École du Sacré-Cœur, Art Nouveau school building in 16th arrondissement of Paris, France.

The École du Sacré-Cœur is a school building with Art Nouveau elements in the 16th arrondissement, designed by architect Hector Guimard with flowing facades and decorative details. The facade displays ornate ironwork railings, decorative rooflines, and colored embellishments characteristic of his design approach.

The École du Sacré-Cœur was built from 1895 by Hector Guimard as a school and residential complex for a religious community. It was inscribed as a monument historique in 1983, a protection covering the main facade, the roof, the former playground ceiling and the interior staircase.

The building shows how religious schools around 1900 in Paris combined teaching and housing in the same place. The spaces reflect the modern educational ideas and Christian community life of that era.

The building stands on avenue La-Frillière in the 16th arrondissement, near the Ranelagh gardens. It is partly damaged and remains a private school property, so the grounds and interiors are not open to the public; the Art Nouveau facade and ironwork are best seen from the street.

The building's protected status, granted in 1983, covers not only the facade and roof but also the former playground ceiling and the interior staircase. The staircase ironwork is thus legally safeguarded as part of the monument, alongside Guimard's exterior details.