Rescue excavations at the site of Macabalaca (PV35-72) in the Huarmey Valley, Peru, identified a rectangular structure with niches on its walls and a floor with a central hearth. We present results of those excavations, emphasizing the stratigraphic components and relative chronology. We conclude that the structure belongs to the Kotosh Religious Tradition (KRT) and can be preliminarily placed in the Late Archaic (2800–1800 BC) or Early Formative period (1800–1200 BC).