Council chiefs have agreed to spend £5.27m on plans to expand Leeds West Academy for an extra 300 pupils.
The proposals for new classrooms and extended dining facilities at the Rodley site were granted planning permission in June, as first reported by WLD.
The works are due to be completed for the start of the next academic year in September 2022.
A council report approving the decision to spend £5.27 million says the expansion will allow more children to obtain a place at their preferred secondary school and ensure Leeds City Council meets its statutory duty in providing every child with a school place
The three extensions will be at the rear and side of the existing school building, off Intake Lane.
They will include a new science lab, six new classrooms, a new office/staff work room, a store room, a dining hall extension and a satellite servery to provide seating for an additional 300 pupils between years seven to 11.
There will also be 19 new shower cubicles in the existing male and female changing area.
The work will be carried out by White Rose Academies and supervised by Leeds City Council.
The council report can be read in full here.