House of the Chultún (Casa del Chultún, Structure 20)

It is believed to have functioned as the house of an important person. This is emphasized by the portico with an entrance supported by two columns and a spacious interior room, at the center of which is a small altar or shrine. In the northern part, there is another room that was added later. Its name is associated with the fact that this building was integrated with a chultun (a Maya term referring to an underground cavity designed for water storage), located near its southwest corner.