The framing of the central window of Haghardzin s vestry is cross-shaped. Placed right above the portal of the main entrance, it emphasizes the central part of the facade. The refectory of Haghardzin, built by the architect Minas in 1248, is a structure of a rare composition. Just as Haghpat's refectory, the structure is divided by pillars into two square-plan parts roofed with a system of intersecting arches. The walls are lined with stone benches, and at the western butt wall, next to the door, there is a broad archway for the numerous pilgrims to get in and out.
Decoration is concentrated only in the central sections of the roofing.
The transition from the rectangle of their base to the octagon of the top is decorated with tre- and quatrefoils of various sizes creating a rich play of light and shade. The low abutments determine the size of the upstretched arches. The proportionally diminishing architectural shapes create the impression of airiness and space. Of interest is the ornamental carving of a thirteenth-century khachkar placed next to the southern door of St. Astvatsatsin church in Haghardzin. The khachkars created by the carver Pavgos in Goshavank stand out among the rest.