The private house in Regensburg was built in 1979 and is Thomas Herzog's own house; one can state that he or she is a client and designer himself, thus fulfilling his own needs or desires for the site. The house demonstrates particular principles of energy efficiency, making it one of the first eco-friendly houses. This can be demonstrated through the use of local materials or use of the site for features such as protection and aesthetics. Thomas Herzog was born during World War II (1941), in Munich, Germany. In 1965, he obtained his architecture degree from the Technische Universität München (University of Munich) and in 1973, at the age of thirty-two, became the youngest professor of architecture in Germany. He is now known for his work on eco-technological architecture. Throughout this essay, I will analyze Thomas Herzog's house in Regensburg and explain the themes and principles behind different aspects of the houses in comparison to two other houses in extruded form. During the 1970s Architects began to think about low-energy buildings, because of the oil crisis of the early 1970s. This resulted in experimental houses, in different "folkloric or rustic" styles, thus being cited as the “alternative anti-industrial ideology”. Although Herzog did not adopt this style, he continued to use the modernist tradition. Herzog was an early pioneer of pneumatics and energy-efficient architecture in West Germany, a country that enthusiastically embraced this belief, transforming it into a "new orthodoxy." Herzog's first low-energy house is the opposite of "popular or rustic," creating a new invention, a design born of logic that itself owes to science rather than emotion. The house in Regensburg has a "pure prism shape and a medium of paper......materials which also refer to Herzog's use of wood. This reflects an interest in the use of Japanese timber framing traditions, showing the sensitivity and irregularity of composition. Like the House of Regensburg; aesthetics played a role but it is interpreted here in a different sense. Eames created an aesthetic effect born from "careful juxtapositions of ready-made structural elements." This can be seen on the webbed trusses, which are formed with reflections and transparencies. Where the selected objects are part of the architecture itself, as much as the building. Eucalyptus trees filter the light entering the house, selecting only sensible objects, which creates a unique effect for the interior of the house. The design of the house achieved a "poetry of form", which was in contrast to Mies' "absolution ».’.