The chapel stands in the newer part of Fryksände's churchyard, close to the parish church itself. It was built by master builder Rickard Nyqvist and consecrated in 1950. According to the architects' intentions, the building is enclosed by stone walls and a grassed bank, creating a sheltered courtyard that anchors it within the landscape and sets it apart from the surrounding cemetery and parkland.
The exterior is white-rendered brick beneath a steep, deeply overhanging shingle-clad saddle roof. The gable ends are angled on three sides, giving the building an octagonal plan that, together with the sharply pitched roof, has been read as an allusion to Noah's Ark. Inside, the church room runs north to south, with a three-sided chancel and, at the opposite end, a porch; a sacristy adjoins the north side, and a mortuary is built onto the south side, concealed externally by the grassed bank.
The interior is light and simple, with limestone flooring, a tall panelled ceiling and white-plastered walls, set off by dark blue, black and dark brown window frames and doors. A star pattern is laid into the floor before the rectangular stone altar. Rectangular, angled windows with deep sills, together with a roof light and a window in the north gable, provide the main sources of daylight.
Above the altar hangs a relief by the sculptor Stig Blomberg, carved in elm and brightly painted, depicting the angel and the women at the tomb from the Easter gospel narrative. A combined altar and processional crucifix in silver, by the designer Sigurd Persson, was added in 1968. The pneumatic organ dates from 1949, built by Åkerman & Lund.
The chapel takes its name from the legend of Siri in Bada, said to have lost her way in the forest while travelling to her summer pasture. She is said to have vowed that the parish church would inherit her property if she found her way home, and to have then heard the bells of Fryksände church guiding her back. She is said to have kept her promise by leaving the forest property of Långsjöhöjden to the parish. The legend is unconfirmed but usually dated to the late medieval period; income from the land is said to have helped fund the chapel itself as well as the nearby parish hall, and, until 1972, to have spared parishioners from paying church tax.