Following the characteristics of all Lonchas, based in turn on the Aragonese private architecture, Tarazona had on the top floor with a "lookout" or gallery arches, with the function of false structure whose serves to protect the building, and topped in a blown wooden eaves.
From this lookout the city council watched the bullfights that were held on the occasion of the patron feasts or particulars of each guild, as well as religious events, such as the procession of Corpus Christi through the square.