The stone church at Hangvar was constructed during the second and third quarters of the thirteenth century, with the nave and chancel built together, possibly replacing an earlier timber church on the site. The tower followed some decades later. A new sacristy was added in the eighteenth century, replacing an earlier one, and an additional storey was probably built onto it during the nineteenth century. Early in the twentieth century the church received a new floor and had a window opened up.
Among the church's most notable furnishings is a limestone font dating from around 1250, one of the oldest objects surviving in the building. The wooden altarpiece dates from 1684, while the pulpit's basket is older still, from 1633, with its staircase and canopy added later in that century. A triumphal crucifix hangs in the chancel arch; this is a reconstruction of a twelfth-century original, giving visitors a sense of the church's much earlier devotional life. A copy of a madonna image is also on display.
Adjacent to the church stands a smaller building known as the "kyrksalen" or church hall, which has historically been used for winter services when the main church was less practical to heat and maintain.
The church's organ was built in 1911 by E.A. Setterquist & Son of Örebro and has since been altered twice, in 1970 and again in 1984, retaining its mechanical action with a pneumatic wind chest.