The Kazan church with a refectory was built and consecrated in 1678. Later, the refectory was divided into three parts, and in the southernmost part, a second church dedicated to Gregory of Akragant was established, resulting in a second dome above the refectory.

Today, the composition of the Kazan church includes the main body of the church, the refectory, and the chapel. The main body is covered with a box vault with end pilasters and topped with a dome. The three-apsidal altar and the refectory are half the height of the main body. The vaults of the refectory are cross-vaulted and rest on a central column. Entrance to the refectory is through a porch and a reconstructed gallery from the north side. The church stands on a basement, with a similar ceiling under the refectory, while in other areas, there are box vaults. The facade decoration is modest: pilaster strips are connected to the shape of the structural elements and separate functionally different rooms. The main body is topped with a cornice of zakomar, and the entire structure has a cornice made of three rows of bricks with an overhang. The base is decorated with a curb. The windows of the church, apse, and basement are semicircular and without trim, while in the refectory and chapel, they have decorative trim. The western wall is reinforced with buttresses.