Judging by its appearance, the building was constructed during the late classicism period, likely in the 1830s-40s. It is a small domed rotunda with a two-column Tuscan portico at the entrance, featuring a sculptural octagonal dome finish 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 Market Square, closely adjacent 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 that separates the roadway from the residential buildings. This is canonically permissible for chapels, and the cross crowning the building should face the entrance, regardless of its orientation to the cardinal directions.

Likely in the late 19th century, the Friday chapel received a brick fence in the form of pillars on a plinth with metal links and gates in front of the entrance. The project includes its restoration.

Due to a shortage of quality red bricks, the Friday chapel will have to be built from silicate bricks, except for the plinth parts and the building and fence themselves, which must be made of red bricks. A complex mortar should 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 mauerlat and converging at the apex of the vault. The sculptural finish of the dome will also be made of wood, which should be painted white, like 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 guarantee of the coating's preservation 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 plinth of the fence. Horizontal lintels for the windows and doors will be made of wooden plates, 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. The same style can be used for the external stairs and the floor of the platform under the portico. 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.