The Church of the Annunciation in Kozlovo was built in 1872 by landowner Mikhail Petrovich Selifontov. Initially, it was a small church with a cross plan, topped with a wide but low rotunda with a flattened spherical finish. The silhouette was complemented by a light drum with a dome and a cross. A small bell tower was located at a distance. In 1862, peasant Kirill Butusov from the village of Burdukovo financed the construction of the bell tower and its connection to the church through the refectory. The church housed a classic iconostasis, made in white with golden elements. It contained ancient and medieval icons preserved from the old wooden church.

The church was built with two altars: in honor of the Annunciation of the Most Holy Theotokos and Saint Archangel Michael. Later, another altar was added, for the Other Heavenly Powers of the Bodiless. The parish in the village of Kozlovo was not wealthy, with only 376 parishioners. The church had 36 desyatins of land, and the parish included 6 settlements.

The village of Kozlovo is mentioned in documents as early as the mid-17th century as a long-established settlement, where 24 men lived. It is located on a steep bank of the Sutka River, overlooking the opposite right bank towards the village of Florovsky. Before the revolution, there was the estate of the Nilovs, a well-known family in the province. One of the family members was a favorite of Nicholas II, held the title of admiral, and was known for being able to drink a lot without getting drunk. He was present at the abdication of the tsar. Only the foundation of the estate remains, as the building was moved to the village of Ignatcevo to serve as a school. Several ruined tombstones from the Nilov necropolis have survived on the southern side of the church.

A notable feature of the village is the partially preserved birch alley leading from the manor house to the church.

Today, the Kozlov Church is in a semi-ruined state; however, under the dome of the summer church, the temple painting has been preserved. In the altar part, one can see the fresco "The Bread Giver" and an image of the Mother of God, which is a rarity for churches in the Nekouz district, as well as a fresco on the biblical theme "The Last Supper."

In the cemetery by the church, a granite monument remains on the grave of the peasants Ivanovs from the village of Podolskoye. This is the only monument of its kind on a peasant grave in the parish throughout the existence of the cemetery.

The last service in the church took place in 1960.