In June 2018 it was revealed that more staff would be leaving the channel than moving to work in Carmarthen. S4C started relocating to the new building from September 2018 and 54 jobs moved to the new HQ. An office in Cardiff was retained for technical purposes until full change over to the new BBC Wales Headquarters with 70 staff there. A significant percentage of the technical posts will transfer to the BBC. In September 2018, S4C committed to ten years of lease on its Caernarfon office, which has 12 full-time staff.