Today it consists of a short nave, a choir bay and a pentagonal apse with a cross vault. A triumphant arch separates the nave from the choir bay.
The decoration of the church of St. Trinit is simple, but each part is highlighted by arches, formets and arcatures as well as by Romanesque friezes and capitals.
The exterior of the church offers an architecture that combines strength and refinement.
To the east: pentagonal apse, pilasters at the corners, bay set in a niche with columns.
To the west: the keep (choir bay) and the apse were built around 1120-1150, then later (a few decades) come the first two bays of the nave. In 1580, during the Wars of Religion, the building was fortified with a parapet walk and sentry boxes on the roof. These last constructions, too heavy, caused the vault to collapse. In 1652 the present vault was entirely rebuilt, in broken barrel and a little higher than the original roof, and in the 17th century the nave was extended by one bay.
In the centre, dominating the whole, a high square keep topped by a pyramid of slate roofs, topped by a pointed bell tower.
The church was used as an entrenchment camp during the Wars of Religion in the 16th century. The church was thus fortified at roof level (parapet, sentry boxes) and was subsequently badly damaged, which made it necessary to undertake major work in the middle of the 17th century. The vault collapsed under the weight of the additions and was replaced by the present one, which is higher than the original.
Despite all these changes, it retains a certain homogeneity that is pleasing to the eye, especially in its oldest part (choir bay and apse). The last added bay is unattractive, both inside and out.