The backyard house at Brahenkatu 1 dates from the 19th century, but at the beginning of the 20th century its exterior was changed to Art Nouveau style. The people in Raahe liked Art Nouveau style, whereas they did not become enthusiastic about changing their houses to revival styles like other towns did during the latter part of the 19th century. There is only one joiner style house in Raahe. Houses in the spirit of Art Nouveau are also represented by the small dwelling house owned by the Sovelius foundation on the north side of the Sovelius’ main building on Rantakatu, and by the small house at Saaristokatu 4 with its embellished windows. The backyard house at Brahenkatu 1 is the most decorative example of the Art Nouveau style houses in Raahe with its plant and animal motifs.