The oldest part of the building is the broad stone tower, begun in the early 1200s as a defensive structure, its gabled tops added later in 1855 along with a supporting buttress to the north. Visitors enter through this tower and then step into a much brighter, more spacious interior, largely the result of a substantial 1856 rebuilding to designs by the noted architect and scholar Carl Georg Brunius, who added the transepts, a three-sided chancel and a new nave. Only the tower and the nave's foundation stones survive from the medieval church.
Inside, the altarpiece, pulpit and font all date from the early 1600s and share a striking oak construction, richly carved and painted in bright colours. The pulpit carries a Latin inscription drawn from Psalm 119, a devotional text typical of the period's church furnishings.
Among later additions are three chandeliers from 1762, chancel window paintings by Stockholms Glasmåleri given during a 1906–07 renovation, and an altar crucifix, smaller chandeliers and brass sconces added in 1952.
Two distinctive modern works reward a closer look: a textile wall-hanging depicting biblical scenes connected to the local Bromölla area, displayed in the north transept, and ceramic panels by the artist Stig Carlsson in the south transept.
The church organ has its own layered history: an instrument built in 1907 by Olof Hammarberg of Gothenburg was later given a new Rückpositiv division in 1954, before the present mechanical organ was built that same year by the Frederiksborg Orgelbyggeri workshop in Hillerød, Denmark.