Stittsville's newest high school is set open in 2021.
Carleton MPP Goldie Ghamari says she has received the official notice from Ontario's education minister.
In January, the education ministry approved just over $37 million for the Ottawa-Carleton School Board to build a new school in Stittsville.
The public high school will include space for over 1,300 students.
Construction is expected to begin in the fall of 2019.