Kosava Castle

Kosava Castle is a striking neogothic residence distinctly fashioned to resemble a fortified medieval castle. The complex sits atop an artificial hill and occupies an area of approximately 40 hectares, expanding to 55 hectares when including the parkland. Its design reflects a deliberate departure from classical palace traditions, embodying a retro-gothic style that challenged contemporary architectural norms associated with Tsarist Russia.

The palace’s layout is organized symmetrically along a central axis that begins with the main entrance portico facing the nearby locality of Ruzhany, proceeds through formal gardens and terraces, and culminates at an ornamental lake with a small island. In addition to the main entrance, two other porticos provided access: a northern portico and a hunting portico oriented towards the town of Kosava, the latter’s exact location now unknown.

The structure comprises a central two-story block bookended by two one-story wings, interconnected by narrow galleries featuring pointed arches. Variations in height between these elements create a dynamic and precise geometric composition. At each corner of the central block are faceted towers of different heights, while corner buttresses resembling towers reinforce the wings. The façades are rhythmically patterned with pointed arches, window niches, and tower-like features, all contributing to the fortress-like appearance of the palace.

Twelve octagonal towers symbolize the months of the year. Among them, four towers representing the fertile months—May through August—are distinctly taller, with the July and August towers reaching the highest points. This symbolic design connects the château to the cycles of nature.

The gothic influence is visible through battlemented towers topped with crenellations (a notched parapet), narrow slit-like embrasures intended originally for defense, and decorative elements such as pinnacles and machicolations—stone openings traditionally used to drop materials on attackers while serving as ornamental features. Together, these details give the building the character of a “small castle.”

Inside, the palace consists of 132 individually designed rooms. One wing housed an art gallery and a library containing roughly 10,000 rare books. The other wing contained residential quarters. A notable architectural feature was a special corridor and window configuration that allowed a single room to receive direct sunlight for two and a half days each year, a phenomenon commemorated as the “Day of the Room.”

Several rooms were named and assigned specific uses, including the White Hall, adorned with ceramic tiles, which served as a grand ballroom. The Black Hall was designated for card games, while the Pink Hall functioned as a workspace and music room. Other rooms bore titles such as Blue, Silver, Golden, Glass, and Mirror, each lavishly decorated with tapestries, carpets, marble, intricate fireplaces, and sculptural artworks.

Underfloor heating was installed throughout the palace. The heating apparatus was manufactured in Stąporków, Poland, while ceramic tiles came from Austria, reflecting the international connections in the palace’s construction. Bricks used in the building were also imported from abroad.

Surrounding the palace is an extensive parkland designed by Franciszek Jaszczołd in the style of Italian Renaissance gardens. This garden integrated the preexisting old park that belonged to Kościuszko’s estate. The park featured more than 150 species of exotic plants and included a greenhouse for rare botanical specimens. Its terrain gently sloped down toward three artificial ponds, interconnected with fountains placed on terraces.

Auxiliary structures included a chapel set on a circular plot covered with periwinkle located on the park’s western side, as well as functional buildings such as a kitchen, a distillery, and stables. Between the distillery and the ponds were the fruit garden, greenhouse, and gardener’s house. The Kosava River flanked the park’s northeastern boundary, where a system of three lakes was separated by dams lined with willow trees.

Following wartime damage, restoration efforts have addressed the palace’s foundation, waterproofing, and structural repairs. Work included installing modern utilities—electricity, water, and sewage systems—repairing internal walls, restoring windows, and painting the façades. By 2019, two entrance gates and the grand central staircase with its balustrade were rebuilt, allowing views toward the Kościuszko estate and lake. Heating was restored through a newly installed boiler house.

Since 2020, part of the palace functions as a hotel with six rooms and a restaurant named after Count Puslovsky. Visitors also have access to five observation halls that display temporary museum exhibitions established since 2017. Some of the most challenging restoration tasks have involved recreating large gilded paneled doors and repairing wooden stained-glass windows.

Plans continue to restore the palace’s colorful interior rooms, the park’s gardens, original parquet flooring, chandeliers, and several fireplaces, including a French-style hearth in the central White Hall. The entire ensemble is recognized as a cultural monument and is intended to host international cultural and scientific events upon restoration completion.