This is a Romanesque-style church with Gothic additions and finishings. It is the city's second most important church after the Seu Vella. It has three naves of equal height with three apses.


The Romanesque-style central nave is the oldest. The two side naves were built in the Gothic style. Construction of the church began at the end of the 12th century under the supervision of the sculptors and craftsmen who worked with Pere de Coma, the master builder responsible for the Seu Vella. The side chapels and the octagonal bell tower - 15th century - are also Gothic in style. The building still maintains four important Gothic altarpieces: the largest is dedicated to Sant Llorenç, another is dedicated to Santa Úrsula and attributed to Jaume Cascalls, while the third is dedicated to Sant Pere and the final one to Santa Llúcia. On the Gothic-style door of the Plaça Sant Josep it is possible to see the coat of arms of Berenguer de Gallart. The church, which has twice served as the main cathedral, contains various pieces of art that belong to the Diocesan Museum of Lleida.