In 1952, the house and its appertaining property was willed to the Municipality of Haugesund as a gift in line with Lars and Inga Meling's last wishes.
The last extension was carried out in 2004 and was designed by the architectural bureau Sandved og Wathne Arkitekter AS.
Today the museum has an art collection that encompasses the works of Norwegian and international artists such as Lars Hertervig, Edvard Munch, Pablo Picasso, Christian Krohg, Per Kleiva, Håkon Bleken, and Inger Sitter.
The gallery has a collection that is rich in art connected to Western Norway, with works by artists such as Nikolai Astrup, Ole Frøvig, Trygve Goa, Kjell Pahr-Iversen, Fredrik Kolstø, Rita Marhaug, Olav Nygaard, Helene Nielsen, Stein-Magnus Opedal, Knut Rumohr, Gry Hege Rinaldo, Bernt Tunold, and Bjørn-Sigurd Tufta.
The Haugesund Art Society displays its current sales exhibitions in the gallery year round.