Students and teachers at La Mare de Carteret will find out today if their school will undergo redevelopment.
Guernsey States have been debating the proposed £60m rebuild and should decide today if they think the project is value for money.
As the States began their debate yesterday more than 400 letters from pupils at the school were handed to the politicians to urge them to give the redevelopment the go-ahead.
The new plans include a club-level competition indoor sports hall and a new centre for autism support service on the island, along with the new school facilities.
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Locate Guernsey, which aims to promote the island as a place to live and work, helped with the relocations.
Everyone doing work for the States of Jersey will be paid the living wage in the future, if politicians approve plans this week.
Mainly cloudy with a little rain at times, and a risk of hill fog patches, clearing by midday with sunny periods developing.