Cwmcarn High School is to reopen, after Caerphilly councillors agreed a plan to remove asbestos at the site and provide temporary classrooms.
The decision was made at a meeting on Wednesday night, which was also attended by a large number of parents of pupils at the school.
Since the discovery of asbestos at the school last October, the pupils have been educated at the former Coleg Gwent site in Ebbw Vale.
More top news
Mostly dry tonight. Warm sunny spells tomorrow, with isolated thunderstorms.
The RNLI has warned of the dangers of going into cold water after a teenager was dragged unconscious from the sea by a friend.
Real Madrid won another Champions League title, beating a shell-shocked Liverpool side 3-1 in Kiev.