Ak Saray was originally designed as a new office for the Prime Minister. However, upon assuming the presidency, Erdoğan announced that the palace would become the new Presidential Palace, while the Çankaya Mansion will be used by the Prime Minister instead. The move was seen as a historic change since the Çankaya Mansion had been used as the iconic office of the presidency ever since its inception. The Ak Saray has almost 1,000 rooms and cost $350 million (€270 million), leading to huge criticism at a time when mining accidents and workers' rights had been dominating the agenda.