The St. Nicholas Church is not only an important historical and architectural monument of the city but also its living soul and invaluable heritage. According to known data, in the village of Nikolaevka, near the existing wooden church of St. Nicholas the Wonderworker, the construction of a new stone five-domed St. Nicholas Church with a bell tower over the narthex began around 1898. The project was developed by architect Pyotr Nikolayevich Saveliev, whose grave is still located on the church grounds. It is believed that the church was built with funds from landowner Nikolaev or Nikolai Stefanovich Chutin, as well as donations from peasants and craftsmen from Little Russia and Great Russia.

The church, surrounded by beams, groves, and springs, is located in a picturesque place near the Kamyshevaha River. According to the "Reference Book of the Yekaterinoslav Diocese," the stone church in the village of Nikolaevka was built in 1902 with funds from the administration and workers of the Maksimovsky mine. The church has a cross-dome shape with a semicircular altar apse to the east. The roof features five domes: one large and four small. The central dome is octagonal and tent-shaped, topped with a finial and cross. Above the narthex rises a quadrangular bell tower with an octagonal drum and dome.

The church has three entrances with double-leaf iron doors and porches. The central dome has eight large windows, and the church has a total of sixteen windows: twelve in the main part, two in the altar, and two in the narthex, making the interior bright and cozy. There is also one window each in the sacristy and vestry. The church measures 37 m in length, 25.5 m in width, with a total area of 363.5 sq.m. The foundation and walls are made of rubble stone and red brick, plastered on the outside with decorative elements. The floor is laid with Mettlach tiles. In front of the church stands a stone arch with three openings. The bell tower houses bells that call people to worship.

In the early 20th century, in honor of the 300th anniversary of Emperor Nicholas II's ascension to the throne, a bust of the tsar, now glorified by the Church, was installed in front of the church. The church survived the revolutionary events of 1917-1918 but was closed by local authorities in the 1930s. The bells were removed, property was looted, and the building was used as a grain storage facility. Despite the neglect, the church survived.

Worship resumed during the Great Patriotic War. Around 1943, the church was reopened, cleaned by parishioners, and restored. Under its dome, prayers were offered for the living and the deceased, for the front and the Motherland. However, regular services only began after the war, with the first rector being Archpriest Fyodor Vasilyevich Lukyanov. In 1961, Metropolitan Boris of Odessa signed an order to merge the Kadiyevka St. George Parish with the Nikolaev Church, making the parish one of the largest in Luhansk region.

The revival of the church began in the 1990s thanks to the efforts of Archpriest Nikolai Mikhailovich Romer, who served as rector from 1989 until his death in 2007 and is buried in the church cemetery.