Arminius is located at the junction of the Westersingel and the Museumpark, in the centre of the cultural district of Rotterdam. The building was erected between 1895 and 1897, designed by Henri Evers and James Peter Stok. Evers also later designed the City Hall of Rotterdam.
Evers chose unusual materials for the epoque, for he was inspired by early Christian Syrian churches. Red bricks and the deep brown-red teakwood dominate the interior. The decorative elements have a distinct Art Nouveau character.