The ubosot of Wat Phra Borommathat Chedi-yaram houses a large number of bronze Buddha images from the Sukhothai and Ayutthaya periods. The principal chedi was constructed in 1357 by Maha Dhammaracha Lithai (fig.), the seventh King of Sukhothai, in order to house relics of the Buddha.

Initially, the main pagoda had a lotus bud finial, an architectural feature typical of the Sukhothai period, but was during the reign of King Rama V renovated by a Burmese log trader into the current Burmese style zedi, which is topped with a hti, i.e. an ornamental part in the form of a lacy umbrella.

In front of the stupa is a plaza with a large stone Buddhist Wheel of Law with 24 spokes, representing the hours of the day. It is surrounded by 24 pillars, each also topped with sandstone dhammachakka, smaller in size and each with 8 spokes, symbolizing the Eightfold Path of Buddhism.

The large Wheel of Law is flanked by two statues of deer, one on either side, referring to the Buddha's first discourse which was held at Mrigadava, a deer park in Sarnath. Of the two traditional wooden buildings, the one seen here on the right is the temple's Ancient Scripture Hall.