A populated place on the territory of modern Otradnoye was first mentioned in 1708 as a village of
Ivanovskaya () at the
confluence of the
Neva and the
Tosna Rivers. In 1784, the land was acquired by empress
Catherine the Great and a residence known as
Pella estate was established. The estate was mostly destroyed on the orders of
Paul I. In the 19th century, the area was a part of
Shlisselburgsky Uyezd of
Saint Petersburg Governorate. On February 14, 1923, Shlisselburgsky Uyezd was merged into
Petrogradsky Uyezd. In January 1924, the uyezd was renamed Leningradsky. On June 16, 1940, the settlement of Otradnoye was granted
urban-type settlement status. Between September 1941 and January 1944, during
World War II, both Ivanovskoye and Otradnoye were occupied by
German troops. and Otradnoye was included into the district. ==Administrative and municipal status==