Kastravickaja House, Art Nouveau residential building near Volodarsky Street, Minsk, Belarus

The Kastravickaja House is a three-story stone building on a high plinth at the corner of Kirava and Valadarskaha streets, with a P-shaped plan made of a corner section and two wings. Its facades combine unplastered terracotta brick walls with whitewashed plastered piers and cornices, and feature varied windows, balconies, ceramic inserts and decorative ornament. The Kirava facade ends in a semicircular attic, the Valadarskaha side in two trapezoidal attics, and the cut corner has a second-floor bay window topped by a three-sided volume whose tower no longer survives.

Built in 1911 to a design by architect Otton Krasnopolski, the house belonged to Jadwiga Kostrowicka (1867–1935), sister of Edward Voinilovich, who chaired the Minsk Agricultural Society from 1907 to 1921. Its ground floor held the Libava-Romenskaya railway administration, a pharmacy and a railway workers' mutual aid society, with flats above. In 1922 the building passed to the Belarusian State University and housed its professors and technical staff; Nikolai Shchekatikhin, founder of Belarusian art studies, lived here from 1922 to 1930, commemorated by a plaque installed in 2008.

The house belonged to Jadwiga Kostrowicka (1867–1935), sister of Edward Voinilovich, who chaired the Minsk Agricultural Society from 1907 to 1921. From 1922 the building passed to the Belarusian State University and housed professors and technical staff; Nikolai Shchekatikhin, founder of Belarusian art studies, lived here in 1922–1930, commemorated by a plaque installed in 2008 (sculptor Konstantin Selikhanov).

The building sits at a central corner in Minsk and is easily reached by public transportation. Visitors can view it from outside to appreciate the architectural details, which are especially visible in daylight.

Each floor displays different ornamental patterns that create a vertical sequence of architectural details from bottom to roof. This method of gradual detail variation was a deliberate design choice to guide the eye when looking upward.