The building was originally constructed in 1977 as a parish hall, designed by the architect Victor Landén. It was not until 1984 that it became a district church serving Mariero, prompting alterations carried out in 1986 to adapt the premises for regular worship.
From the outside, Marierokyrkan is easy to overlook as a church. It is built of yellow brick with a basement storey, and its architecture gives little external indication of its ecclesiastical use. The church is physically joined to a parish house and recreational rooms, reflecting its origins as a multi-purpose community building rather than a purpose-built church.
A freestanding bell tower stands at the south-eastern side of the building, designed by Per Molnit and holding two bells. This structure, more traditionally recognisable as a church feature, contrasts with the plain, functional appearance of the main building.
Inside, the altarpiece is a woven textile produced at the studio of Agda Österdahl, offering a modern artistic focal point in place of a conventional painted or carved altarpiece. The main musical instrument is a digital organ, again reflecting the church's practical, twentieth-century character rather than older ecclesiastical traditions.