Borja Ancestral House is a Registered Property, Municipality of Paoay, Ilocos Norte located at Paoay, Ilocos Norte, Region I.
Claimed to be the oldest house in Paoay, the foundation can be assumed to be from the bahay na bato tradition, similar to the foundations of the Claros-Diaz, Carpio and Cua ancestral houses (bricks + mortar). However, the second floor has been added during the American period (windows are framed glass already, and flooring is cement). The house has a stone staircase that leads to the porch/main portal on the second floor. There are also several stucco works that display "B" in a family seal fashion. The house is located to the right of Paoay church, in between the Valentin Diaz marker and the old school building/Arte Luna Gallery.