It occupies from the XIIth century this porch belonging to Merindad de Uribe, the fertile plain of the river parallel Asua to laughs at Bilbao. The Sangroniz hill raises his country and for Artxanda skirt appears in his top to the town of Bilbao.

In the plain they expand you them travel districts of the Treeless one and of Basozabal, and to the Artxanda security those of Izarza and Sangroniz. Sondika already had in the XIIth century a small port that was forming opposite to the Tower of the Asua and along with this one a treeless call of Saint John for the name of the parochial church in her built, assuming to the port a commercial strategy (foundries) and to serve like the first link that from Bermeo was joining Bilbao to Today Txorierri with the sea ports headed for quoted of Bermeo.

Sondika is named like porch because in antiquity, after there did not exist houses of councils or town halls, neighbors were celebrating his meetings to discuss the common matters in the entry to the parish, entry that normally was covered and whose denomination is that of porch. (fte. ayto)