The site is in the building he nicknamed "Blå tornet" (Blue Tower) at Drottninggatan 85 on the corner of Drottninggatan and Tegnérgatan in the borough of Norrmalm in central Stockholm.

It is operated by a foundation with the Strindberg Society, the City of Stockholm and the Nordic Museum as principals.

[3] Strindberg moved into a three-room apartment on the fourth floor of the building in 1908 and lived there until his death in 1912.

The museum consists of Strindberg's flat and library, as well as an area for temporary exhibitions.

Wallpapers and other decorations have been reconstructed in accordance with how the flat looked at the time the writer lived there, but furniture and other details are original.