Casa Colonial, Quillota, Historical monument in Quillota, Chile

Casa Colonial is a Spanish colonial residence in Quillota built with thick adobe walls and traditional construction methods typical of the period. The structure features a central courtyard surrounded by rooms and covered galleries that provided shade and shelter for daily activities.

Built in 1772 as a residence for a Spanish family, it is the oldest surviving building in Quillota. On 6 August 1822 Bernardo O'Higgins read from the house the decree granting San Martín de La Concha the title of city of San Martín de Quillota, and the celebration was held on the property. In 1837 governor José Agustín Morán rented it and lodged minister Diego Portales there on the night of 2 June; Portales was seized and executed the next day. Declared a National Monument by Decree 556 of 10 June 1976.

The house was originally a wealthy family residence and still shows how colonial families organized their daily lives through its room layouts and architectural choices. Visitors can observe the practical arrangements that reveal the customs and priorities of that era.

The house is centrally located in Quillota and easy to reach from other parts of the city, making it a convenient stop for visitors exploring the town. Inside you will find display areas showcasing archaeological artifacts and historical documents related to the region's past.

On the night of 2 June 1837, Governor José Agustín Morán lodged Minister Diego Portales in this rented house; the next day Portales was betrayed and captured while reviewing the Maipú battalion under Colonel José Antonio Vidaurre, then executed on the road to Valparaíso.