The semi-circular two-story Kitchen Building faces one facade toward the Butter Meadow and the other toward the orangery complex, designed by architect Rossi between 1818-1822 simultaneously with the palace. The building is located along the northern boundary of the Butter Meadow. It received its name from its purpose — it once housed the kitchen. This two-story building has a semicircular plan. The eastern facade is decorated with a portico featuring decorative vases in niches. The southern facade is adorned with fourteen sculptures depicting ancient gods and heroes, made from Pudozh stone by sculptor S. Pimenov. In the central part of the facade is a six-column Doric order portico with massive gates that close off the entrance to the interior of the building. On the outside, the Kitchen Building has no windows. All windows face the inner courtyard, which was cobbled in the 19th century.

The building was constructed so that sunlight never enters the rooms intended for cooking and food storage. The solid walls of the Kitchen, richly decorated with sculpture and stucco, concealed the utilitarian purpose of the structure, creating the image of a solemn park building.

Currently, the Kitchen Building houses the conservation fund of the Yelagin Island Palace Museum.

Sources:

https://elaginpark.org/central-park/dvortsovo-parkovyy-ansambl/kukhonnyy-korpus/

https://www.citywalls.ru/house7508.html