The long Sadovnichesky Street is full of unexpected discoveries. Behind the Kriegskommissariat, in the courtyard of an ordinary residential building built in 1898 (No. 55), medieval chambers (building No. 55, structure 2) are hidden. The easiest way to reach them is from the Kosmodamianskaya Embankment.

According to the census books of the first half of the 18th century, this property belonged to merchant Grigory Babkin. In the far part of his courtyard were stone chambers from the 17th century, which have survived to this day.

Grigory Babkin (1687, 1769) was a first-guild Moscow merchant and owner of a wool factory. The Babkin family played an important role in the development of wool production in the Moscow region for a long time.

The main part of the building is a residential house from the third quarter of the 17th century with a typical structure for that time: a vestibule and two vaulted chambers on the sides. The lower part of the Red Porch, which once faced the street, has been preserved here. In the late 17th century, a new volume was added to the house from the east: a vestibule and three vaulted chambers. In the first half of the 18th century, another extension with vaults on the first floor was added to the western facade. Thus, the building was formed from three parts, each of which has significant historical and cultural value.

In 1803, the chambers belonged to merchant Natalia Lukina and already had a modern configuration and volume. However, in the 1870s, the new owner, merchant Yeremeev, despite prohibitions, added a wooden mezzanine with a pediment over the middle part of the building, for which he was fined by the city authorities.

He was not forced to dismantle the extension, and it stood for a whole century until the scientific restoration of the chambers before the 1980 Olympics.

It is hard to believe that half a century ago this was an ordinary-looking two-story residential house with an attic. Many windows were bricked up, and the frames were trimmed. But in the 1970s, workshop No. 13 of 'Mosproject-2' under the guidance of E.V. Trubetskaya conducted research and restoration work to recreate the 17th-century decor on the middle, oldest volume of the building. The facade was restored with patterned frames, corner columns, and a cornice, while the interior partially returned to the ancient layout of the chambers. In one of the rooms, baroque stucco from the first half of the 18th century has been preserved.

The chambers are a cultural heritage site of federal significance. The building is currently used as office space.