Judging by its appearance, the building was constructed in the late classical period, probably in the 1830s-1840s. It is a small domed rotunda with a two-column Tuscan portico at the entrance, featuring a sculptural octagonal dome and an eight-pointed cross on a large sphere. The facades of the building were plastered and painted with lime. The chapel was located at the edge of the Hay Square, close to the line of houses in the neighboring block, with the entrance facing the square, where the street now runs. For convenience, the building's axis was turned 90°, making the entrance from the side of the lawn separating the roadway from the residential area. This is canonically permissible for chapels, and the cross crowning the building should face the entrance, regardless of the orientation to the cardinal points.

It is likely that in the late 19th century, the Friday chapel received a brick fence in the form of pillars on a base with metal links and gates in front of the entrance. The project provides for its restoration.

Due to the lack of quality red bricks, the Friday chapel will have to be built from silicate bricks, except for the base parts and the building itself and the fence, which must be made of red bricks. A complex mortar must be used for both masonry and plastering. To achieve accuracy in the profiles of the cornices on the facades and the capitals of the columns and pilasters, it is proposed to cast them in concrete molds and install them along with the masonry. The internal cornice at the base of the dome will be traditionally stretched according to a template.

To lighten the walls and reduce construction costs, the church dome is designed to be wooden, in the form of curved cranes resting on a ring beam and converging at the apex of the vault. The sculptural finish of the dome will also be made of wood and should be painted white, as well as the walls of the building. The crowning cross, the apple beneath it, and the cone below are proposed to be made of sheet steel with a titanium nitride coating that simulates gilding, with a warranty for the preservation of the coating for at least 50 years. The dome's roofing will be made of black iron, painted green. The same applies to the covering of the pediment, columns, and the base of the fence. Horizontal lintels for the windows and doors will be made of wooden slabs, above which the so-called 'Nizhny Novgorod lintel' will be arranged.

Since the chapel is to be heated, paired window frames are provided. The windows will be equipped with metal grilles and internal folding iron shutters. Double-leaf iron shutters will be installed in front of the doors. The floors inside the building will be mosaic, with a frieze ring around the perimeter, in two tones: light gray and red. External stairs and the floor of the platform under the portico can be made in the same style. The foundations of the chapel and the fence will be made on bored reinforced concrete piles with a reinforced concrete grillage. A mandatory condition is the regular presence of the project author on site and constant architectural supervision.