The Casa de las Campanas is one of the three oldest surviving buildings in the city of Pontevedra, and possibly the oldest of the civil ones.

Due to the lack of documentation, its origins are unclear, but it is dated to the late medieval period by the coats of arms found on the façade and the style of the doors. These coats of arms relate it to the lineage of the García Camba or more probably to that of the Puga family, lords of Regodeigón in Ribadavia.

The first existing reference to the Casa de las Campanas dates from 1587. The building was near the church of San Bartolomé el Viejo, which for unknown reasons did not have a bell. For this reason, the carillon of the Puga house was used to call the parishioners, which by that time had passed into the hands of the Benedictine monks of the monastery of San Salvador de Lérez. The monks also used the Casa de las Campanas as a wine cellar, in which they could store some 12,000 litres of wine.

Later, in the post-war years, the house was known as "Bar Pitillo" because there was an establishment on the ground floor where customers were given tobacco as a gift. In the 1980s the building fell into a state of abandonment until it was acquired by the town council in 2000 with the aim of restoring it. It is currently the headquarters of the Vice-rectorate of the University of Vigo.

Legend has it that during the 19th and 20th centuries there was a rumour that the treasure of Benito Soto, a well-known pirate from Pontevedra, was hidden in the house.