The building's origins are refreshingly unromantic: in 1965 the congregation bought a former Konsum grocery store on the site and had it rebuilt as a church under the architect Gunnar Wikland. It was consecrated in September 1966 by Bishop Bo Giertz, giving Aspenäs kyrka a foundation date far more recent than most Swedish parish churches.
The exterior is simple timber construction, with vertical wooden panelling and a saddle roof covered in concrete tiles. Inside, the elongated nave carries the same wood panelling up to the ridge, braced by visible steel tie-rods, leading to a notably narrow chancel at the far end. A separate bell tower was added later, completed and consecrated in 1972, housing a bell donated by a parishioner.
Furnishings are plain and functional, with an altar, pulpit and pews all made of pine, in keeping with the building's modest, converted character. A chancel window was fitted in 1968 with stained glass by Tullan Flick depicting the parable of the wise and foolish virgins. Visitors may also notice a series of wall textiles illustrating the life of Jesus, designed and made by the artist Gunilla Sjögren, which give the plain interior much of its character.
The organ, built in 1983 by Robert Gustavsson's organ workshop, is a small instrument with five stops across manual and pedal, fitting the building's unpretentious scale.