Nicholas Kozinskaya church originally stood at the fortress in the town square. At its present location, in the goat Colony, it moved to the 1775-1779 biennium. and built in stone for public donations. At first the church was odnoprestolnym. In 1844, to Nicholas Kosinski temple built a refectory with two chapels - one in honor of St. Alexis of Moscow, Peter, Philip and Hermogenes Ions, the second - in honor of the Tikhvin Icon of the Mother of God. Also bell tower was added, which became the dominant architectural ensemble of the whole temple. Belfry sustained in the traditions of ancient architecture and the top surmounted by a helmet-shaped head of the powerful.

The temple is in the style of a provincial classicism. Two rows of windows closed quadrangular cross vault and crowned by a head. By quadrangle adjacent to the reduced volume of the altar apse, side discharging arches and a semicircular arch. The altar is separated from the bulk of the temple stone blank wall with three arched passageways. The bell tower and the refectory are made in eclectic style. The temple is covered with a semi-circular tent.

Beautification of the church actively engaged tradesman Fedor Andronovich Izvekov, churchwarden, who from their own funds donated to the temple 600 rubles. On its funds in 1899-1900 gg. refectory was repaired and re-painted the walls of the church, gilded iconostasis, covered with tile floors metlahskoy. In 1848, the church opened a parish school.

In 1935 the church was closed and used the building as a warehouse "Zagotzerno." Then it housed the department Renovationist "bishop" Rastorgueva AI, then the temple was closed again. In 1941, German occupation authorities handed over the building of the temple of the Church. After the liberation of Kaluga in 1942 the temple was closed again. Immediately after the war, he again began to act.

Since 1992, at the church Sunday school. The clergy of the Church carries the care of prisoners in jail and ITU, Faculty of Sociology students Pedagogical University serving in the military unit Azarov. By the arrival of St. Nicholas Church Kosinski assigned Church of the Nativity in the tanner.

Temple is a local monument of architecture and urban planning .  The St. Nicholas Church preserved rich decoration, including the iconostasis .  Most of the icons were painted in the ancient traditions .  The low two-tier iconostasis chapels next to modern icons and installed earlier periods .  In the local row of the iconostasis of the main temple is an ancient hagiographical icon of St. Nicholas, which was transferred from the old wooden church .  The icon is venerated especially parishioners .  The church is an icon of the closed churches and Kaluga .  Before the right choir is an icon of the Annunciation of the Virgin Mary, dating from the first half of the 18th century . , Brought here from the destroyed Church of the Annunciation .  For most revered icons of the church are: the icon of St. Nicholas, located in the iconostasis of the Tikhvin chapel, Our Lady of Kazan, Kaluga Icon of the Mother of God; icon "Soothe My Sorrows"; Icon Guria, Samonas and Aviv; Icon of Saints Zosima and Sabbatius of Solovki, Korsun Icon of the Mother .