Phra Add Vihara is named after the Buddha image enshrined within it, known by various names such as Phra Kaccāyana, Phra Sangkajjai, or Phra Saphathera, but commonly referred to by locals as Phra Add . Thus, the vihara housing this Buddha image is called Phra Add Vihara.
The vihara is located just north of Sam Chom Vihara. Originally, Phra Aet Vihara was situated outside the cloister near Dhammasatsala Vihara. Later, during the abbotship of Phra Rattanathajamuni (Khun Thaphonthera – Ban – Pariyan) at Wat Phra Mahathat, the image of Phra Aet was restored, and a new vihara was constructed to house it.
The project was directed by the assistant abbot, Phra Khru Phutthisanchatiyaphiwat, also known as Phra Phutthisanthera (Phut Suwatthano). After the completion of the construction, Phra Add was ceremoniously enshrined in the newly built vihara, where the image remains to this day.
