The two architectural examples of greatest artistic interest from 18^th century Aretxabaleta are found in the historic centre.

Arratabe Mansion, today the site of the Town Council, is a formidable structure. The highlights are the coat of arms on the corner of the building and the forged ironwork of the balconies.

A few metres away is Otalora Mansion, a simple structure that stands out for its eaved roof made of carved wood.