Crothers have started works for the major redevelopment at John XXIII College, the project is due for completion by December 2022. The works include the building of a new two storey administration block and substantial extensions and refurbishment works to other parts of the school – including additions to the library block and A block teaching rooms, mechanical upgrades to Roncalli Hall, refurbishment to the existing administration block and staff facilities and extensive car park and external works.