St. Croix house is a civic center in Fredrikstad, known for being a popular gathering place for young people. The center offers a variety of events, including child-friendly family concerts. One of the prominent artists who has performed here is Moddi, who had his breakthrough at the Palace Christmas Concert in 2011 and later released the Christmas album "Denna tida i fjor".
In addition to concerts, St. Croix house offers a vegetarian lunch and dinner buffet, making it an attractive place for visitors who want a varied diet. The center has also been recognized for its involvement in the local community, winning the "Inspiration of the Year" award at the GRL PWR Festival. Beharie, an artist known for her rich and powerful voice, combines indie, folk and soul in her music, contributing to the diverse cultural offerings at St. Croix house.