According to the administrative-territorial division, the city of Bor included several neighboring settlements that were independent communities with their own parish churches until 1918. Among them were the villages of Kononovo, Mukhino, and Sobchino. The village of Kononovo was located north of the center of modern Bor, in the floodplain of the Vezloma River. The main street of the village was called Preobrazhenskaya in honor of the local church, parallel to it was Sergievskaya, and the third was Polevaya. The construction of the church in Kononovo began in 1754 thanks to the efforts of priest Andrei Kuritsyn. In 1757, the church was consecrated: the main altar in honor of the Transfiguration of the Lord, the right one in the name of the Holy Trinity, and the left one in the name of Sergius of Radonezh. Locals have referred to the church as Sergievsky both before the revolution and today. The consecration of the altars is connected with the fact that in the 17th century, this was the estate of the Holy Trinity Sergius Lavra.

In 1828, a stone three-tiered bell tower about 32 meters high was added to the church, built with the funds of parishioner Nikolai Ivanovich Pachkolin. The bell tower had seven bells, the largest weighing 3376 kg. In 1829, a stone watchman's lodge was built between the church's refectory and the bell tower, completing the architectural appearance of the church. The territory of the Transfiguration Church was enclosed by a stone fence with holy gates. In the 19th century, there was a parish almshouse here. Before the revolution, parishioners adorned the church with expensive icons and church utensils. The parish included 13 surrounding villages, such as Krasnogorka, Tesovaya, Omanovo, Zimenki, Shershnevo, and others, where more than 2000 peasants lived. The burial site near the church was called Sergievsky. The tolling of the two-hundred-pound bell, which they were proud of, announced the funerals or celebrations of the residents. It was swung first with a foot pedal and then with a tongue.

During the Soviet years, the Bor churches faced a sad fate: they were desecrated and destroyed. The Transfiguration Church was closed in 1935, with plans to convert it into a club and later house a library. In 1960, the church was turned into a Pioneer House, which functioned for a long time. Only in 1991 was the Transfiguration Church returned to the Russian Orthodox Church. In 2006, the building was restored, partially recreating its original exterior based on archival drawings and photographs. Today, the Sergievsky Church is being revived in Bor, a monument to the parish of Sergius in Nizhny Novgorod. Restoration work is being carried out as part of the regional program 'Under the Spiritual Protection of St. Sergius,' which includes the spiritual and educational project 'Sergievskaya Sloboda' in the territory of Bor.