According to the Dartmoor Multi-academy Trust, the Promise School opened officially in September 2022, with students moved into the “custom-built site in the centre of Okehampton” from the start of the 2023/24 academic year.
The trust said the school provided specialist support for about 100 children aged four to 16.
James Grainger, Devon county councillor for Okehampton Rural, said people should take care if travelling on the nearby A30, as smoke could drift across the road if the wind changed direction.
The Reform councillor added: “Thank you to our fire crews and emergency services for their swift response, and to the community for their patience while the situation is being managed.”
Firefighters said they had received support from the local community including from takeaway restaurants who had provided crews with food overnight.