With a history reaching back to the late 16th century, the St. Michael’s House acquired its present appearance in the final years of the 18th century with modifications during the first half of the 19th. It is the first building in a row of similar ones copying the outline of the former garden wall of the Capuchin monastery in the Hradčany district of Prague, behind Prague Castle. Along with the other small houses and the opposite wall, it forms the picturesque lane of Nový Svět.

Two stories high, facing north, the building has a trapezoidal plan opening towards the west. The façade facing the street Nový Svět has one storey, seven axes of symmetry with the main entrance at the centre. The horizontal façade is split by a flat running cornice above the ground floor and a protruding cornice above. The façade facing the street Kapucínská has a single axis, with a rectangular entranceway at the level of the 1st floor, with several protruding stone steps leading to it. Continuing onto this façade are the horizontal elements (the running and the main cornice) from the Nový Svět façade. The peak of the roof is articulated by four dormers with low square windows.

The original layout was organised around the vertical axis of communication, and was similar for both floors. The upper floor had two rooms on the east and the west; the lower floor had (in parallel to the upper one) two rooms on the north side, on the east began the vaulted cellar areas reached through the street door and continuing through two paired smaller rooms. From its first construction, the building was used as a residence; historically, its poor technical condition was regularly noted.

Following reconstruction, the house has been newly divided into two flats with net floor areas of 50.5 and 54.5 m2 each independently occupying one floor. The new layout of the ground floor is based on the original plan. Entrance is from the centre, and is formed by a small entrance hall, with toilet and other facilities. In the eastern section is a living room with adjoining bath; in the west is the kitchen and bedroom. Compared to the original state, the floor has been lowered, to achieve a better height level. Equally, the ceiling has been raised to the level of the stone surrounding of the entrance door. The spaces of the kitchen and living room are illuminated from the south through a kind of English courtyard, integrated into the landscaping modifications at the foot of the garden wall. For the upper floor, the entrance has been shifted to the eastern area, using the second entrance opening of the building. Through locating the entrance at the beginning, we created a fluid continuum of spaces from the east to the west – from the entrance hall with the necessary facilities, through the living room, kitchenette and bath into the bedroom. Considering the low level of height, the area has partially been opened into the roof space and uses the dormer windows for illumination.

For reconstruction of the masonry structures of the building, traditional materials were used and technologies with a lime base. Partially, the house was given a new masonry foundation under the walls so that it would lie in a non-freezing ground. In the ground floor, a new insulated floor was laid. The beamed wooden ceiling above the ground floor was situated in its original place, using the original structural openings. The construction of the roof framework is also original, with only small local repairs. The original roof tiles were completely replaced with new ones. The façade was partially treated with new stucco, and painted with limewash of a grey tint. The Classicist entrance doors in the northern façade have been restored, and the windows are newly manufactured copies of the original ones.