Solar heating has existed in architecture since ancient times, when people used adobe and stone walls to trap heat during the day and slowly release it at night. In its modern form, however, solar heating first developed in the 1920s, when European architects began experimenting with passive solar methods in mass housing. In Germany, Otto Haesler, Walter Gropius, and others designed schematic Zeilenbau flats that optimized sunlight, and following the import of “heliotropic housing” to the U.S., wartime fuel shortages during World War II quickly popularized passive solar heating. Variations of this system then proliferated around the world, but it was not until 1967 that the first Trombe wall was implemented by architect Jacques Michel in Odeillo, France. Named after engineer Felix Trombe, the system combines glass and a dark, heat-absorbing material to conduct heat slowly into the house.

Stilt houses are houses raised on piles over the surface of the soil or a body of water. Dating back to the Neolithic and the Bronze Ages, a wide variety of raised dwellings have been identified in a variety of forms worldwide, designed with several diverse and innovative methodologies. Stilt houses are well suited to coastal regions and subtropical climates. More than just a distinctive structural design resolution, they also protect against floods, maximize views and allow homeowners to build on rocky, steep, or unstable land. They also serve to keep out animals and vermin, provide ventilation from underneath, and minimize a house’s ecological footprint.