paul’s Terrace will form most of the new high school when it opens in January 2020.

“With the crane now onsite, the vertical buildings to be delivered during 2020 are already out of the ground and progressing well,” Ms Grace said.

“The existing Brookes Street building is also undergoing a transformation ready for the opening in January 2020.”

The new high school project is part of the Queensland government’s $808 million Building Future Schools Fund.

The Inner City North State Secondary College is the sister inner-city high school campus to the new high school to be built at Dutton Park.

The new location for that new high school, opposite the Dutton Park Cemetery, was announced on April 1.

The idea of schools re-using inner-city buildings as schools was explored by Brisbane Times in 2017 when a similar schools model was put in place in Melbourne.

ICNSSC principal Sharon Barker said several hundred families had already expressed interest in enrolling their children at the school.

“During the consultation period, the Department of Education called for preliminary expressions of interest for enrolments and has had more than 250 initial expressions of interest,” Ms Barker said.

“Now that the catchment has been finalised, all eligible families, including those that submitted a preliminary expression of interest, are now encouraged to apply to enrol at our school.”

The school will open to Year 7 students in 2020 and “grow year by year” until 2025 when it Year 12s will be students at the school.

Some course-work will be loosely linked to Queensland University of Technology, while the new high school at Dutton Park is meant to be loosely linked to coursework offered by the University of Queensland.

Those relationships are still being developed, while the physical construction of both inner-city high schools gets underway.

The new high school will open in two stages.

The Brookes Street Precinct open for Year 7 in Term 1, 2020 and the area on St Paul’s Terrace will be completed during 2020.

Meanwhile Education Queensland is now negotiating with school principals on new recommendations to control mobile phones at schools as part of the Queensland govermment's anti cyber-bullying campaign.

It will remain up to individual schools and parents and citizens associations to control mobile phone use at individual schools, Premier Annastacia Palaszczuk told Parliament.

She said the new mobile phone use guidelines, to be released at the end of semester one, will be recommendations only, she said.