It is one of the ancient house you can see. With an architectural style which had been followed during the Spanish era, the Yap Sandiego Ancestral house still retains its glory and beauty. The house is made of local hardwoods (second floor) and coral stones (first floor). The roof of the house, on the other hand, was built using Tisa clay tiles. All the materials used to build the house was quite durable and with Val Sandiego maintaining the house as it is, Yap Sandiego still looks magnificent.