The earliest stone church at Himmeta is thought to date from the 13th century, originally comprising a rectangular nave with a narrower, shingle-roofed gable roof, possibly with a west tower. During the 14th century the chancel was enlarged, giving the church a broader rectangular plan, and a sacristy was added on the north side, with the tower possibly dating from this period too.
The church's present star vaults were installed in the late 15th century. Some of the roof timberwork is medieval, reused and hand-hewn, though no complete medieval roof trusses survive; remarkably, surviving roof boarding may date back to the 1200s. Between 1768 and 1772 the church was extended eastwards, creating the current chancel, and the exterior walls were roughcast and painted yellow. The tower's spire, now clad in copper sheeting, was added in 1892.
Today the church consists of a rectangular nave with a three-sided chancel to the east and a tower to the west, with the sacristy attached on the north side. Inside, the nave has three star vaults and a domed vault above the chancel; the colouring of the woodwork fittings was renewed in 1954, when a medieval altar cabinet was also returned to the church.
Among the furnishings is a 15th-century altar cabinet, along with a marbled wood altarpiece carved by Jonas Holmin and installed in 1788. A neoclassical pulpit from 1853 stands against the north wall, its six-sided body decorated with gilded carved panels. The font, of pale granite, was carved in 1953.
The church has had at least two organs: an earlier instrument built in 1857 by Erik Adolf Setterquist of Hallsberg, and the current pneumatic organ built in 1943 by A. Magnussons Orgelbyggeri of Gothenburg, later revised in 1968.