House number 13 on Pyatnitskaya Street is the main building of the estate, based on chambers from the late 17th and early 18th centuries, reconstructed in the first half of the 19th century.

On the map of Moscow from 1766, a courtyard and garden belonging to the first guild merchant Pyotr Alexeyevich Zamyatnin are marked at this location. However, the chambers existed here earlier, forming part of a merchant estate at the corner of Pyatnitskaya and Bolshoy Ovchinnikovsky Lane. In this part of Moscow, houses belonged to merchants and townspeople.

From 1805 to 1809, there was a transit yard here, and during this period, the chambers were not reconstructed. Significant changes occurred after the fire of 1812, when the building acquired its current appearance. The street facade lacks decorative elements, except for a semicircular window on the main pediment. The rear facade also has a pediment, which corresponds to the architectural canons of classicism.

The main building of the estate repeats the layout of Zamyatnin's chambers, elongated parallel to the street. In the 18th century, there was a large ceremonial courtyard in front of the house, and the estate was enclosed by a classical fence. The house still stands deep within the plot, separated from the road by a small park.

Externally, the house does not stand out against the backdrop of other buildings on the street. The smooth plastered walls and lack of decor do not attract attention. However, specialists have always been interested in this house. Thick walls and powerful vaults in the basement indicate its construction in the 17th century. The two-story chambers are confirmed by oversized brickwork and vaulted ceilings on the second floor. On the facade facing Bolshoy Ovchinnikovsky Lane, a wide inter-floor belt characteristic of chambers is visible beneath the later plaster. In the southwestern part of the house, there is a large single-column chamber, divided by partitions, as well as a corresponding room on the second floor.

During the Soviet era, the second floor retained the stucco and doors of the classical period.

Restoration in the late 1990s opened a number of windows on the main facade, which had been expanded during later alterations. Now the house is hard to call ordinary and unremarkable. It is said that restorers found treasure in the chimney of the second floor.

A complete set of repair and restoration works was carried out from 2011 to 2014. The restoration of the facades returned the building to its authentic appearance. Dilapidated roofing structures were replaced, walls and the enfilade structure of the second-floor rooms were restored, as well as the stucco decor. Oak parquet was laid according to preserved samples, and stoves on the second floor were restored.

In 2014, the object became a laureate of the Moscow Government competition for the best project in the field of preservation and popularization of cultural heritage sites "Moscow Restoration" in the nomination "For the successful implementation of an investment project for the restoration of a cultural heritage site."