Monument of architecture. Order of the Ministry of Culture and Information Policy of September 22, 2023, No. 523. Listed in the register under the number 140203-Lh). As a monument of architecture, the mansion is a Belgian architectural heritage site in Lysychansk.

In 1889, engineer and entrepreneur Ernest Solvay decided to build a household soda factory and, along with it, a settlement for employees and workers, which was designed by architects invited from Belgium. The three-story stone building, which is listed as a “mansion” in the register of cultural heritage monuments of the Luhansk region (No. 319), was erected in 1895 and was intended as a barracks for a soda factory for 200 young men. The name of the author of the project remains unknown.

In the late 19th and early 20th centuries, a female gymnasium of the Prosvita Society for children of the soda factory's management functioned here. During the Ukrainian Revolution of 1917–1921, the building was destined to become a military hospital. Since 1923, it was used as a building for factory training at the soda factory, which had an impact on its future profile.

Since 1977, the Lysychansk Multidisciplinary Gymnasium has been operating here, which in 2021 changed its name to Lysychansk Lyceum No. 17.

The design of the building is cozy and neat, the layout is extremely compact. The building has only 10 rooms of 50 m² each, they are located on all floors and open onto the stairwells. The walls and foundation are made of local sandstone, the corners of the building, cornices, window and door frames are made of red ceramic bricks. The interfloor ceilings are wooden, and the basement has a reinforced concrete I-beam structure.

The gymnasium building was annotated as an architectural monument and registered as a local landmark in 1982 as the “Barracks of the soda factory for 200 bachelors.” Today it is listed as a manor house and, according to the Order of the Ministry of Culture and Information Policy of September 22, 2023, No. 523, is included in the register No. 140203-Lh.

It is valuable both as an independent object and as an element of the ensemble of the residential village.

On February 22, 2016, Ambassador of Belgium to Ukraine Luc Jacobs presented the Lysychansk Museum of Local Lore with a diploma for preserving Belgian heritage abroad.

The first damage to Lysychansk Lyceum No. 17 occurred in 2014, when the city was temporarily occupied. At that time, this historic building sustained minor damage to the roof and windows. UNICEF and the Safe and Child-Friendly Schools project helped repair the damage.

On May 1, 2022, a fire broke out in the building due to targeted shelling by the Russian invaders, which completely destroyed this cultural heritage site. Lysychansk lost one of the best educational institutions in the Luhansk region and one of the 100 best schools in the country, as well as a 19th-century architectural monument.