original site is in Spanish, but Google Translate provides some insight into the design and purpose of the home.
The small home has a panoramic view of the Pacific Ocean and uses an exterior balcony to connect the interior spaces. The exterior was built of impregnated pine, to protect against moisture, while unfinished pine was used on the inside. The predominant materials used were wood and stone slab.
See more photos at Plataforma Arquetectura.