Except for an anteroom here and there, the buildings of the Grand Palace (Phra Borom Maharatchawong) are now put to use by the king only for certain ceremonial occasions, such as Coronation Day.
Read more: http://www.lonelyplanet.com/thailand/bangkok/sights/religious/wat-phra-kaew-grand-palace#ixzz3pqXGg2vH