The ubosot (ordination hall) housing the Emerald Buddha is actually the only original building in the Wat Phra Kaew. It was built at the same time as the temple in 1783 to 1785. Like most of the buildings in the compound, the ubosot's exterior is finished in colored mirror tiles and gilt carving. The eaves are lined with bronze bells which tinkle is the slightest breeze.
Entry to the chapel is on the east side. The doors are inlaid with mother-of-pearl designs from the Ramakian, the same epic which illustrates the gallery. Inside, the Emerald Buddha sits high up on a gilt alter. The image, which was carved from a solid piece of green jadite, not emerald, is 66 centimeters (26 inches) tall and about 48 centimeters (19 inches) across at the lap. The image has three golden 'costumes' which are changed with the seasons by His Majesty the King or one of his children.
On either side of the high alter are screens which create a private area for the royal family when visiting the temple in Bangkok. In front of the Emerald Buddha are several other Buddha images placed there by the kings of the dynasty. The two lowest images were placed there by the present king. One in 1987 on his sixtieth birthday, and the other in 1988 when he became the longest reigning Thai monarch.